CN108206592A - A kind of wireless charging system for electronic equipment - Google Patents
A kind of wireless charging system for electronic equipment Download PDFInfo
- Publication number
- CN108206592A CN108206592A CN201810052842.XA CN201810052842A CN108206592A CN 108206592 A CN108206592 A CN 108206592A CN 201810052842 A CN201810052842 A CN 201810052842A CN 108206592 A CN108206592 A CN 108206592A
- Authority
- CN
- China
- Prior art keywords
- transmitting
- energy
- resonant network
- wireless charging
- charging system
- 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.)
- Pending
Links
Classifications
-
- 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
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
- H02J50/12—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
-
- 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
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/80—Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The present invention discloses a kind of wireless charging system for electronic equipment, purpose, which is to solve, finds a kind of implementation of wireless charging system simple in structure, it includes energy transmitting end and energy acceptance end, and energy transmitting end includes the first entire filter module connected in sequence, inverter circuit, translation circuit and transmitting resonant network；Energy acceptance end includes the reception resonant network connected in sequence to match with transmitting resonant network and the second entire filter module；Energy transmitting end is connect with energy acceptance end by emitting resonant network and the reception resonant network.The present invention realizes transmission of the electric energy between energy transmitting end and energy acceptance end, while simplify wireless charging system structure by the first entire filter module, inverter circuit, translation circuit and transmitting resonant network and the reception resonant network to match with transmitting resonant network and the setting of the second entire filter module.
Description
Technical field
The present invention relates to wireless charging field, specifically, the present invention relates to a kind of wireless chargings for electronic equipment
System.
Background technology
As electronic functionalities are more and more stronger, screen size is increasing, and power consumption also increases, but battery
The development of technology is but not kept pace with the step of electronic equipment development.Wired charging method is typically all that an electronic product is equipped with one
A charger other than charger and data line are various, can also cause the wasting of resources, since the consumption figure of electronic equipment is huge,
So the consumption on charger and data line is also very huge.Further, since the reason of wired charging method itself, it is necessary to
A dedicated charging interface is stayed on electronic equipment, this interface is easy to damage after repeatedly plugging, moreover, this
Charging interface as electronic equipment in water environment it is also possible to the reason of breaking down.
Also occur a small amount of wireless charging system for being directed to electronic equipment at present, such as application No. is
201710868886.5 Chinese invention patent application discloses a kind of wireless charging system of achievable multi-coil screening, still
Multiple screening units are provided with inside the wireless charging system so that wireless charging system structure becomes complicated, and is being not required to
For transmitting terminal there are larger quiescent dissipation, fever is serious when charging to electronic equipment, thus the service life is high, inefficient,
Poor practicability.
Invention content
In order to find a kind of implementation of wireless charging system simple in structure, an embodiment of the present invention provides a kind of use
In the wireless charging system of electronic equipment, which includes energy transmitting end and energy acceptance
End, the energy transmitting end include the first entire filter module connected in sequence for converting alternating current to unidirectional rippled DC electricity, incite somebody to action
Direct current be converted into high-frequency alternating current inverter circuit, for the inverter circuit input stable DC electricity translation circuit with
And the transmitting resonant network for emitting the high-frequency alternating current for carrying electric energy；
The energy acceptance end include it is connected in sequence with the reception resonant network that matches of transmitting resonant network with
And for converting alternating current to direct current and being conveyed to the second entire filter module of load；
The energy transmitting end passes through the transmitting resonant network and the reception resonant network with the energy acceptance end
Connection.
Preferably, the transmitting resonant network includes coupling inductance Ls and compensating electric capacity Cs；
One end of the compensating electric capacity Cs is connect with the inverter circuit, the other end and the coupling of the compensating electric capacity Cs
Close one end connection of inductance Ls；
The other end of the coupling inductance Ls is also connect with the inverter circuit.
Preferably, the energy transmitting end includes transmitting main controller connect with the inverter circuit, for described in acquiring
Emit the second detection unit of the current feedback signal of resonant network；
One end of the second detection unit is connected to the junction of the inverter circuit and the coupling inductance Ls, described
The other end of second detection unit is connect with the transmitting main controller；
The transmitting main controller adjusts the inverter circuit by receiving the current feedback signal of the second detection unit
Operating current.
Preferably, the energy transmitting end includes the reception solution for controlling signal for obtaining the energy acceptance end generation
Adjust unit；
The reception demodulating unit is connect with the transmitting main controller；
The transmitting main controller adjusts the inverter circuit by receiving the control signal for receiving demodulating unit
Working condition.
Preferably, the reception demodulating unit includes antenna AR, and the reception demodulating unit is received by the antenna AR
The control signal of the energy acceptance end generation.
Preferably, the reception resonant network includes coupling inductance Lr and compensating electric capacity Cr；
One end of the compensating electric capacity Cr is connect with the second entire filter module, the other end of the compensating electric capacity Cr and institute
State one end connection of coupling inductance Lr；
The other end of the coupling inductance Lr is also connect with the second entire filter module.
Preferably, the energy acceptance end includes acquiring the current signal that the second entire filter module is delivered to load
Third detection unit, for according to the current signal of third detection unit generate control signal reception main controller and be used for
The transmitting modulation unit of the control signal is sent to the energy transmitting end；
One end of the third detection unit is connected to the junction of the second entire filter module and the load, and described
The other end of three detection units and the transmitting modulation unit connect reception main controller respectively.
Preferably, the transmitting modulation unit includes antenna AS, and the transmitting modulation unit is by antenna AS to the energy
It measures transmitting terminal and sends the control signal.
Compared with prior art, a kind of wireless charging system for electronic equipment of the invention has as follows
Advantageous effect：
The present invention is by converting alternating current to the first entire filter module of unidirectional rippled DC electricity, direct current being converted into height
The inverter circuit of frequency alternating current, translation circuit and for emit the transmitting resonant network for the high-frequency alternating current for carrying electric energy with
And with the reception resonant network that matches of transmitting resonant network and for converting alternating current to direct current and being conveyed to load
The setting of the second entire filter module realize transmission of the electric energy between energy transmitting end and energy acceptance end, while simplify nothing
Micro USB electric system structure.
The present invention is also detected by first detection unit, voltage controller, second detection unit, transmitting main controller, third
Unit receives main controller, receives demodulating unit and emits the setting of modulation unit so that energy transmitting end can be according to energy
The needs of receiving terminal adjust transimission power in real time, reduce the larger of energy transmitting end when not needing to charge to electronic equipment
Quiescent dissipation, extend service life to a certain extent, improve charge efficiency, enhance practicability.
The additional aspect of the present invention and advantage will be set forth in part in the description, these will become from the following description
It obtains significantly or is recognized by the practice of the present invention.
Description of the drawings
Above-mentioned and/or additional aspect and advantage of the invention will become from the following description of the accompanying drawings of embodiments
Significantly and it is readily appreciated that, wherein：
Fig. 1 is a kind of circuit module knot of wireless charging system for electronic equipment provided by one embodiment of the present invention
Structure schematic diagram；
Fig. 2 is a kind of energy transmitting end of wireless charging system for electronic equipment provided by one embodiment of the present invention
Circuit modular structure schematic diagram；
Fig. 3 is a kind of energy acceptance end of wireless charging system for electronic equipment provided by one embodiment of the present invention
Circuit modular structure schematic diagram.
Identifier declaration in figure：
101st, the first entire filter module；102nd, voltage controller；103rd, translation circuit；104th, first detection unit；105th, it is inverse
Become circuit；106th, emit main controller；108th, second detection unit；100th, demodulating unit is received；
201st, third detection unit；202nd, the second entire filter module；203rd, main controller is received；204th, it loads；200th, transmitting is adjusted
Unit processed.
Specific embodiment
The embodiment of the present invention is described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
The embodiment of figure description is exemplary, and is only used for explaining the present invention, and is not construed as limiting the claims.
Referring to Fig. 1, a kind of wireless charging system for electronic equipment of the embodiment of the present invention, including energy transmitting end
With energy acceptance end, wherein energy transmitting end is connect with energy acceptance end by eating dishes without rice or wine.
Energy transmitting end includes alternating current AC is converted into the first entire filter module 101 of unidirectional rippled DC electricity, is used
Inverter circuit 105 in the high-frequency alternating current that direct current is converted into predeterminated frequency, for inputted to inverter circuit 105 stablize it is straight
The translation circuit 103 of galvanic electricity and the transmitting resonant network for emitting the high-frequency alternating current for carrying electric energy, wherein, first is whole
Filter module 101 is electrically connected with exchange, the first entire filter module 101, translation circuit 103, inverter circuit 105 and transmitting resonant network
It is sequentially connected with；Energy transmitting end is connect by emitting resonant network with energy acceptance end.
The rectification for being used to convert alternating current to the direct current unidirectionally fluctuated that first entire filter module 101 includes being connected with each other
Bridge and the filter unit for larger direct current will be fluctuated to be converted into the stable direct current of comparison, wherein, rectifier bridge is preferably
Bridge rectifier, filter unit are preferably filter capacitor.
Referring to Fig. 2, in order to meet requirement of the inverter circuit 105 for the direct current of specific voltage, energy transmitting end is also
It is provided with voltage controller 102 and the first detection unit for acquiring the voltage feedback signal for being input to inverter circuit 105
104, wherein, one end of first detection unit 104 is connected to the junction of translation circuit 103 and inverter circuit 105, the other end with
One end connection of voltage controller 102；The other end of voltage controller 102 is connect with translation circuit 103；Voltage controller 102
The voltage value of the output of translation circuit 103 is adjusted by the voltage feedback signal that first detection unit 104 acquires.
In some embodiments, translation circuit 103 is DC-DC converter, and it is defeated which includes a control
The voltage value for going out voltage obtains switching tube, and voltage controller 102 adjusts switching tube by voltage feedback signal, so that transformation electricity
The voltage value that road 103 exports meets the requirement of inverter circuit 105.
Inverter circuit 105 is converted by high frequency DC-AC, by the high-frequency alternating current that low-voltage DC inversion is certain frequency.
In some embodiments, inverter circuit 105 is preferably high-frequency inverter..
Emit resonant network and include coupling inductance Ls and compensating electric capacity Cs, wherein, one end and the inversion electricity of compensating electric capacity Cs
Road 105 connects, and the other end is connect with one end of coupling inductance Ls；The other end of coupling inductance Ls is also connect with inverter circuit 105.
In practice, when transmitting resonant network receive inverter circuit 105 transmission high-frequency alternating current after by coupling inductance Ls with
Compensating electric capacity Cs generates the alternating magnetic field of high frequency, in this way, electric energy is inductively just by the changes of magnetic field of high frequency in energy transmitting
It is transmitted between end and energy acceptance end.
In order to enhance the stability of the efficiency of inverter circuit 105 and work, energy transmitting end further includes and inverter circuit
The second detection unit 108 and use of the current signal for emitting main controller 106, emitting resonant network for acquisition of 105 connections
In the reception demodulating unit 100 for the control signal for obtaining the generation of energy acceptance end, wherein, one end of second detection unit 108 connects
The junction of inverter circuit 105 and coupling inductance Ls is connected to, the other end of the second detection unit 108 and reception demodulating unit
100 connect respectively with transmitting main controller 106.
In practice, transmitting main controller 106 adjusts inversion electricity by receiving the current feedback signal of second detection unit 108
The operating current on road 105.It is noted that transmitting main controller 106 can also pass through the control of the reception demodulating unit 100 of reception
The working condition of signal adjustment inverter circuit 105 processed, for example, when the control signal of energy acceptance end generation is no electronic equipment
It is using, then inverter circuit 105 can directly be turned off, and then reduce quiescent dissipation and equipment heating by emitting main controller 106.
In some embodiments, it receives demodulating unit 100 and includes antenna AR, receive demodulating unit 100 and pass through antenna AR
Receive the control signal of energy acceptance end generation.
Referring to Fig. 3, energy acceptance end include with transmitting resonant network match reception resonant network, load 204 with
And for convert alternating current to direct current and be conveyed to load 204 the second entire filter module 202, wherein, energy acceptance end leads to
Reception resonant network is crossed to connect with energy transmitting end；Resonant network, the second entire filter module 202 and load 204 is received sequentially to connect
It connects.
It receives resonant network and includes coupling inductance Lr and compensating electric capacity Cr, wherein, one end of compensating electric capacity Cr and second whole
Filter module 202 connects, and the other end is connect with one end of coupling inductance Lr；The other end of coupling inductance Lr and the second entire filter module
202 connections.
The information such as size, charged state for the ease of current transmission power, and these information are transferred to energy in time
Transmitting terminal, energy acceptance end are additionally provided with to acquire the third that the second entire filter module 202 is delivered to the current signal of load 204
Detection unit 201, for according to the current signal of third detection unit 201 generate control signal reception main controller 203 and
For sending the transmitting modulation unit 200 of the control signal to energy transmitting end, wherein, one end of third detection unit 201 connects
It is connected to the junction between the second entire filter module 202 and load 204, the other end of third detection unit 201 and transmitting modulation
Unit 200 connects respectively receives main controller 203.
In some embodiments, transmitting modulation unit 200 is further included is adapted with receiving the antenna AR of demodulating unit 100
Antenna AS, transmitting modulation unit 200 by antenna AS to receive demodulating unit 100 send control signal.
In practice, it is big to receive the current actual transmission power that main controller 203 can obtain third detection unit 201
It is small compared with target power, and then generate control signal, then emit main controller 106 realized by adjusting inverter circuit 105
Real-time adjustment for transimission power, so as to improve the pervasive ability of the wireless charging system of the electronic equipment.
Certainly, in practice, can also the instruction of real-time prompting energy acceptance end working condition be set at energy acceptance end
Lamp or alarm lamp can receive main controller 203 by connection and realize.
Compared with prior art, a kind of wireless charging system for electronic equipment of the embodiment of the present invention has following beneficial
Effect：
The present invention is by converting alternating current to the first entire filter module 101 of unidirectional rippled DC electricity, converting direct current
Into the inverter circuit 105 of high-frequency alternating current, translation circuit 103 and for emit carry electric energy high-frequency alternating current transmitting
Resonant network and with the reception resonant network that matches of transmitting resonant network and for converting alternating current to direct current simultaneously
Being conveyed to the setting of the second entire filter module 202 of load 204 realizes electric energy between energy transmitting end and energy acceptance end
Transmission, while simplify wireless charging system structure.
The present invention also passes through first detection unit 104, voltage controller 102, second detection unit 108, transmitting main controller
106th, third detection unit 201, reception main controller 203, the setting for receiving demodulating unit 100 and transmitting modulation unit 200, make
Energy transmitting end can adjust transimission power in real time according to the needs at energy acceptance end, reduce do not need to electronic equipment into
The larger quiescent dissipation at energy transmitting end, extends service life, improves charge efficiency to a certain extent during row charging,
Enhance practicability.
The above is only some embodiments of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (8)
1. a kind of wireless charging system for electronic equipment, including energy transmitting end and energy acceptance end, it is characterised in that：
The energy transmitting end includes the first entire filter module connected in sequence for converting alternating current to unidirectional rippled DC electricity, incites somebody to action
Direct current be converted into high-frequency alternating current inverter circuit, for the inverter circuit input stable DC electricity translation circuit with
And the transmitting resonant network for emitting the high-frequency alternating current for carrying electric energy；
The energy acceptance end includes the reception resonant network connected in sequence to match with the transmitting resonant network and use
In converting alternating current to direct current and be conveyed to the second entire filter module of load；
The energy transmitting end is connect with the energy acceptance end by the transmitting resonant network and the reception resonant network.
2. it to be used for the wireless charging system of electronic equipment as described in claim 1, it is characterised in that：The transmitting resonant network
Including coupling inductance Ls and compensating electric capacity Cs；
One end of the compensating electric capacity Cs is connect with the inverter circuit, and the other end of the compensating electric capacity Cs couples electricity with described
Feel one end connection of Ls；
The other end of the coupling inductance Ls is also connect with the inverter circuit.
3. it to be used for the wireless charging system of electronic equipment as claimed in claim 2, it is characterised in that：The energy transmitting end packet
Include the transmitting main controller being connect with the inverter circuit, for acquire it is described transmitting resonant network current feedback signal second
Detection unit；
One end of the second detection unit is connected to the junction of the inverter circuit and the coupling inductance Ls, and described second
The other end of detection unit is connect with the transmitting main controller；
The transmitting main controller adjusts the work of the inverter circuit by receiving the current feedback signal of the second detection unit
Make electric current.
4. it to be used for the wireless charging system of electronic equipment as claimed in claim 3, it is characterised in that：The energy transmitting end packet
Include the reception demodulating unit for controlling signal for obtaining the energy acceptance end generation；
The reception demodulating unit is connect with the transmitting main controller；
The transmitting main controller adjusts the work of the inverter circuit by receiving the control signal for receiving demodulating unit
Make state.
5. it to be used for the wireless charging system of electronic equipment as claimed in claim 4, it is characterised in that：The reception demodulating unit
Including antenna AR, the control signal for receiving demodulating unit and the energy acceptance end generation being received by the antenna AR.
6. it to be used for the wireless charging system of electronic equipment as described in claim 1, it is characterised in that：The reception resonant network
Including coupling inductance Lr and compensating electric capacity Cr；
One end of the compensating electric capacity Cr is connect with the second entire filter module, the other end and the coupling of the compensating electric capacity Cr
Close one end connection of inductance Lr；
The other end of the coupling inductance Lr is also connect with the second entire filter module.
7. it to be used for the wireless charging system of electronic equipment as described in claim 1, it is characterised in that：The energy acceptance end packet
Include for acquire the second entire filter module be delivered to load current signal third detection unit, for being detected according to third
The current signal generation of unit controls the reception main controller of signal and believes for sending the control to the energy transmitting end
Number transmitting modulation unit；
One end of the third detection unit is connected to the junction of the second entire filter module and the load, the third inspection
The other end and the transmitting modulation unit for surveying unit connect reception main controller respectively.
8. it to be used for the wireless charging system of electronic equipment as claimed in claim 7, it is characterised in that：The transmitting modulation unit
Including antenna AS, the transmitting modulation unit sends the control signal by antenna AS to the energy transmitting end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810052842.XA CN108206592A (en) | 2018-01-19 | 2018-01-19 | A kind of wireless charging system for electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810052842.XA CN108206592A (en) | 2018-01-19 | 2018-01-19 | A kind of wireless charging system for electronic equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108206592A true CN108206592A (en) | 2018-06-26 |
Family
ID=62605267
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810052842.XA Pending CN108206592A (en) | 2018-01-19 | 2018-01-19 | A kind of wireless charging system for electronic equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108206592A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013046391A1 (en) * | 2011-09-29 | 2013-04-04 | 株式会社日立エンジニアリング・アンド・サービス | Charging controller and charging control method |
| CN104124769A (en) * | 2013-04-28 | 2014-10-29 | 海尔集团技术研发中心 | Wireless power supply control system and method |
| CN104885324A (en) * | 2012-11-05 | 2015-09-02 | 鲍尔拜普罗克西有限公司 | Inductively coupled power transfer systems |
| CN106026320A (en) * | 2016-06-22 | 2016-10-12 | 广州致远电子股份有限公司 | Data acquisition equipment and power supply device thereof, and power supply method |
| CN106329737A (en) * | 2016-09-13 | 2017-01-11 | 成都创慧科达科技有限公司 | Cell phone having electric quantity sharing function |
| CN107171450A (en) * | 2017-06-16 | 2017-09-15 | 江苏嘉钰新能源技术有限公司 | A kind of electromagnetic coupled formula wireless charging system |
-
2018
- 2018-01-19 CN CN201810052842.XA patent/CN108206592A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013046391A1 (en) * | 2011-09-29 | 2013-04-04 | 株式会社日立エンジニアリング・アンド・サービス | Charging controller and charging control method |
| CN104885324A (en) * | 2012-11-05 | 2015-09-02 | 鲍尔拜普罗克西有限公司 | Inductively coupled power transfer systems |
| CN104124769A (en) * | 2013-04-28 | 2014-10-29 | 海尔集团技术研发中心 | Wireless power supply control system and method |
| CN106026320A (en) * | 2016-06-22 | 2016-10-12 | 广州致远电子股份有限公司 | Data acquisition equipment and power supply device thereof, and power supply method |
| CN106329737A (en) * | 2016-09-13 | 2017-01-11 | 成都创慧科达科技有限公司 | Cell phone having electric quantity sharing function |
| CN107171450A (en) * | 2017-06-16 | 2017-09-15 | 江苏嘉钰新能源技术有限公司 | A kind of electromagnetic coupled formula wireless charging system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11303134B2 (en) | Grid synchronisation | |
| US20200144871A1 (en) | Device to be Charged, Wireless Charging Method and System | |
| CN110178283A (en) | Charging equipment, wireless charging device, wireless charging method and system | |
| KR101705735B1 (en) | Resonance Power Generator | |
| CN105914899B (en) | It is a kind of can two-way operation radio energy transmission system and method | |
| CN203707858U (en) | Electric bicycle magnetic coupling resonant wireless charger | |
| WO2014010518A1 (en) | Power-receiving device and power transfer system | |
| CN104701999B (en) | Mode of resonance contactless power supply device, electric energy transmitting terminal and control method | |
| CN104659925A (en) | Wireless power transceiving method and device | |
| CN104953682A (en) | Circuit with both functions of wireless power transmitter and wireless power receiver and device thereof | |
| CN113991889A (en) | Wireless power transmission power control method and system | |
| CN110611359A (en) | Device and method for realizing single-tube inversion constant-current constant-voltage wireless charging through secondary compensation network switching | |
| US20210066965A1 (en) | Contactless power supply device | |
| CN112311106A (en) | Single-stage full-bridge constant-current constant-voltage wireless charging device and control method thereof | |
| CN107117059B (en) | Vehicle-mounted end charging device of electric automobile and electric automobile | |
| CN113162170A (en) | Wireless charging circuit | |
| CN108206592A (en) | A kind of wireless charging system for electronic equipment | |
| CN107994686B (en) | Multi-load inductive coupling power transmission device | |
| CN203801099U (en) | Power circuit and microwave oven | |
| CN214626447U (en) | Wireless charging circuit | |
| CN108964287A (en) | Electric power wireless energy transfer system | |
| CN212366915U (en) | Direct current illumination distribution equipment and direct current illumination distribution system | |
| CN103683940B (en) | A kind of DC-DC transfer circuit, device and method of work | |
| CN214412374U (en) | Charging system | |
| CN216451189U (en) | Wireless power transmission power control system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180626 |
|
| RJ01 | Rejection of invention patent application after publication |