CN106200856A - A kind of portable set and power management chip thereof - Google Patents
A kind of portable set and power management chip thereof Download PDFInfo
- Publication number
- CN106200856A CN106200856A CN201610762807.8A CN201610762807A CN106200856A CN 106200856 A CN106200856 A CN 106200856A CN 201610762807 A CN201610762807 A CN 201610762807A CN 106200856 A CN106200856 A CN 106200856A
- Authority
- CN
- China
- Prior art keywords
- module
- field effect
- effect transistor
- input
- outfan
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000005669 field effect Effects 0.000 claims abstract description 155
- 230000009466 transformation Effects 0.000 claims abstract description 59
- 238000004146 energy storage Methods 0.000 claims description 24
- 238000001914 filtration Methods 0.000 claims description 23
- 238000005070 sampling Methods 0.000 claims description 17
- 230000005611 electricity Effects 0.000 claims description 9
- 238000001514 detection method Methods 0.000 claims description 5
- 238000000465 moulding Methods 0.000 claims description 5
- 230000008859 change Effects 0.000 claims description 3
- 239000000284 extract Substances 0.000 claims description 2
- 238000004020 luminiscence type Methods 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 claims 1
- 230000008901 benefit Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000003079 width control Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/26—Power supply means, e.g. regulation thereof
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention belongs to field of power management, disclose a kind of portable set and power management chip thereof；The present invention is by when accessing charging unidirectional current, charging unidirectional current is forwarded to charging module and the source electrode of the 4th field effect transistor by power supply interface module, charging module generates charging voltage to be charged battery according to charging unidirectional current, control module controls to drive the conducting of module drive the 4th field effect transistor, and the 4th field effect transistor generates load voltage to be powered load blocks according to charging unidirectional current；When not accessing charging unidirectional current, control module controls to drive module drive the 3rd field effect transistor to realize break-make according to preset switches dutycycle, and control module drives module to control the conducting of voltage transformation module, voltage transformation module generates load voltage to be powered load blocks according to electric energy, and according to electric energy generation portable power source voltage so that the external load being connected with portable power source interface module to be powered, reduce system cost.
Description
Technical field
The invention belongs to field of power management, particularly relate to a kind of portable set and power management chip thereof.
Background technology
At present, the portable set of Tape movement power supply has two kinds of implementations: one be double inductively, as it is shown in figure 1,
I.e. portable power source uses the second inductance L2 and second source managing chip U2, load (fan) to use the first inductance L1 and first electricity
Source control chip U1, the first power management chip U1 and second source managing chip U2 all include control module, the first switching molding
Block and second switch module, control module controls the first switch module and the opening and closing of second switch module, mobile electricity
Source and load (fan) function are each independent, can work simultaneously, and shortcoming is that system cost is high.Another kind is the most inductively,
As in figure 2 it is shown, portable power source and load (fan) use inductance L1 and power management chip U1 simultaneously, it is connect by key-press module
Receiving key command, switch selects module to control the first switch module or the unlatching of second switch module according to key command, simultaneously
Controlling the opening and closing of the 3rd switch module, now, portable power source and load (fan) can not work simultaneously, this scheme cost
Low, but scheme application is dumb, and starting portable power source must be switched by keypress function.
Therefore, the shortcoming of the portable set of above-mentioned Tape movement power supply is to work at portable power source to be realized and load simultaneously
Must there be two inductance, thus cause system cost high.
Summary of the invention
The invention provides a kind of portable set and power management chip thereof, it is intended to solve existing for prior art be
The problem that system cost is high.
The present invention is achieved in that a kind of power management chip, itself and portable power source interface module, load blocks, electricity
Source interface module, energy-storage travelling wave tube and battery connect, and described power management chip includes the 3rd field effect transistor, described energy-storage travelling wave tube
The storage electric energy when described 3rd field effect transistor conducting, and stop exporting described electric energy；Described energy-storage travelling wave tube is at described 3rd
Effect pipe turn off time release electric energy, described power management chip include drive module, control module, charging module, feedback module,
Voltage transformation module and the 4th field effect transistor；
Described control module is connected with the first control end of described feedback module and the second control end of feedback module, institute
State drive the first outfan of module and described second outfan respectively with the first control end and electricity of described voltage transformation module
Second control end of pressure modular converter connects, and the 3rd outfan of described driving module connects with the grid of described 3rd field effect transistor
Connect, described driving module be connected with the grid of described 4th field effect transistor, the 3rd input of described driving module with described instead
The outfan module of feedback module connects, and the first input end of described driving module and the second input of described driving module are respectively
It is connected with control module, the second outfan of described voltage transformation module, the drain electrode of described 4th field effect transistor, described feedback mould
The first input end of block collectively forms the load voltage outfan of described power management chip；The input of described voltage transformation module
The drain electrode of end and described 3rd field effect transistor collectively forms the power tube drain electrode end of described power management chip, and described voltage is changed
First outfan of module and the first input end of described feedback module collectively form the supply voltage of described power management chip
Outfan, the source electrode of described 3rd field effect transistor constitutes the earth terminal of described power management chip, described 4th field effect transistor
The input of source electrode and described charging module collectively forms the power end of described power management chip；The output of described charging module
End constitutes the cell voltage end of described power management chip；
When described power supply interface module accesses charging unidirectional current, described charging unidirectional current is turned by described power supply interface module
Being connected to described charging module and the source electrode of described 4th field effect transistor, described charging module generates according to described charging unidirectional current and fills
Piezoelectric voltage is to be charged described battery, and described control module controls the 4th field effect transistor described in described driving module drive
Conducting, described 4th field effect transistor generates load voltage to be powered described load blocks according to described charging unidirectional current；
When described power supply interface module does not accesses described charging unidirectional current, described control module controls described driving module
Drive described 3rd field effect transistor to realize break-make according to preset switches dutycycle, and described control module drives described driving mould
Block controls the conducting of described voltage transformation module, and described voltage transformation module generates described load voltage with right according to described electric energy
Described load blocks is powered, and according to described electric energy generate portable power source voltage with to described portable power source interface module
The external load connected is powered；
Described control module generates the first switch controlling signal or second switch control signal, and described feedback module is according to institute
State load voltage and described first switch controlling signal drives described driving module to control described voltage transformation module and described the
Four field effect transistor are preset dutycycle by second and are realized break-make；Or described feedback module is according to described portable power source voltage and described
Second switch control signal drives described driving module to control described voltage transformation module and described 4th field effect transistor by the 3rd
Default dutycycle realizes break-make.
The present invention also provides for a kind of portable set, and it includes portable power source interface module, load blocks, power interface mould
Block, energy-storage travelling wave tube and battery, described portable set also includes above-mentioned power management chip.
The present invention provide technical scheme have the benefit that knowable to the invention described above, due to portable power source
Interface module, load blocks, power supply interface module, energy-storage travelling wave tube and battery connect, and described power management chip includes the 3rd
Field effect transistor, described energy-storage travelling wave tube is storage electric energy when described 3rd field effect transistor conducting, and stops exporting described electric energy；Described
Energy-storage travelling wave tube is release electric energy when described 3rd field effect transistor turns off, and described power management chip includes driving module, controlling mould
Block, charging module, feedback module, voltage transformation module and the 4th field effect transistor；；When power supply interface module accesses charging direct current
Electricity time, power supply interface module by charging unidirectional current be forwarded to charging module and the source electrode of the 4th field effect transistor, charging module according to
Charging unidirectional current generation charging voltage is to be charged battery, and control module controls to drive module drive the 4th field effect transistor
Conducting, the 4th field effect transistor generates load voltage to be powered load blocks according to charging unidirectional current；When power interface mould
When block does not accesses charging unidirectional current, control module controls to drive module drive the 3rd field effect transistor real according to preset switches dutycycle
Existing break-make, and the conducting of control module driving module control voltage transformation module, voltage transformation module is raw according to electric energy
Become load voltage so that load blocks is powered, and according to electric energy generate portable power source voltage with to portable power source interface mould
The external load that block connects is powered；Control module generates the first switch controlling signal or second switch control signal, feedback
Module drives module to control voltage transformation module and the 4th field effect transistor according to load voltage and the first switch controlling signal
Preset dutycycle by second and realize break-make；Or feedback module drives according to portable power source voltage and second switch control signal
Dynamic model block controls voltage transformation module and the 4th field effect transistor is preset dutycycle by the 3rd and realized break-make；Portable power source and load mould
Block shares an inductance, portable power source and loading functional and can work simultaneously, therefore, reduces system cost.
Accompanying drawing explanation
For the technical scheme being illustrated more clearly that in the embodiment of the present invention, in embodiment being described below required for make
Accompanying drawing be briefly described, it should be apparent that, below describe in accompanying drawing be only some embodiments of the present invention, for
From the point of view of those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to obtain other according to these accompanying drawings
Accompanying drawing.
Fig. 1 is a kind of function structure chart of prior art portable set；
Fig. 2 is the another kind of function structure chart of prior art portable set；
A kind of function structure chart of the power management chip that Fig. 3 provides for the embodiment of the present invention；
A kind of function structure chart of the feedback module in the power management chip that Fig. 4 provides for the embodiment of the present invention；
Driving module and the one of voltage transformation module in the power management chip that Fig. 5 provides for the embodiment of the present invention are shown
Example circuit structure diagram.
The another kind of function structure chart of the power management chip that Fig. 6 provides for the embodiment of the present invention；
A kind of function structure chart of the portable set that Fig. 7 provides for the embodiment of the present invention；
The another kind of function structure chart of the portable set that Fig. 8 provides for the embodiment of the present invention；
The another kind of function structure chart of the portable set that Fig. 9 provides for the embodiment of the present invention；
The another kind of function structure chart of the portable set that Figure 10 provides for the embodiment of the present invention；
A kind of exemplary circuit structure chart of the portable set that Figure 11 provides for the embodiment of the present invention.
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, right
The present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, and
It is not used in the restriction present invention.
Fig. 3 shows the modular structure of the power management chip of the portable set that the embodiment of the present invention provides, in order to just
In explanation, illustrate only the part relevant to the embodiment of the present invention, details are as follows:
A kind of power management chip 01, its with portable power source interface module 02, load blocks 03, power supply interface module 04,
Energy-storage travelling wave tube 05 and battery BAT connect, and power management chip includes the 3rd field effect transistor M3, and energy-storage travelling wave tube 05 is the 3rd effect
Electric energy should be stored during pipe M3 conducting, and stop exporting electric energy；Energy-storage travelling wave tube 05 is release electric energy when the 3rd field effect transistor M3 turns off,
Power management chip includes driving module 011, control module 012, charging module 013, feedback module 014, voltage transformation module
015 and the 4th field effect transistor M4.
Wherein, control module 012 controls end with the first control end of feedback module 014 and the second of feedback module 014
Connect, drive the first outfan of module 011 and the second outfan respectively with the first control end and electricity of voltage transformation module 015
Second control end of pressure modular converter 015 connects, and drives the 3rd outfan of module 011 and the grid of the 3rd field effect transistor M3 to connect
Connect, drive module 011 be connected with the grid of the 4th field effect transistor M4, driving module 011 the 3rd input and feedback module
The outfan module of 014 connects, the first input end driving module 011 and the second input driving module 011 respectively with control
Molding block 012 connects, the second outfan of voltage transformation module 015, the drain electrode of the 4th field effect transistor M4, feedback module 014
First input end collectively forms the load voltage outfan OUTFAN of power management chip；The input of voltage transformation module 015
Drain electrode with the 3rd field effect transistor M3 collectively forms the power tube drain electrode end SW of power management chip, voltage transformation module 015
The first input end of the first outfan and feedback module 014 collectively forms the supply voltage outfan VOUT of power management chip,
The source electrode of the 3rd field effect transistor M3 constitutes the earth terminal PGND of power management chip, the source electrode of the 4th field effect transistor M4 and charging mould
The input of block 013 collectively forms the power end VCC of power management chip；The outfan of charging module 013 constitutes power management
The battery BAT voltage end VBAT of chip.
In above-mentioned power management chip 01, when power supply interface module 04 accesses charging unidirectional current, power supply interface module
Charging unidirectional current is forwarded to charging module 013 and the source electrode of the 4th field effect transistor M4 by 04, and charging module 013 is according to charging direct current
Being electrically generated charging voltage to be charged battery BAT, control module 012 controls to drive module 011 to drive the 4th field effect transistor
The conducting of M4, the 4th field effect transistor M4 generates load voltage to be powered load blocks 03 according to charging unidirectional current；
When power supply interface module 04 does not accesses charging unidirectional current, control module 012 controls to drive module 011 to drive the 3rd
Field effect transistor M3 realizes break-make according to preset switches dutycycle, and control module 012 driving module 011 controls voltage and turns
The conducting of die change block 015, voltage transformation module 015 according to electric energy generate load voltage so that load blocks 03 is powered, and
Portable power source voltage is generated so that the external load being connected with portable power source interface module 02 to be powered according to electric energy；
Control module 012 generates the first switch controlling signal or second switch control signal, and feedback module 014 is according to load
Voltage and the first switch controlling signal drive module 011 to control voltage transformation module 015 and the 4th field effect transistor M4 by the
Two preset dutycycle realizes break-make；Or feedback module 014 drives according to portable power source voltage and second switch control signal
Dynamic model block 011 controls voltage transformation module 015 and the 4th field effect transistor M4 is preset dutycycle by the 3rd and realized break-make.
As shown in Figure 4, feedback module 014 includes first sampling module the 0141, second sampling module the 0142, first switching molding
Block 0143, second switch module 0144, operational amplifier 0145 and pulse width modulation module 0146.First sampling module 0141
Input is the first input end of feedback module 014, the outfan of the first sampling module 0141 and the first switch module 0143
Input connects, the first control end that control end is feedback module 014 of the first switch module 0143, the second sampling module 0142
The second input that input is feedback module 014, the outfan of the second sampling module 0142 and second switch module 0144
Input connect, second switch module 0144 control end be feedback module 014 second control end, operational amplifier 0145
Outfan, the outfan of second switch module 0144 and the input of pulse width modulation module 0146 with the first switch module 0143
End connects, and the outfan of pulse width modulation module 0146 is the outfan of feedback module 014.Open when control module 012 generates first
When closing control signal CTRL1, load voltage OUTFAN is sampled to generate the first sampled voltage by the first sampling module 0141
And send to operational amplifier 0145 through the first switch module 0143, the first sampled voltage is put by operational amplifier 0145
Greatly, pulse width modulation module 0146 drives module 011 to control voltage transformation module 015 according to the first sampled voltage after amplifying
Preset dutycycle with the 4th field effect transistor M4 by second and realize break-make；When control module 012 generates second switch control signal
During CTRL2, portable power source voltage VOUT is sampled to generate the second sampled voltage and through second by the second sampling module 0142
Switch module 0144 sends to operational amplifier 0145, and the second sampled voltage is amplified by operational amplifier 0145, and pulsewidth is adjusted
Molding block 0146 controls voltage transformation module 015 and the 4th according to the second sampled voltage driving module 011 after amplifying
Effect pipe M4 presets dutycycle by the 3rd and realizes break-make, and wherein pulse width modulation module 0146 inputs pulse-width signal PWM.
Fig. 5 shows the driving module 011 in the power management chip that the embodiment of the present invention provides and voltage transformation module
A kind of exemplary circuit structure of 015, for convenience of description, illustrate only the part relevant to the embodiment of the present invention, and details are as follows:
Drive module 011 include the first NAND gate U1, the second NAND gate U2, the 3rd NAND gate U3, the 4th NAND gate U4, the
Five NAND gate U5, the 6th NAND gate U6, the 7th NAND gate U7, the 8th NAND gate U8, the 9th NAND gate U9, the tenth NAND gate U10,
First nor gate X1, the second nor gate X2, the 3rd nor gate X3, the first phase inverter I1, the second phase inverter I2, the 3rd phase inverter
I3, the 4th phase inverter I4, the 5th field effect transistor M05, the 6th field effect transistor M06, the 7th field effect transistor M07, the 8th field effect transistor
M08, the 9th field effect transistor M09 and the tenth field effect transistor M10.
The input of the first phase inverter I1, the first input end of the second NAND gate U2, the first input of the 5th NAND gate U5
The first input end of end and the 6th NAND gate U6 is the first input end driving module 011, and the first of the first NAND gate U1 is defeated
The drain electrode entering end, the source electrode of the 5th field effect transistor M05 and the 6th field effect transistor M06 is the first outfan driving module 011,
Second input of the outfan of the first phase inverter I1 and the first NAND gate U1 connects, the second end of the second NAND gate U2, the 9th
The source electrode of field effect transistor M09 and the drain electrode of the tenth field effect transistor M10 are the second outfan driving module 011, and first with non-
The outfan of door U1 and the first input end of the 3rd NAND gate U3 connect, the outfan of the second NAND gate U2 and the 3rd NAND gate U3
Second input connect, the outfan of the 3rd NAND gate U3 and the first input end of the 4th NAND gate U4 and the first nor gate X1
First input end connect, the input of the second phase inverter I2, the first input end of the 3rd nor gate X3, the first nor gate X1
The first input end of the second input and the second nor gate X2 is the 3rd input driving module 011, the second phase inverter I2
Outfan and the input of the 4th phase inverter I4, the second input of the 4th NAND gate U4 and the input of the 3rd phase inverter I3
End connects, and the outfan of the 4th NAND gate U4 connects with the grid of the 7th field effect transistor M07, the outfan of the first nor gate X1 and
The grid of the 8th field effect transistor M08 connects, the first input end of the 9th NAND gate U9, the second input of the 6th NAND gate U6,
The source electrode of the 7th field effect transistor M07 and the drain electrode of the 8th field effect transistor M08 are the 3rd outfan driving module 011, the 4th
The outfan of phase inverter I4 and the first input end of the 8th NAND gate U8 connect, second input and the 9th of the 8th NAND gate U8
Second input of NAND gate U9 is the second input driving module 011, and the outfan and the tenth of the 8th NAND gate U8 is with non-
Door U10 first input end connect, the outfan of the 9th NAND gate U9 and the second input of the tenth NAND gate U10 and the 3rd or
Second input of not gate X3 connects, and the outfan of the tenth NAND gate U10 and the grid of the 5th field effect transistor M05 connect, and the 3rd
The outfan of nor gate X3 and the grid of the 6th field effect transistor M06, the outfan of the 3rd phase inverter I3 and the 5th NAND gate U5
Second input connects, and the outfan of the 5th NAND gate U5 and the first input end of the 7th NAND gate U7 connect, the 6th NAND gate
Second input of the outfan of U6 and the second input of the 7th NAND gate U7 and the second nor gate X2 connects, the 7th NAND gate
The grid of the outfan of U7 and the 9th field effect transistor M09 connects, the outfan of the second nor gate X2 and the tenth field effect transistor M10
Grid connects, and the drain electrode of the 5th field effect transistor M05 is connected with the first power supply, the drain electrode of the 7th field effect transistor M07 and second source
Connecting, the drain electrode of the 9th field effect transistor M09 is connected with the 3rd power supply, the source electrode of the 6th field effect transistor M06, the 8th field effect transistor
The source electrode of M08 and the source electrode of the tenth field effect transistor M10 are connected to power supply ground altogether.
Voltage transformation module 015 includes the first field effect transistor M1 and the second field effect transistor M2；The leakage of the first field effect transistor M1
The source electrode of pole and the second field effect transistor M2 is the input of voltage transformation module 015, and the drain electrode of the second field effect transistor M2 is voltage
First outfan of modular converter 015, the source electrode of the first field effect transistor M1 is the second outfan of voltage transformation module 015, the
The grid of one field effect transistor M1 is the first control end of voltage transformation module 015, and the grid of the second field effect transistor M2 is that voltage turns
Second control end of die change block 015.
Below in conjunction with operation principle to the driving module 011 in the power management chip shown in Fig. 5 and voltage transformation module
015 is described further:
The first input end input external load driving module 011 selects signal OUTSEL, and the first of driving module 011 is defeated
Enter to hold input load to select signal FANSEL, drive the first input end input pulse-width signal PWM of module 011；3rd is anti-
Phase device I3, the 5th NAND gate U5, the 6th NAND gate U6, the 7th NAND gate U7, the second nor gate X2, the 9th field effect transistor M09 with
And the tenth field effect transistor M10 select signal OUTSEL and pulse-width signal PWM to generate portable power source according to external load to control
Signal, the second field effect transistor M2 generates portable power source voltage VOUT according to portable power source control signal；4th phase inverter I4, the 8th
NAND gate U8, the 9th NAND gate U9, the tenth NAND gate U10, the 3rd nor gate X3, the 5th field effect transistor M05 and the 6th effect
Load control signal, the first field effect transistor M1 should be generated by pipe M6 according to load selection signal FANSEL and pulse-width signal PWM
Load voltage OUTFAN is generated according to load control signal.First nor gate X1, the 7th field effect transistor M07 and the 8th field effect
Pipe M8 generates pulse-width control signal according to pulse-width signal, to drive the 3rd field effect transistor M3 real according to preset switches dutycycle
Existing break-make, the 3rd field effect transistor M3 generates power tube drain signal SW.
In being embodied as, as shown in Figure 6, power management chip 01 can also include external load detection module 016；External
Load detecting module 016 is connected with supply voltage outfan and the control module 012 of power management chip；External load detection mould
Block 016 obtains portable power source voltage, and judges the connection status of external load according to portable power source voltage, and connection status is believed
Breath sends to control module 012；When connection state information is external load connection portable power source interface module 02, control module
012 drives module 011 to control the conducting of the second field effect transistor M2；When connection state information is that external load extracts mobile electricity
During source interface module 02, control module 012 drives module 011 to control the cut-off of the second field effect transistor M2.
Based on above-mentioned power management chip 01, the embodiment of the present invention also provides for a kind of portable set, as it is shown in fig. 7,
Portable set includes portable power source interface module 02, load blocks 03, power supply interface module 04, energy-storage travelling wave tube 05 and battery
BAT, portable set also include above-mentioned power management chip 01,.Portable set can be Portable fan.
In being embodied as, as shown in Figure 8, portable set can also include key-press module 06；The output of key-press module 06
End is connected with control module 012；The operation output key instruction that key-press module 06 sends according to user, control module 012 basis
Key command drives module 011 to control voltage transformation module and closes or preset dutycycle by the 4th and realize break-make.
In being embodied as, as it is shown in figure 9, portable set can also include the first indicating module 07 and the second indicating module
08；The first input end of the first indicating module 07 is connected with the input/output terminal of power supply interface module 04, the first indicating module 07
The second input be connected with control module 012, the input of the second indicating module 08 is connected with control module 012；Work as power supply
When interface module 04 does not accesses charging unidirectional current, the first indicating module 07 indicates according to charging unidirectional current；Control module 012
Generating indication signal according to key command, the second indicating module indicates according to indication signal.
In being embodied as, as shown in Figure 10, portable set can also include the first filtration module 09 and the second filtering mould
Block 10；The filtering end of the first filtration module 09 and the first end of energy-storage travelling wave tube 05 and the power tube drain electrode end of power management chip 01
Connect, filtering end and the second end of energy-storage travelling wave tube 05, the positive pole of battery BAT and the power management chip of the second filtration module 10
The battery BAT voltage end of 01 connects.
Figure 11 shows a kind of exemplary circuit structure of the portable set that the embodiment of the present invention provides, for the ease of saying
Bright, illustrate only the part relevant to the embodiment of the present invention, details are as follows:
First indicating module 07 include first LED the 1, second LED the 2, first resistance R1 with
And the second resistance R2；
First end of the first resistance R1 is the first input end of the first indicating module 07, second end of the first resistance R1 and
The positive pole of one LED 1 connects, and the negative pole of the first LED 1 and first end of the second resistance R2 are first
Second input of indicating module 07, second end of the second resistance R2 and the positive pole of the second LED 2 connect, and second
The negative pole of LED 2 is connected with power supply ground；
Second indicating module 08 includes the 3rd LED the 3, the 4th LED the 4, the 5th light-emitting diodes
Pipe LED5 and the 6th LED 6；
The positive pole of the 3rd LED 3, the positive pole of the 4th LED 4, the 5th LED 5
Positive pole and the positive pole of the 6th LED 6 collectively form the input of the second indicating module 08, the 3rd light-emitting diodes
The negative pole of pipe LED3, the negative pole of the 4th LED 4, the negative pole of the 5th LED 5 and the 6th luminescence two
The negative pole of pole pipe LED6 is connected to power supply ground altogether.
First filtration module 09 includes the first electric capacity C1；First end of the first electric capacity C1 is the filter stating the first filtration module 09
Ripple end, second end of the first electric capacity C1 is connected with power supply ground；
Second filtration module 10 includes the second electric capacity C2 and the 3rd electric capacity C3；First end of the second electric capacity C2 and the 3rd electric capacity
First end of C3 is the filtering end stating the second filtration module 10, second end of the second electric capacity C2 and second end of the 3rd electric capacity C3 with
Power supply ground connects.
Portable power source interface module 02 includes the first USB interface J1 and the 4th electric capacity C4；
First end of the power end VCC and the 4th electric capacity C4 of the first USB interface J1 is the defeated of portable power source interface module 02
Entering outfan, second end of the earth terminal GND and the 4th electric capacity C4 of the first USB interface J1 is connected to power supply ground altogether.
Load blocks 03 includes loading F1, the 5th electric capacity C5 and the 6th electric capacity C6；
First end of load first end of F1, first end of the 5th electric capacity C5 and the 6th electric capacity C6 is load blocks 03
Input, second end of load second end of F1, second end of the 5th electric capacity C5 and the 6th electric capacity C6 is connected to power supply ground altogether.
Power supply interface module 04 includes secondary USB interface J2 and the 7th electric capacity C7；
The input that first end is power supply interface module 04 of the power end VCC and the 7th electric capacity C7 of secondary USB interface J2 is defeated
Going out end, second end of the earth terminal GND and the 7th electric capacity C7 of secondary USB interface J2 is connected to power supply ground altogether.
Energy-storage travelling wave tube 05 is inductance L1.
Key-press module 06 includes the outfan that the first end is key-press module 06 of button K1, button K1, the second of button K1
Hold and be connected with power supply ground.
Below in conjunction with operation principle, the internal drive of the portable set shown in Fig. 4 is described further:
In specific implementation process, energy-storage travelling wave tube 05 is storage electric energy when the 3rd field effect transistor M3 conducting, and stops output
Electric energy；Energy-storage travelling wave tube 05 is release electric energy when the 3rd field effect transistor M3 turns off.
In above-mentioned power management chip 01, when the power end VCC of secondary USB interface J2 accesses charging unidirectional current, the
Charging unidirectional current is forwarded to charging module 013 and the source electrode of the 4th field effect transistor M4, charging module 013 by two USB interface J2
Generating charging voltage to be charged battery BAT according to charging unidirectional current, control module 012 controls to drive module 011 to drive the
The conducting of four field effect transistor M4, the 4th field effect transistor M4 generates load voltage to supply load F1 according to charging unidirectional current
Electricity.
When the power end VCC of secondary USB interface J2 does not accesses charging unidirectional current, control module 012 controls to drive module
011 drives the 3rd field effect transistor M3 to realize break-make according to preset switches dutycycle, and control module 012 drives module
011 conducting controlling voltage transformation module 015, voltage transformation module 015 generates load voltage to enter load F1 according to electric energy
Row power supply, and generate portable power source voltage so that the external load being connected with the first USB interface J1 to be powered according to electric energy.
Control module 012 generates the first switch controlling signal or second switch control signal, and feedback module 014 is according to load
Voltage and the first switch controlling signal drive module 011 to control voltage transformation module 015 and the 4th field effect transistor M4 by the
Two preset dutycycle realizes break-make；Or feedback module 014 drives according to portable power source voltage and second switch control signal
Dynamic model block 011 controls voltage transformation module 015 and the 4th field effect transistor M4 is preset dutycycle by the 3rd and realized break-make.
In sum, the embodiment of the present invention by with portable power source interface module, load blocks, power supply interface module, storage
Energy element and battery connect, and described power management chip includes the 3rd field effect transistor, and described energy-storage travelling wave tube is at described 3rd
Storage electric energy during the conducting of effect pipe, and stop exporting described electric energy；Described energy-storage travelling wave tube is when described 3rd field effect transistor turns off
Release electric energy, described power management chip includes driving module, control module, charging module, feedback module, voltage transformation module
And the 4th field effect transistor；；When power supply interface module accesses charging unidirectional current, power supply interface module will charging unidirectional current switching
To charging module and the source electrode of the 4th field effect transistor, charging module generates charging voltage to carry out battery according to charging unidirectional current
Charging, control module controls to drive the conducting of module drive the 4th field effect transistor, and the 4th field effect transistor is raw according to charging unidirectional current
Become load voltage so that load blocks to be powered；When power supply interface module does not accesses charging unidirectional current, control module controls
Drive module drive the 3rd field effect transistor to realize break-make according to preset switches dutycycle, and control module drives module control
The conducting of voltage transformation module processed, voltage transformation module according to electric energy generate load voltage so that load blocks is powered, and
Portable power source voltage is generated so that the external load being connected with portable power source interface module to be powered according to electric energy；Control module
Generating the first switch controlling signal or second switch control signal, feedback module is according to load voltage and the first switch controlling signal
Drive module to control voltage transformation module and the 4th field effect transistor is preset dutycycle by second and realized break-make；Or feedback mould
Tuber drives module to control voltage transformation module and the 4th field effect according to portable power source voltage and second switch control signal
Pipe is preset dutycycle by the 3rd and is realized break-make；Portable power source and load blocks share an inductance, portable power source and loading functional
Can work simultaneously, therefore, reduce system cost.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all essences in the present invention
Any amendment, equivalent and the improvement etc. made within god and principle, should be included within the scope of the present invention.
Claims (10)
1. a power management chip, its with portable power source interface module, load blocks, power supply interface module, energy-storage travelling wave tube with
And battery connects, described power management chip includes the 3rd field effect transistor, and described energy-storage travelling wave tube is led in described 3rd field effect transistor
Storage electric energy time logical, and stop exporting described electric energy；Described energy-storage travelling wave tube is release electric energy when described 3rd field effect transistor turns off,
It is characterized in that, described power management chip includes driving module, control module, charging module, feedback module, voltage modulus of conversion
Block and the 4th field effect transistor；
First control end of described control module and described feedback module and the second control end of feedback module are connected, described in drive
First outfan of dynamic model block and described second outfan turn with the first of described voltage transformation module the control end and voltage respectively
Second control end of die change block connects, and the 3rd outfan of described driving module is connected with the grid of described 3rd field effect transistor,
Described driving module is connected with the grid of described 4th field effect transistor, the 3rd input of described driving module and described feedback mould
The outfan module of block connects, the first input end of described driving module and the second input of described driving module respectively with control
Molding block connects, the second outfan of described voltage transformation module, the drain electrode of described 4th field effect transistor, described feedback module
First input end collectively forms the load voltage outfan of described power management chip；The input of described voltage transformation module and
The drain electrode of described 3rd field effect transistor collectively forms the power tube drain electrode end of described power management chip, described voltage transformation module
The first outfan and the first input end of described feedback module collectively form the supply voltage output of described power management chip
End, the source electrode of described 3rd field effect transistor constitutes the earth terminal of described power management chip, the source electrode of described 4th field effect transistor
With the power end that the input of described charging module collectively forms described power management chip；The outfan structure of described charging module
Become the cell voltage end of described power management chip；
When described power supply interface module accesses charging unidirectional current, described charging unidirectional current is forwarded to by described power supply interface module
Described charging module and the source electrode of described 4th field effect transistor, described charging module generates charged electrical according to described charging unidirectional current
Pressure is to be charged described battery, and described control module controls leading of the 4th field effect transistor described in described driving module drive
Logical, described 4th field effect transistor generates load voltage to be powered described load blocks according to described charging unidirectional current；
When described power supply interface module does not accesses described charging unidirectional current, described control module controls described driving module drive
Described 3rd field effect transistor realizes break-make according to preset switches dutycycle, and described control module drives described driving module control
Making the conducting of described voltage transformation module, described voltage transformation module generates described load voltage with to described according to described electric energy
Load blocks is powered, and generates portable power source voltage to be connected with described portable power source interface module according to described electric energy
External load be powered；
Described control module generates the first switch controlling signal or second switch control signal, and described feedback module is according to described negative
Carry voltage and described first switch controlling signal drives described driving module to control described voltage transformation module and described 4th
Effect pipe is preset dutycycle by second and is realized break-make；Or described feedback module is according to described portable power source voltage and described second
Switch controlling signal drives described driving module to control described voltage transformation module and described 4th field effect transistor and presets by the 3rd
Dutycycle realizes break-make.
2. power management chip as claimed in claim 1, it is characterised in that described voltage transformation module includes the first field effect
Pipe and the second field effect transistor；
The drain electrode of described first field effect transistor and the input that source electrode is described voltage transformation module of described second field effect transistor,
First outfan that drain electrode is described voltage transformation module of described second field effect transistor, the source electrode of described first field effect transistor is
Second outfan of described voltage transformation module, the grid is described voltage transformation module first control of described first field effect transistor
End processed, the grid is described voltage transformation module second control end of described second field effect transistor.
3. power management chip as claimed in claim 2, it is characterised in that described power management chip also includes external load
Detection module；
Described external load detection module is connected with supply voltage outfan and the described control module of described power management chip；
Described external load detection module obtain described portable power source voltage, and according to described portable power source voltage judge described outside
Connect the connection status of load, and connection state information is sent to described control module；When described connection state information is described
When external load connects described portable power source interface module, described control module drives described driving module to control described second
The conducting of effect pipe；When described connection state information be described external load extract described portable power source interface module time, described
Control module drives described driving module to control the cut-off of described second field effect transistor.
4. power management chip as claimed in claim 1, it is characterised in that described feedback module include the first sampling module,
Second sampling module, the first switch module, second switch module, operational amplifier and pulse width modulation module；
The first input end that input is described feedback module of described first sampling module, the output of described first sampling module
End is connected with the input of described first switch module, and the end that controls of described first switch module is the first of described feedback module
Control end, second input that input is described feedback module of described second sampling module, described second sampling module
Outfan is connected with the input of described second switch module, and the end that controls of described second switch module is described feedback module
Second controls end, described operational amplifier and the outfan of described first switch module, the outfan of described second switch module
And the input of described pulse width modulation module connects, the outfan of described pulse width modulation module is the output of described feedback module
End；
When described control module generates the first switch controlling signal, described load voltage is adopted by described first sampling module
Sample is to generate the first sampled voltage and to send to described operational amplifier, described operational amplifier pair through described first switch module
Described first sampled voltage is amplified, and described pulse width modulation module drives described according to described first sampled voltage after amplifying
Drive module to control described voltage transformation module and described 4th field effect transistor is preset dutycycle by second and realized break-make；
When described control module generates second switch control signal, described portable power source voltage is entered by described second sampling module
Row sampling is to generate the second sampled voltage and to send to described operational amplifier, described operation amplifier through described second switch module
Described second sampled voltage is amplified by device, and described pulse width modulation module drives according to described second sampled voltage after amplifying
Described driving module controls described voltage transformation module and described 4th field effect transistor is preset dutycycle by the 3rd and realized break-make.
5. power management chip as claimed in claim 1, it is characterised in that described driving module include the first NAND gate, the
Two NAND gate, the 3rd NAND gate, the 4th NAND gate, the 5th NAND gate, the 6th NAND gate, the 7th NAND gate, the 8th NAND gate,
Nine NAND gate, the tenth NAND gate, the first nor gate, the second nor gate, the 3rd nor gate, the first phase inverter, the second phase inverter,
Three phase inverters, the 4th phase inverter, the 5th field effect transistor, the 6th field effect transistor, the 7th field effect transistor, the 8th field effect transistor, the 9th
Field effect transistor and the tenth field effect transistor；
The input of described first phase inverter, the first input end of described second NAND gate, described 5th NAND gate first defeated
Enter end and the first input end that first input end is described driving module of described 6th NAND gate, described first NAND gate
That the drain electrode of first input end, the source electrode of described 5th field effect transistor and described 6th field effect transistor is described driving module
One outfan, the outfan of described first phase inverter is connected with the second input of described first NAND gate, and described second with non-
That the drain electrode of the second end, the source electrode of described 9th field effect transistor and described tenth field effect transistor of door is described driving module
Two outfans, the outfan of described first NAND gate is connected with the first input end of described 3rd NAND gate, and described second with non-
Door outfan is connected with the second input of described 3rd NAND gate, the outfan of described 3rd NAND gate and the described 4th and
The first input end of the first input end of not gate and described first nor gate connects, the input of described second phase inverter, described
First input of the first input end of the 3rd nor gate, the second input of described first nor gate and described second nor gate
End is the 3rd input of described driving module, the input of the outfan of described second phase inverter and described 4th phase inverter,
Second input of described 4th NAND gate and the input of described 3rd phase inverter connect, the output of described 4th NAND gate
End is connected with the grid of described 7th field effect transistor, the outfan of described first nor gate and the grid of described 8th field effect transistor
Connect, the first input end of described 9th NAND gate, the second input of described 6th NAND gate, described 7th field effect transistor
Source electrode and the 3rd outfan that drain electrode is described driving module of described 8th field effect transistor, the output of described 4th phase inverter
End is connected with the first input end of described 8th NAND gate, the second input of described 8th NAND gate and described 9th NAND gate
The second input that the second input is described driving module, the outfan of described 8th NAND gate and described tenth NAND gate
First input end connect, the outfan of described 9th NAND gate and second input and the described 3rd of described tenth NAND gate
Second input of nor gate connects, and the outfan of described tenth NAND gate is connected with the grid of described 5th field effect transistor, institute
State the outfan of the 3rd nor gate and the grid of described 6th field effect transistor, the outfan and the described 5th of described 3rd phase inverter
Second input of NAND gate connects, and the outfan of described 5th NAND gate connects with the first input end of described 7th NAND gate
Connecing, the outfan of described 6th NAND gate is defeated with the second of the second input of described 7th NAND gate and described second nor gate
Entering end to connect, the outfan of described 7th NAND gate is connected with the grid of described 9th field effect transistor, described second nor gate
Outfan is connected with the grid of described tenth field effect transistor, and the drain electrode of described 5th field effect transistor is connected with the first power supply, described
The drain electrode of the 7th field effect transistor is connected with second source, and the drain electrode of described 9th field effect transistor is connected with the 3rd power supply, and described
The source electrode of the source electrode of six field effect transistor, the source electrode of described 8th field effect transistor and described tenth field effect transistor is connected to power supply altogether
Ground.
6. a portable set, it include portable power source interface module, load blocks, power supply interface module, energy-storage travelling wave tube with
And battery, it is characterised in that described portable set also includes the power management chip as described in claim 1 to 5.
7. portable set as claimed in claim 6, it is characterised in that described portable set also includes key-press module；
The outfan of described key-press module is connected with described control module；
The operation output key instruction that described key-press module sends according to user, described control module is driven according to described key command
The dynamic described driving module described voltage transformation module of control is closed or is preset dutycycle by the 4th and realizes break-make.
8. portable set as claimed in claim 7, it is characterised in that described portable set also includes the first indicating module
With the second indicating module；
The first input end of described first indicating module is connected with the input/output terminal of described power supply interface module, and described first refers to
Showing that the second input of module is connected with described control module, the input of described second indicating module is with described control module even
Connect；
When described power supply interface module does not accesses described charging unidirectional current, described first indicating module is according to described charging direct current
Electricity indicates；Described control module generates indication signal according to described key command, and described second indicating module is according to instruction
Signal indicates.
9. portable set as claimed in claim 8, it is characterised in that described first indicating module includes the first light-emitting diodes
Pipe, the second light emitting diode, the first resistance and the second resistance；
First end of described first resistance is the first input end of described first indicating module, the second end of described first resistance with
The positive pole of described first light emitting diode connects, and the negative pole of described first light emitting diode and the first end of described second resistance are
Second input of described first indicating module, the second end of described second resistance connects with the positive pole of described second light emitting diode
Connecing, the negative pole of described second light emitting diode is connected with power supply ground；
Described second indicating module includes the 3rd light emitting diode, the 4th light emitting diode, the 5th light emitting diode and the 6th
Light emitting diode；
The positive pole of described 3rd light emitting diode, the positive pole of described 4th light emitting diode, described 5th light emitting diode are just
The positive pole of pole and described 6th light emitting diode collectively forms the input of described second indicating module, described 3rd luminescence two
The negative pole of pole pipe, the negative pole of described 4th light emitting diode, the negative pole of described 5th light emitting diode and the described 6th are luminous
The negative pole of diode is connected to power supply ground altogether.
10. portable set as claimed in claim 6, it is characterised in that described portable set also includes the first filtering mould
Block and the second filtration module；
The filtering end of described first filtration module and the first end of described energy-storage travelling wave tube and the power tube of described power management chip
Drain electrode end connects, filtering end and second end of described energy-storage travelling wave tube of described second filtration module, the positive pole of described battery and
The cell voltage end of described power management chip connects；
Described first filtration module includes the first electric capacity；First end of described first electric capacity is the filtering of described first filtration module
End, the second end of described first electric capacity is connected with power supply ground；
Described second filtration module includes the second electric capacity and the 3rd electric capacity；First end of described second electric capacity and described 3rd electric capacity
The filtering end that the first end is described second filtration module, the second end of described second electric capacity and the second end of described 3rd electric capacity
With power supply be connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610762807.8A CN106200856B (en) | 2016-08-30 | 2016-08-30 | Portable equipment and power management chip thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610762807.8A CN106200856B (en) | 2016-08-30 | 2016-08-30 | Portable equipment and power management chip thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106200856A true CN106200856A (en) | 2016-12-07 |
| CN106200856B CN106200856B (en) | 2023-01-20 |
Family
ID=58089840
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610762807.8A Active CN106200856B (en) | 2016-08-30 | 2016-08-30 | Portable equipment and power management chip thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106200856B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107507561A (en) * | 2017-09-27 | 2017-12-22 | 宗仁科技(平潭)有限公司 | A kind of LED control chips and LED information display system |
| CN110783997A (en) * | 2019-11-30 | 2020-02-11 | 深圳市华思旭科技有限公司 | Battery protection circuit and battery discharging device |
| CN111684682A (en) * | 2020-04-28 | 2020-09-18 | 武文静 | Micro-energy acquisition chip, equipment and control method thereof |
| CN111708425A (en) * | 2020-05-22 | 2020-09-25 | 广州裕芯电子科技有限公司 | Portable fan control chip, circuit and method integrating indication function |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204244080U (en) * | 2014-11-10 | 2015-04-01 | 成都瑞途电子有限公司 | A kind of power switch circuit of radio-frequency card |
| WO2015117476A1 (en) * | 2014-07-24 | 2015-08-13 | 中兴通讯股份有限公司 | Power supply control device and method for communication network |
| CN204808191U (en) * | 2015-06-16 | 2015-11-25 | 无锡中星微电子有限公司 | Terminal equipment's supply circuit |
| JP2016111724A (en) * | 2014-12-02 | 2016-06-20 | 株式会社東芝 | Dc power supply device |
| CN105846503A (en) * | 2016-05-16 | 2016-08-10 | 深圳市富满电子集团股份有限公司 | Portable device and internal driving device therefor |
| CN206258814U (en) * | 2016-08-30 | 2017-06-16 | 深圳市富满电子集团股份有限公司 | A kind of portable set and its power management chip |
-
2016
- 2016-08-30 CN CN201610762807.8A patent/CN106200856B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015117476A1 (en) * | 2014-07-24 | 2015-08-13 | 中兴通讯股份有限公司 | Power supply control device and method for communication network |
| CN204244080U (en) * | 2014-11-10 | 2015-04-01 | 成都瑞途电子有限公司 | A kind of power switch circuit of radio-frequency card |
| JP2016111724A (en) * | 2014-12-02 | 2016-06-20 | 株式会社東芝 | Dc power supply device |
| CN204808191U (en) * | 2015-06-16 | 2015-11-25 | 无锡中星微电子有限公司 | Terminal equipment's supply circuit |
| CN105846503A (en) * | 2016-05-16 | 2016-08-10 | 深圳市富满电子集团股份有限公司 | Portable device and internal driving device therefor |
| CN206258814U (en) * | 2016-08-30 | 2017-06-16 | 深圳市富满电子集团股份有限公司 | A kind of portable set and its power management chip |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107507561A (en) * | 2017-09-27 | 2017-12-22 | 宗仁科技(平潭)有限公司 | A kind of LED control chips and LED information display system |
| CN107507561B (en) * | 2017-09-27 | 2022-12-13 | 宗仁科技(平潭)有限公司 | LED control chip and LED system |
| CN110783997A (en) * | 2019-11-30 | 2020-02-11 | 深圳市华思旭科技有限公司 | Battery protection circuit and battery discharging device |
| CN111684682A (en) * | 2020-04-28 | 2020-09-18 | 武文静 | Micro-energy acquisition chip, equipment and control method thereof |
| CN111684682B (en) * | 2020-04-28 | 2023-06-02 | 武文静 | Micro-energy acquisition chip, micro-energy acquisition equipment and control method of micro-energy acquisition chip |
| CN111708425A (en) * | 2020-05-22 | 2020-09-25 | 广州裕芯电子科技有限公司 | Portable fan control chip, circuit and method integrating indication function |
| CN111708425B (en) * | 2020-05-22 | 2022-11-15 | 广州裕芯电子科技有限公司 | Portable fan control chip integrated with indication function, circuit and method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106200856B (en) | 2023-01-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101827480B (en) | LED drive control circuit | |
| CN202121024U (en) | Heating circuit of battery | |
| CN106160418B (en) | A kind of control method of Switching Power Supply | |
| CN106200856A (en) | A kind of portable set and power management chip thereof | |
| CN104518728A (en) | Motor driving apparatus | |
| CN106130343A (en) | A kind of step-up/step-down circuit | |
| CN107809830A (en) | A kind of Buck boost LED drive circuits | |
| CN201698966U (en) | Electronic switch | |
| CN103715871A (en) | High-power MOSFET driving circuit | |
| CN101753081A (en) | Fan drive circuit and fan using same | |
| CN103715870B (en) | Voltage adjuster and resonant gate driver thereof | |
| CN102904329A (en) | Power supply management circuit | |
| CN110445375A (en) | A kind of three port DC/DC converters of high-power charging | |
| CN206258814U (en) | A kind of portable set and its power management chip | |
| CN104883057A (en) | Mobile power converter of boost and linear charging shared power device | |
| CN204215966U (en) | Relay drive circuit and relay | |
| CN105846503B (en) | A kind of portable device and its internal drive | |
| CN209389936U (en) | A kind of Boost rapid pressure circuit of solenoid-driven | |
| CN216216520U (en) | High-voltage power supply control system for synchronous rectification | |
| CN205829204U (en) | A kind of portable set and internal drive thereof | |
| CN217063266U (en) | Current backflow prevention circuit applied to battery detection equipment | |
| CN206195385U (en) | Charging circuit | |
| CN214789293U (en) | Water valve control circuit and intelligent water valve | |
| CN202931193U (en) | Buck switching power supply circuit | |
| CN204721218U (en) | Boosting and linear-charging share the portable power source transducer of power device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 518000 1701, building 1, Shenzhen new generation industrial park, 136 Zhongkang Road, Meidu community, Meilin street, Futian District, Shenzhen City, Guangdong Province Applicant after: Fuman microelectronics Group Co.,Ltd. Address before: Unit b7-b8, 9 / F, Yanxiang science and technology building, 31 Gaoxin Zhongsi Road, Nanshan District, Shenzhen, Guangdong 518000 Applicant before: FINE MADE MICROELECTRONICS GROUP CO.,LTD. |
|
| CB02 | Change of applicant information | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 518000, Building 101, Fuman Microelectronics Group Co., Ltd., Intersection of Renmin East Road and Shouhe Road, Jinsha Community, Kengzi Street, Pingshan District, Shenzhen City, Guangdong Province Patentee after: Fuman microelectronics Group Co.,Ltd. Country or region after: China Address before: 518000 1701, building 1, Shenzhen new generation industrial park, 136 Zhongkang Road, Meidu community, Meilin street, Futian District, Shenzhen City, Guangdong Province Patentee before: Fuman microelectronics Group Co.,Ltd. Country or region before: China |
|
| CP03 | Change of name, title or address |