CN101414753A - Mobile communication apparatus with current-limiting charge function - Google Patents
Mobile communication apparatus with current-limiting charge function Download PDFInfo
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- CN101414753A CN101414753A CNA200710047220XA CN200710047220A CN101414753A CN 101414753 A CN101414753 A CN 101414753A CN A200710047220X A CNA200710047220X A CN A200710047220XA CN 200710047220 A CN200710047220 A CN 200710047220A CN 101414753 A CN101414753 A CN 101414753A
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- current
- charging circuit
- mobile communications
- communications device
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The present invention relates to a mobile communication device with current-limited charging function, which consists of an energy storage unit, a first power connector, a first charging circuit, a second power connector and a second charging circuit. The first charging circuit is electrically connected with the first power connector and the energy storage unit and the maximum current of the first charging circuit is not more than a set value; the second charging circuit is electrically connected with the second power connector and the energy storage unit and the maximum current of the second charging circuit is more than the set value. The mobile communication device with current-limited charging function adopts the structure; therefore, when the charging is carried out through different chargers, the mobile communication device can start the corresponding charging circuit according to the current range provided by the charger so as to prevent different charging currents from damaging the mobile communication device.
Description
Technical field
The present invention relates to the mobile communication technology field, the particularly charging mechanism technical field of mobile communications device is especially in regard to a kind of mobile communications device with current-limiting charge function.
Background technology
Please refer to Figure 1 and Figure 2, general portable electronic devices for example mobile communications device, action personal assistant, action AV device etc. comprises in order to the power connector that energy-storage units is charged: one is common specification power connector 12, it is arranged on the mobile communications device 1 and electrically connects with externally fed unit P, and common externally fed unit P normally cradle, travelling with charger or vehicle charger etc.; Another kind then is universal serial bus (USB) power connector 11, it also is arranged on the mobile communications device 1, but the externally fed unit that electrically connects with USB power connector 11 then is a computer 2, and the USB interface 21 by computer 2 is to be electrically connected at USB power connector 11.
Yet based on the consideration of fail safe, the current range that externally fed unit P general and specification power connector 12 electric connections usually are provided is higher than the computer 2 that is electrically connected at USB power connector 11.For instance, when USB power connector 11 and computer 2 electrically connect so that mobile communications device 1 is charged, the maximum current flow that inputs to mobile communications device 1 is generally 500 milliamperes (mA), damages because of the excessive magnitude of current with the USB interface 21 of avoiding computer 2 and the USB power connector 11 of mobile communications device 1.And when charging, can't be charged to enough capacitances to the energy-storage units 15 of mobile communications device 1 fast by single charging circuit 13 with the charging current that is not more than 500 milliamperes, cause charging efficiency not good.
Therefore, how to provide a kind of mobile communications device, can solve the problem that known techniques meets with, become one of important topic with current-limiting charge function.
Summary of the invention
The objective of the invention is to have overcome above-mentioned shortcoming of the prior art, a kind of mobile communications device with current-limiting charge function is provided, two kinds of charging circuits with different magnitude of current restrictions are separated setting, make mobile communications device open corresponding charging circuit according to the current range that charger provides, reach preferable charging efficiency, and avoid charging current to undermine mobile communications device.
Another object of the present invention is for providing a kind of mobile communications device with current-limiting charge function, and the magnitude of current of charging can meet legal safety requirements (safety specification).
In order to realize above-mentioned purpose, the mobile communications device with current-limiting charge function of the present invention has following formation:
This has the mobile communications device of current-limiting charge function, and its main feature is to comprise:
One energy-storage units;
One first power connector;
One first charging circuit electrically connect with this first power connector and this energy-storage units, and the maximum current flow of this first charging circuit is not more than a set point;
One second source connector; And
One second charging circuit electrically connect with this second source connector and this energy-storage units, and the maximum current flow of this second charging circuit is greater than this set point.
This mobile communications device with current-limiting charge function more comprises:
One control unit electrically connects with this first charging circuit and this second charging circuit.
This control unit with mobile communications device of current-limiting charge function is exported a controlling signal and is opened this first charging circuit or this second charging circuit.
This mobile communications device with current-limiting charge function more comprises:
One first switch element is electrically connected between this first power connector and this first charging circuit.
This mobile communications device with current-limiting charge function more comprises:
One second switch unit is electrically connected between this second source connector and this second charging circuit.
This first switch element and/or this second switch unit with mobile communications device of current-limiting charge function is a single-pole double-throw switch (SPDT).
This mobile communications device with current-limiting charge function more comprises:
One control unit electrically connects with this first switch element and this second switch unit.
This control unit with mobile communications device of current-limiting charge function is exported this first switch element of a controlling signal On/Off and this second diverter switch.
This first switch element and this second switch unit with mobile communications device of current-limiting charge function can not opened simultaneously.
This controlling signal with mobile communications device of current-limiting charge function is exported by two general input/output terminals of this control unit.
This first power connector with mobile communications device of current-limiting charge function is a USB connector.
This second source connector with mobile communications device of current-limiting charge function is standard charging device connector, traveling charger connector or vehicle charger connector.
This set point with mobile communications device of current-limiting charge function is 500 milliamperes.
This has the mobile communications device of current-limiting charge function, receives an input power supply, and its main feature is to comprise:
One energy-storage units;
One first charging circuit electrically connect with this energy-storage units, and the maximum current flow of this first charging circuit is not more than a set point;
One second charging circuit electrically connect with this energy-storage units, and the maximum current flow of this second charging circuit is greater than this set point;
One power connector receives this input power supply;
One switches switch, electrically connects with this power connector, this first charging circuit and this second charging circuit; And
One control unit electrically connects with this diverter switch, exports a controlling signal according to the magnitude of current of this input power supply and switches this diverter switch.
This controlling signal with mobile communications device of current-limiting charge function is exported by two general input/output terminals of this control unit.
This power connector with mobile communications device of current-limiting charge function is selected from the group that USB connector, standard charging device connector, traveling charger connector and vehicle charger connector are constituted.
This set point with mobile communications device of current-limiting charge function is 500 milliamperes.
This diverter switch with mobile communications device of current-limiting charge function is a single-pole double-throw switch (SPDT).
Adopted the mobile communications device with current-limiting charge function of this invention, because by the charging circuit of different magnitude of current restrictions independently is set, and can be according to the user demand of safe charging or quick charge, make mobile communications device open corresponding charging circuit according to the current range that charger provides, to reach safety or charging efficiency fast, avoid charging current to undermine mobile communications device or charge efficiency is not good; And set point can be adjusted according to legal safety requirements; In addition, power connector can corresponding different charging circuit and is separated setting, also can be integrated into the single power supply connector, and open corresponding charging circuit by control unit and switch element, thereby can reach preferable charging efficiency,, the magnitude of current of charging can meet legal safety requirements (safety specification), and avoids charging current to undermine mobile communications device.
Description of drawings
Fig. 1 is the surface structure schematic diagram of mobile communications device of the prior art.
Fig. 2 is the circuit box schematic diagram of mobile communications device inside in the prior art.
Fig. 3 is a kind of schematic diagram with mobile communications device of current-limiting charge function of the first embodiment of the present invention.
Fig. 4 and Fig. 5 have the calcspar that different structure is provided with for the mobile communications device of Fig. 3.
Fig. 6 is a kind of schematic diagram with mobile communications device of current-limiting charge function of the second embodiment of the present invention.
Fig. 7 and Fig. 8 have the calcspar that different structure is provided with for the mobile communications device of Fig. 6.
Embodiment
Hereinafter with reference to correlative type, a kind of mobile communications device with current-limiting charge function according to preferred embodiment of the present invention is described, wherein identical assembly will be illustrated with identical element numbers.
First embodiment
Please refer to Fig. 3 and shown in Figure 4, a kind of mobile communications device 3 with current-limiting charge function of first embodiment of the invention comprises one first power connector 31, a second source connector 32, one first charging circuit 33, one second charging circuit 34 and an energy-storage units 35.First power connector 31 and one first power supply unit P1 electrically connect, and to receive the electric energy of first power supply unit P1 input, are resent to 35 chargings of 33 pairs of energy-storage units of first charging circuit.Second source connector 32 and one second power supply unit P2 electrically connect, and to receive the electric energy of second power supply unit P2 input, are resent to 35 chargings of 34 pairs of energy-storage units of second charging circuit.Wherein, the magnitude of current difference of the first power supply unit P1 and the second power supply unit P2, and the maximum current flow of the second power supply unit P2 is greater than the maximum current flow of the first power supply unit P1.
Please refer to shown in Figure 5ly, the mobile communications device with current-limiting charge function of the present invention can have different structure aspect is set.Mobile communications device 3 more comprises one first switch element 381 and a second switch unit 382.First switch element 381 is electrically connected between first power connector 31 and first charging circuit 33, and electrically connects with control unit 36.Second switch unit 382 is electrically connected between the second source connector 32 and second charging circuit 34, and electrically connects with control unit 36.
When first power connector 31 and second source connector 32 did not electrically connect with the first power supply unit P1, the second power supply unit P2 of outside as yet, first switch element 381 and second switch unit 382 were closing state.Anticipate promptly, first power connector 31, first charging circuit 33 are the state of not conducting when first power connector 31 does not electrically connect with the first power supply unit P1.Similarly, the relation of the conducting between the second source connector 32 and second charging circuit 34 also together.
When the first power supply unit P1 of first power connector 31 and outside electrically connected, control unit 36 received from the signal of first power connector 31 and controls and open first switch element 381.Meaning promptly, control unit 36 switches to first switch element 381 state of conducting, then electrically conduct between first power connector 31 and first charging circuit 33, make first electric current be able to be sent to energy-storage units 35 and charge via first power connector 31 and first charging circuit 33.When the second power supply unit P2 of second source connector 32 and outside electrically connects, control unit 36 receives from the signal of second source connector 32 and controls and open second switch unit 382, then electrically conduct by the second switch unit of opening 382 between second source connector 32, second charging circuit 34, make second electric current be able to be sent to energy-storage units 35 and charge via the second source connector 32 and second charging circuit 34.
For avoiding excessive charging current to cause charging circuit 33,34 to be damaged, therefore by the independent charging circuit that is provided with to carry out the charging work under the different charging currents.Please refer to Fig. 3 again, when maximum charging current amount during greater than a set point (for example 500 milliamperes), then mobile communications device 3 only can see through second source connector 32 (specification power connector usually) and to see through the second power supply unit P2 energy-storage units 35 charged.And when the maximum charging current amount was not more than this set point, then mobile communications device 3 saw through first power connector 31 (USB power connector) through the first power supply unit P1 energy-storage units 35 is charged.
No matter be to charge through first power connector 31 or 32 pairs of energy-storage units 35 of second source connector, after finishing charging flow, then can be according to the design of different circuit in the mobile communications device 3, more can be further by control unit 36 to close the electrical connection between first power connector 31 and second source connector 32 and externally fed unit P1, the P2.Perhaps, control unit 36 also can directly be closed first switch element 381 and second switch unit 382 to stop the electrical connection of first charging circuit 33 and second charging circuit 34 and first power connector 31 and second source connector 32.Meaning is promptly cut off the electrical connection between first charging circuit 33 and second charging circuit 34 and externally fed unit P1, the P2.
Enforcement aspect with Fig. 4, because control unit 36 is directly controlled the unlatching of first charging circuit 33 and second charging circuit 34 and is reached and close, so after energy-storage units 35 is finished charging, then by control unit 36 directly to close first charging circuit 33 and second charging circuit 34.For the enforcement aspect of Fig. 5, because the open and close of first charging circuit 33 and second charging circuit 34, by controlling with first switch element 381 and the second switch unit 382 of its electric connection, therefore after energy-storage units 35 is finished charging, then control unit 36 is closed first switch element 381 and second switch unit 382 to cut off the electrical connection of first charging circuit 33 and second charging circuit 34 and first power connector 31 and second source connector 32.
Because mobile communications device 3 is provided with first power connector 31 and second source connector 32 simultaneously, cause first charging circuit 33, second charging circuit 34 or even energy-storage units 35 to be damaged for fear of 32 starts simultaneously of first power connector 31 and second source connector, mobile communications device 3 more can be when first power connector 31 be electrically connected at the first power supply unit P1 and simultaneously second source connector 32 is electrically connected at the second power supply unit P2, by control unit 36 judge open first charging circuits 33 or second charging circuit 34 one of them.That is, if control unit 36 is selected to open first charging circuit 33, then can not open second charging circuit 34, vice versa.
And control unit 36 is except the open and close that can directly control first charging circuit 33 and second charging circuit 34 (as Fig. 4), when first charging circuit 33 and second charging circuit 34 are electrically connected at first switch element 381 and second switch unit 382 separately, 36 open and close by control first switch element 381 and second switch unit 382 of control unit are to control first charging circuit 33 and second charging circuit 34 (as Fig. 5).
Second embodiment
Please refer to Figure 6 and Figure 7, second embodiment of the invention a kind of has the mobile communications device 3 of current-limiting charge function ' be in: mobile communications device 3 ' only have single power supply connector 30 with first embodiment (as Fig. 3 to Fig. 5) mobile communications device 3 different, and it can be in order to the power supply unit that is electrically connected at USB and the power supply unit of common specification.And according to electrical connection shown in Figure 7 as can be known, power connector 30 electrically connects with first charging circuit 33 and second charging circuit 34 respectively, and sees through first charging circuit 33 and second charging circuit 34 and energy-storage units 35 electric connections.
Wherein, the maximum charging current that first charging circuit 33 can bear is not more than a set point (for example 500 milliamperes), and the maximum charging current that second charging circuit 34 can bear is greater than set point.And control unit 36 electrically connects with power connector 30, first charging circuit 33, second charging circuit 34 and energy-storage units 35.Be with, when an externally fed unit P was electrically connected to power connector 30, whether the signal that control unit 36 produces according to power connector 30 was not more than set point with the charging current scope of confirming externally fed unit P.If the result who judges shows that the charging current that externally fed unit P provides is not more than set point really, then control unit 36 starts first charging circuits 33 and is able to be sent to energy-storage units 35 via first charging circuit 33 and charges so that come from the electric current of externally fed unit P.If the result who judges shows charging current that externally fed unit P provides greater than set point, then control unit 36 starts second charging circuit 34 so that energy-storage units 35 is charged.
Please refer to shown in Figure 8, between the power connector 30 and first charging circuit 33 and second charging circuit 34, one switch element 38 more can be set, make power connector 30 can see through the switching of switch element 38 with the electrical connection of change with first charging circuit 33 and second charging circuit 34.When the charging current that the externally fed unit P that is electrically connected to power connector 30 when the back discovery of control unit 36 judgements provides is not more than a set point (for example 500 milliamperes), the electric connection that switch element 38 switches with the turn-on power connector 30 and first charging circuit 33.And judge the charging current of finding that externally fed unit P provide in the back during greater than set point when control unit 36,38 switchings of switch element are with the electric connection of the turn-on power connector 30 and second charging circuit 34.Switch element 38 can be single-pole double-throw switch (SPDT), and the transmission of the signal between control unit 36 and the switch element 38 can be by general input/output terminal (GPIO) with transmission.
In sum, because of foundation a kind of mobile communications device of the present invention with current-limiting charge function, by the charging circuit of different magnitude of current restrictions independently is set, and can be according to the user demand of safe charging or quick charge, make mobile communications device open corresponding charging circuit according to the current range that charger provides, to reach safety or charging efficiency fast, avoid charging current to undermine mobile communications device or charge efficiency is not good.And set point can be according to legal safety requirements, and adjusted.In addition, power connector can corresponding different charging circuits and separate setting, also can be integrated into the single power supply connector, and open corresponding charging circuit by control unit and switch element.
In this specification, the present invention is described with reference to its certain embodiments.But, still can make various modifications and conversion obviously and not deviate from the spirit and scope of the present invention.Therefore, specification and accompanying drawing are regarded in an illustrative, rather than a restrictive.
Claims (18)
1, a kind of mobile communications device with current-limiting charge function is characterized in that, comprising:
One energy-storage units;
One first power connector;
One first charging circuit electrically connect with this first power connector and this energy-storage units, and the maximum current flow of this first charging circuit is not more than a set point;
One second source connector; And
One second charging circuit electrically connect with this second source connector and this energy-storage units, and the maximum current flow of this second charging circuit is greater than this set point.
2, the mobile communications device with current-limiting charge function as claimed in claim 1 is characterized in that, more comprises:
One control unit electrically connects with this first charging circuit and this second charging circuit.
3, the mobile communications device with current-limiting charge function as claimed in claim 2 is characterized in that, this control unit is exported a controlling signal and opened this first charging circuit or this second charging circuit.
4, the mobile communications device with current-limiting charge function as claimed in claim 1 is characterized in that, more comprises:
One first switch element is electrically connected between this first power connector and this first charging circuit.
5, the mobile communications device with current-limiting charge function as claimed in claim 4 is characterized in that, more comprises:
One second switch unit is electrically connected between this second source connector and this second charging circuit.
6, the mobile communications device with current-limiting charge function as claimed in claim 5 is characterized in that, this first switch element and/or this second switch unit are single-pole double-throw switch (SPDT).
7, the mobile communications device with current-limiting charge function as claimed in claim 5 is characterized in that, more comprises:
One control unit electrically connects with this first switch element and this second switch unit.
8, the mobile communications device with current-limiting charge function as claimed in claim 7 is characterized in that, this control unit is exported this first switch element of a controlling signal On/Off and this second diverter switch.
9, the mobile communications device with current-limiting charge function as claimed in claim 8 is characterized in that, this first switch element and this second switch unit can not opened simultaneously.
10, the mobile communications device with current-limiting charge function as claimed in claim 8 is characterized in that, this controlling signal is by two general input/output terminal outputs of this control unit.
11, the mobile communications device with current-limiting charge function as claimed in claim 1 is characterized in that, this first power connector is a USB connector.
12, the mobile communications device with current-limiting charge function as claimed in claim 1 is characterized in that, this second source connector is standard charging device connector, traveling charger connector or vehicle charger connector.
13, the mobile communications device with current-limiting charge function as claimed in claim 1 is characterized in that, this set point is 500 milliamperes.
14, a kind of mobile communications device with current-limiting charge function receives an input power supply, it is characterized in that, comprising:
One energy-storage units;
One first charging circuit electrically connect with this energy-storage units, and the maximum current flow of this first charging circuit is not more than a set point;
One second charging circuit electrically connect with this energy-storage units, and the maximum current flow of this second charging circuit is greater than this set point;
One power connector receives this input power supply;
One switches switch, electrically connects with this power connector, this first charging circuit and this second charging circuit; And
One control unit electrically connects with this diverter switch, exports a controlling signal according to the magnitude of current of this input power supply and switches this diverter switch.
15, the mobile communications device with current-limiting charge function as claimed in claim 14 is characterized in that, this controlling signal is by two general input/output terminal outputs of this control unit.
16, the mobile communications device with current-limiting charge function as claimed in claim 14, it is characterized in that this power connector is selected from the group that USB connector, standard charging device connector, traveling charger connector and vehicle charger connector are constituted.
17, the mobile communications device with current-limiting charge function as claimed in claim 14 is characterized in that, this set point is 500 milliamperes.
18, the mobile communications device with current-limiting charge function as claimed in claim 14 is characterized in that, this diverter switch is a single-pole double-throw switch (SPDT).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200710047220XA CN101414753A (en) | 2007-10-19 | 2007-10-19 | Mobile communication apparatus with current-limiting charge function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200710047220XA CN101414753A (en) | 2007-10-19 | 2007-10-19 | Mobile communication apparatus with current-limiting charge function |
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| CN101414753A true CN101414753A (en) | 2009-04-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNA200710047220XA Pending CN101414753A (en) | 2007-10-19 | 2007-10-19 | Mobile communication apparatus with current-limiting charge function |
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| CN103516014A (en) * | 2012-06-19 | 2014-01-15 | 三星电子株式会社 | Battery charging method and electronic device |
| CN103842213A (en) * | 2011-10-07 | 2014-06-04 | 大陆汽车有限公司 | Apparatus for location-dependent configuration |
| CN104810909A (en) * | 2014-01-28 | 2015-07-29 | 广东欧珀移动通信有限公司 | Quick charge control method and system |
| CN104810879A (en) * | 2014-01-28 | 2015-07-29 | 广东欧珀移动通信有限公司 | Quick charge method and system |
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| CN106253400A (en) * | 2016-08-25 | 2016-12-21 | 维沃移动通信有限公司 | A kind of charging method, mobile terminal and charger |
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