CN207559657U - Charging circuit and charging equipment - Google Patents
Charging circuit and charging equipment Download PDFInfo
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- CN207559657U CN207559657U CN201721841582.1U CN201721841582U CN207559657U CN 207559657 U CN207559657 U CN 207559657U CN 201721841582 U CN201721841582 U CN 201721841582U CN 207559657 U CN207559657 U CN 207559657U
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- charge
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Abstract
Charging circuit and charging equipment provided by the utility model, are related to charging technique field.Wherein, charging circuit includes charge collecting unit, charge storage elements, control unit and switch unit.Wherein, the charge storage elements are used to obtain the charge that circuit generation occurs for the charge collecting unit acquisition charge, and pass through and store the charge to obtain electric energy, described control unit is when the voltage value of the charge storage elements reaches preset value, the switching means conductive is controlled, is charged so that the charge storage elements treat charging circuit by the switch unit.By above-mentioned setting, it can realize and charge occur efficiently using for the charge that circuit generates, avoid the problem that the wasting of resources.
Description
Technical field
The utility model is related to charging technique field, in particular to a kind of charging circuit and charging equipment.
Background technology
With the continuous development of electronic technology, it is widely used using the electronic equipment of the technology.Wherein, in electricity
Can generally there be the charge generation circuit that can be generated charge and form potential in the application of sub- equipment.It studies and sends out through inventor
Existing, charge occurs charge that circuit generates and there are problems that the wasting of resources when not utilized in the prior art.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of charging circuit and charging equipment, to realize to charge
Efficiently using for the charge that circuit generates occurs, avoids the problem that the wasting of resources.
To achieve the above object, the utility model embodiment adopts the following technical scheme that：
A kind of charging circuit, including：
Charge collecting unit, the input terminal of the charge collecting unit occur as the input terminal of the charging circuit with charge
Circuit connects, to acquire the charge that charge occurs circuit and generates；
Charge storage elements, the input terminal of the charge storage elements are connect with the output terminal of the charge collecting unit, with
The charge of the charge collecting unit acquisition is obtained, and passes through and stores the charge to obtain electric energy；
Control unit, the input terminal of the control unit are connect with the charge storage elements, with according to the charge storage
The voltage value output control signal of unit；
Switch unit, the control terminal of the switch unit is connect with described control unit, input terminal and the charge storage list
Member connection, output terminal are connect as the output terminal of the charging circuit with circuit to be charged；
Wherein, described control unit controls the switch when the voltage value of the charge storage elements reaches preset value
Unit is connected, and charges so that the charge storage elements treat charging circuit by the switch unit.
In the utility model embodiment preferably selects, in above-mentioned charging circuit, described control unit includes：
Voltage detector, the input terminal of the voltage detector are connect with the charge storage elements, to detect the charge
The voltage value of storage unit, and first control signal is exported according to the voltage value；
Control signal generator, the input terminal of the control signal generator connect with the output terminal of the voltage detector,
Output terminal is connect with the control terminal of the switch unit, to export second to the switch unit according to the first control signal
Control signal；
Wherein, the voltage detector exports high level signal, the control when the voltage value detected is more than preset value
Signal generator processed exports square-wave signal when receiving the high level signal, and the switch unit is in the height electricity of square-wave signal
Usually section conducting, the shutdown of low level period, to treat charging circuit into the ranks by the switch unit alternate conduction and shutdown
Gap type pulse charge.
In the utility model embodiment preferably selects, in above-mentioned charging circuit, the charge storage elements are electricity
Container and/or capacitor board.
In the utility model embodiment preferably selects, in above-mentioned charging circuit, the switch unit for triode,
Mos field effect transistor, thyristor, silicon carbide transistor, gallium nitride transistor, high electron mobility are brilliant
One kind in body pipe and insulated gate bipolar transistor.
In the utility model embodiment preferably selects, in above-mentioned charging circuit, the switch unit is N-type metal
Oxide semiconductor field effect transistor, the grid of the N-type mos field effect transistor and the control are single
The output terminal connection of member, drain electrode is connect with the charge storage elements, source electrode is filled as the output terminal of the charging circuit with waiting
Circuit connects.
In the utility model embodiment preferably selects, in above-mentioned charging circuit, the switch unit is triode,
The triode includes base stage, collector and emitter, wherein, control terminal of the base stage as the switch unit, the collection
One of input terminal as the switch unit of electrode and emitter, another output as the switch unit
End.
In the utility model embodiment preferably selects, in above-mentioned charging circuit, the charging circuit further includes：
Voltage regulation unit, the input terminal of the voltage regulation unit is connect with the output terminal of the switch unit, described in output terminal conduct
The output terminal of charging circuit is connect with circuit to be charged, after carrying out voltage stabilizing processing by the electric energy that the switch unit exports
It exports to circuit to be charged.
The utility model embodiment additionally provides a kind of charging equipment, and circuit and charging circuit occurs including charge, described
Charging circuit includes：
Charge collecting unit, the input terminal of the charge collecting unit occur as the input terminal of the charging circuit with charge
Circuit connects, to acquire the charge that charge occurs circuit and generates；
Charge storage elements, the input terminal of the charge storage elements are connect with the output terminal of the charge collecting unit, with
The charge of the charge collecting unit acquisition is obtained, and passes through and stores the charge to obtain electric energy；
Control unit, the input terminal of the control unit are connect with the charge storage elements, with according to the charge storage
The voltage value output control signal of unit；
Switch unit, the control terminal of the switch unit is connect with described control unit, input terminal and the charge storage list
Member connection, output terminal are connect as the output terminal of the charging circuit with circuit to be charged；
Wherein, described control unit controls the switch when the voltage value of the charge storage elements reaches preset value
Unit is connected, and charges so that the charge storage elements treat charging circuit by the switch unit.
In the utility model embodiment preferably selects, in above-mentioned charging equipment, described control unit includes：
Voltage detector, the input terminal of the voltage detector are connect with the charge storage elements, to detect the charge
The voltage value of storage unit, and first control signal is exported according to the voltage value；
Control signal generator, the input terminal of the control signal generator connect with the output terminal of the voltage detector,
Output terminal is connect with the control terminal of the switch unit, to export second to the switch unit according to the first control signal
Control signal；
Wherein, the voltage detector exports high level signal, the control when the voltage value detected is more than preset value
Signal generator processed exports square-wave signal when receiving the high level signal, and the switch unit is in the height electricity of square-wave signal
Usually section conducting, the shutdown of low level period, to treat charging circuit into the ranks by the switch unit alternate conduction and shutdown
Gap type pulse charge.
In the utility model embodiment preferably selects, in above-mentioned charging equipment, circuit occurs for the charge to penetrate
Frequency power-supply circuit, electromagnetic coupling circuit, triboelectrification circuit, field coupling circuit, photovoltaic conversion circuit and piezoelectricity conversion circuit
In one kind.
Charging circuit and charging equipment provided by the utility model, pass through charge collecting unit, charge storage elements, control
Charge can the charge that circuit generates and charge for treating charging circuit by the cooperation of unit and switch unit occur, into
And realize and charge occurs the problem of the efficiently using, be effectively prevented from the wasting of resources of charge that circuit generates, it greatlys improve
The economic performance of charging circuit and charging equipment.
Further, by using square-wave signal control switch unit alternate conduction with shutdown, with treat charging circuit into
Gap type pulse charge in the ranks so as to improve the efficiency of charging, is effectively improved the economic performance of charging circuit and charging equipment.
For the above-mentioned purpose of the utility model, feature and advantage is enable to be clearer and more comprehensible, preferred embodiment cited below particularly, and
Attached drawing appended by cooperation, is described in detail below.
Description of the drawings
Fig. 1 is the application block diagram of charging equipment that the utility model embodiment provides.
Fig. 2 is the application block diagram of charging circuit that the utility model embodiment provides.
Fig. 3 is the structure diagram of charging circuit that the utility model embodiment provides.
Fig. 4 is another structure diagram of charging circuit that the utility model embodiment provides.
Icon：10- charging equipments；100- charging circuits；110- charge collecting units；130- charge storage elements；150-
Control unit；151- voltage detectors；153- control signal generators；170- switch units；190- voltage regulation units；200- charges
Circuit occurs；300- circuits to be charged.
Specific embodiment
Purpose, technical scheme and advantage to make the utility model embodiment are clearer, new below in conjunction with this practicality
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the part of the embodiment of the utility model, instead of all the embodiments.Usually retouched in attached drawing here
The component of the utility model embodiment stated and shown can be configured to arrange and design with a variety of different.
Therefore, requirement is not intended to limit to the detailed description of the embodiment of the utility model provided in the accompanying drawings below
The scope of the utility model of protection, but it is merely representative of the selected embodiment of the utility model.Based in the utility model
Embodiment, those of ordinary skill in the art's all other embodiments obtained without creative efforts, all
Belong to the range of the utility model protection.
It should be noted that：Similar label and letter represents similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need to that it is further defined and explained in subsequent attached drawing.In the utility model
In description, term " first ", " second ", " third ", " the 4th " etc. are only used for distinguishing description, and it is not intended that being or implying
Relative importance.
In the description of the present invention, unless otherwise clearly defined and limited, term " setting ", " connected ", " company
Connect " it should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected or be integrally connected；It can be machine
Tool is connected or is electrically connected；It can be directly connected, can also be indirectly connected by intermediary, can be two members
Connection inside part.For the ordinary skill in the art, it can understand that above-mentioned term is new in this practicality with concrete condition
Concrete meaning in type.
As shown in Figure 1, the utility model embodiment provides a kind of charging equipment 10, for treat charging circuit 300 into
Row charging.Wherein, the charging equipment 10 includes charge generation circuit 200 and charging circuit 100.
In the present embodiment, the input terminal of output terminal and the charging circuit 100 that circuit 200 occurs for the charge connects
It connects, the output terminal of the charging circuit 100 is connect with the input terminal of the circuit 300 to be charged, passes through the charging to realize
Circuit 100 is exported to the charge for generating charge generation circuit 200 to the circuit 300 to be charged, to wait to fill to described
The purpose that circuit 300 charges.
Optionally, the concrete type of the charge generation circuit 200 is unrestricted, as long as charge can be generated, for example,
Can be radio frequency power-supply circuit, electromagnetic coupling circuit, triboelectrification circuit, field coupling circuit, photovoltaic conversion circuit and piezoelectricity
The circuit of one kind or other charges that can be generated and output in conversion circuit.
With reference to Fig. 2, the utility model embodiment also provides a kind of charging circuit that can be applied to above-mentioned charging equipment 10
100.Wherein, the charging circuit 100 includes charge collecting unit 110, charge storage elements 130, control unit 150 and switch
Unit 170.
Further, in the present embodiment, the input terminal of the charge collecting unit 110 is as the charging circuit 100
Input terminal and charge circuit 200 occur connect, to acquire the charge that charge occurs circuit 200 and generates.The charge storage list
The input terminal of member 130 is connect with the output terminal of the charge collecting unit 110, is acquired with obtaining the charge collecting unit 110
Charge, and pass through and store the charge to obtain electric energy.The input terminal of described control unit 150 and the charge storage elements
130 connections, to export control signal according to the voltage value of the charge storage elements 130.The control terminal of the switch unit 170
It is connect with described control unit 150, input terminal is connect with the charge storage elements 130, output terminal is as the charging circuit
100 output terminal is connect with circuit 300 to be charged.
Wherein, described control unit 150 controls institute when the voltage value of the charge storage elements 130 reaches preset value
Switch unit 170 is stated to be connected so that the charge storage elements 130 by the switch unit 170 treat charging circuit 300 into
Row charging.Described control unit 150 is opened when the voltage value of the charge storage elements 130 is not up to preset value described in control
It closes unit 170 to turn off, be difficult to due to the voltage value for exporting electric energy is too low to electricity to be charged to avoid the charge storage elements 130
The problem of road 300 is effectively and reliably charged.
Optionally, the concrete numerical value of the preset value is unrestricted, can be according to effective charging electricity of circuit 300 to be charged
Pressure is configured, for example, when effective charging voltage of circuit 300 to be charged is 5V, the preset value can be 5.5V, to keep away
The problem of voltage drop caused by exempting from the switch unit 170 causes charging that cannot effectively and reliably carry out.
Optionally, the concrete type of the charge collecting unit 110 is unrestricted, is configured i.e. according to actual demand
Can, the charge that circuit 200 generates occurs as long as can sense and receive the charge.In the present embodiment, it is contemplated that institute
The quantity of electric charge for stating the charge generation generation charge of circuit 200 is typically small, and the charge collecting unit 110 can be electrode plate.
Optionally, the concrete type of the charge storage elements 130 is unrestricted, is configured i.e. according to actual demand
Can, as long as the charge of the acquisition of charge collecting unit 110 can be obtained effectively and be stored.In the present embodiment, charge is sent out
The quantity of electric charge that raw circuit 200 generates charge is typically small, and the charge storage elements 130 need to carry out the storage ability of long period
Voltage value can be made to reach preset value, and then treat charging circuit 300 and charge, therefore, it is necessary to by the charge storage elements
130 are set as the electrical equipment with relatively low leakage current characteristic, for example, it may be capacitor or capacitor board or others
The rechargeable battery of Low dark curient.
With reference to Fig. 3, in the present embodiment, described control unit 150 can include voltage detector 151 and control signal hair
Raw device 153.The input terminal of the voltage detector 151 is connect with the charge storage elements 130, to detect the charge storage
The voltage value of unit 130, and first control signal is exported according to the voltage value.The input terminal of the control signal generator 153
Connect with the output terminal of the voltage detector 151, output terminal is connect with the control terminal of the switch unit 170, with according to institute
It states first control signal and exports second control signal to the switch unit 170.
Wherein, the voltage detector 151 exports high level signal when the voltage value detected is more than preset value, described
Control signal generator 153 exports square-wave signal when receiving the high level signal, and the switch unit 170 is believed in square wave
Number the high level period conducting, the low level period shutdown, with by 170 alternate conduction of switch unit with shutdown to be charged
Circuit 300 carries out clearance-type pulse charge.The voltage detector 151 exports low when the voltage value detected is less than preset value
Level signal, the control signal generator 153 export low level signal when receiving the low level signal or do not export
Signal, so that the switch unit 170 is turned off according to the signal, the charge storage elements 130 to be controlled to stop to be charged
Circuit 300 charges.
Optionally, the concrete type of the switch unit 170 is unrestricted, can be configured according to actual demand, example
Such as, can include, but are not limited to be triode, mos field effect transistor, thyristor, carborundum crystals
One kind in pipe, gallium nitride transistor, high electron mobility transistor and insulated gate bipolar transistor.
Wherein, in a kind of example, preferably described switch unit 170 is metal oxide semiconductor field effect transistor.It should
Mos field effect transistor can include grid, source electrode and drain electrode.The grid is as the switch unit
170 control terminal is connect with the output terminal of described control unit 150, and the drain electrode and the one of of source electrode are used as the switch
The input terminal of unit 170 is connect with the charge storage elements 130, another as the switch unit 170 output terminal with
Circuit 300 to be charged connects.
The mos field effect transistor is either N-type (such as N-MOS pipes) or p-type is (such as
P-MOS is managed).In the present embodiment, it is illustrated by taking N-type mos field effect transistor as an example.Wherein, the N
The grid of type metal oxide semiconductor field-effect transistor connect with the output terminal of described control unit 150, drain with it is described
Charge storage elements 130 connect, source electrode is connect as the output terminal of the charging circuit 100 with circuit 300 to be charged.By adopting
With N-type mos field effect transistor, using the low on-resistance characteristic of the transistor, institute can be effectively reduced
The power consumption of charging circuit 100 during the work time is stated, so as to reduce the use cost of charging circuit 100.
In another example, the switch unit 170 can be triode.The triode include base stage, collector and
Emitter, wherein, control terminal of the base stage as the switch unit 170, the collector and emitter one of them
Input terminal as the switch unit 170, another output terminal as the switch unit 170.
The triode is either NPN type or positive-negative-positive.In the present embodiment, by taking NPN type triode as an example
It illustrates.Wherein, the base stage of the NPN type triode is as the control terminal of the switch unit 170 and described control unit 150
Output terminal connection, collector connect with the charge storage elements 130 as the input terminal of the switch unit 170, emits
Pole is connect as the output terminal of the switch unit 170 with circuit 300 to be charged.
Further, it is contemplated that, may when the charge storage elements 130 export electric energy by the switch unit 170
There are the situation of voltage fluctuation, so cause circuit 300 to be charged in charging process easily be damaged the problem of, in the present embodiment
In, with reference to Fig. 4, the charging circuit 100 can also include voltage regulation unit 190.
Wherein, the input terminal of the voltage regulation unit 190 connect with the output terminal of the switch unit 170, output terminal conduct
The output terminal of the charging circuit 100 is connect with circuit 300 to be charged, by the electric energy exported by the switch unit 170
It is exported after carrying out voltage stabilizing processing to circuit 300 to be charged.
In conclusion charging circuit 100 provided by the utility model and charging equipment 10, by charge collecting unit 110,
The electricity that circuit 200 generates can be occurred for charge by the cooperation of charge storage elements 130, control unit 150 and switch unit 170
Lotus is charged for treating charging circuit 300, and then is realized and charge is occurred efficiently using for the charge that circuit 200 generates,
The problem of being effectively prevented from the wasting of resources greatly improves the economic performance of charging circuit 100 and charging equipment 10.Secondly,
By using square-wave signal control 170 alternate conduction of switch unit and shutdown, clearance-type pulse is carried out to treat charging circuit 300
Charging, so as to improve the efficiency of charging, further increases the economic performance of charging circuit 100 and charging equipment 10.Then,
By the way that switch unit 170 is set as N-type mos field effect transistor, there is low conducting using the transistor
The characteristic of resistance can be such that the power consumption that switch unit 170 generates at work is maintained in a relatively low range, so as to reduce
The overall power of charging circuit 100 and charging equipment 10 further increases the economy of charging circuit 100 and charging equipment 10
Characteristic.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (10)
1. a kind of charging circuit, which is characterized in that including：
As the input terminal of the charging circuit with charge circuit occurs for charge collecting unit, the input terminal of the charge collecting unit
Connection, to acquire the charge that charge occurs circuit and generates；
Charge storage elements, the input terminal of the charge storage elements are connect with the output terminal of the charge collecting unit, to obtain
The charge of the charge collecting unit acquisition, and pass through and store the charge to obtain electric energy；
Control unit, the input terminal of the control unit are connect with the charge storage elements, with according to the charge storage elements
Voltage value output control signal；
Switch unit, the control terminal of the switch unit is connect with described control unit, input terminal connects with the charge storage elements
It connects, output terminal is connect as the output terminal of the charging circuit with circuit to be charged；
Wherein, described control unit controls the switch unit when the voltage value of the charge storage elements reaches preset value
Conducting, charges so that the charge storage elements treat charging circuit by the switch unit.
2. charging circuit according to claim 1, which is characterized in that described control unit includes：
Voltage detector, the input terminal of the voltage detector are connect with the charge storage elements, to detect the charge storage
The voltage value of unit, and first control signal is exported according to the voltage value；
Control signal generator, the input terminal of the control signal generator connect with the output terminal of the voltage detector, export
End is connect with the control terminal of the switch unit, to be controlled according to the first control signal to switch unit output second
Signal；
Wherein, the voltage detector exports high level signal, the control letter when the voltage value detected is more than preset value
Number generator exports square-wave signal when receiving the high level signal, and the switch unit is in the high level of square-wave signal
Section conducting, the shutdown of low level period carry out clearance-type to treat charging circuit by the switch unit alternate conduction and shutdown
Pulse charge.
3. charging circuit according to claim 1 or 2, which is characterized in that the charge storage elements for capacitor and/or
Capacitor board.
4. charging circuit according to claim 1 or 2, which is characterized in that the switch unit is triode, metal aoxidizes
Object semiconductor field effect transistor, thyristor, silicon carbide transistor, gallium nitride transistor, high electron mobility transistor and
One kind in insulated gate bipolar transistor.
5. charging circuit according to claim 4, which is characterized in that the switch unit is partly led for N-type metal oxide
Body field-effect transistor, the grid of the N-type mos field effect transistor and the output terminal of described control unit
Connection, drain electrode is connect with the charge storage elements, source electrode is connect as the output terminal of the charging circuit with circuit to be charged.
6. charging circuit according to claim 4, which is characterized in that the switch unit be triode, the triode packet
Base stage, collector and emitter are included, wherein, control terminal of the base stage as the switch unit, the collector and transmitting
One of input terminal as the switch unit of pole, another output terminal as the switch unit.
7. charging circuit according to claim 1 or 2, which is characterized in that the charging circuit further includes：
Voltage regulation unit, the input terminal of the voltage regulation unit is connect with the output terminal of the switch unit, output terminal is as the charging
The output terminal of circuit is connect with circuit to be charged, is exported after the electric energy exported by the switch unit is carried out voltage stabilizing processing
To circuit to be charged.
8. a kind of charging equipment, which is characterized in that circuit occurs including charge and charging circuit, the charging circuit include：
As the input terminal of the charging circuit with charge circuit occurs for charge collecting unit, the input terminal of the charge collecting unit
Connection, to acquire the charge that charge occurs circuit and generates；
Charge storage elements, the input terminal of the charge storage elements are connect with the output terminal of the charge collecting unit, to obtain
The charge of the charge collecting unit acquisition, and pass through and store the charge to obtain electric energy；
Control unit, the input terminal of the control unit are connect with the charge storage elements, with according to the charge storage elements
Voltage value output control signal；
Switch unit, the control terminal of the switch unit is connect with described control unit, input terminal connects with the charge storage elements
It connects, output terminal is connect as the output terminal of the charging circuit with circuit to be charged；
Wherein, described control unit controls the switch unit when the voltage value of the charge storage elements reaches preset value
Conducting, charges so that the charge storage elements treat charging circuit by the switch unit.
9. charging equipment according to claim 8, which is characterized in that described control unit includes：
Voltage detector, the input terminal of the voltage detector are connect with the charge storage elements, to detect the charge storage
The voltage value of unit, and first control signal is exported according to the voltage value；
Control signal generator, the input terminal of the control signal generator connect with the output terminal of the voltage detector, export
End is connect with the control terminal of the switch unit, to be controlled according to the first control signal to switch unit output second
Signal；
Wherein, the voltage detector exports high level signal, the control letter when the voltage value detected is more than preset value
Number generator exports square-wave signal when receiving the high level signal, and the switch unit is in the high level of square-wave signal
Section conducting, the shutdown of low level period carry out clearance-type to treat charging circuit by the switch unit alternate conduction and shutdown
Pulse charge.
10. charging equipment according to claim 8 or claim 9, which is characterized in that the charge occurs circuit and takes electricity electricity for radio frequency
One kind in road, electromagnetic coupling circuit, triboelectrification circuit, field coupling circuit, photovoltaic conversion circuit and piezoelectricity conversion circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721841582.1U CN207559657U (en) | 2017-12-26 | 2017-12-26 | Charging circuit and charging equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721841582.1U CN207559657U (en) | 2017-12-26 | 2017-12-26 | Charging circuit and charging equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207559657U true CN207559657U (en) | 2018-06-29 |
Family
ID=62661001
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721841582.1U Expired - Fee Related CN207559657U (en) | 2017-12-26 | 2017-12-26 | Charging circuit and charging equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207559657U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107887957A (en) * | 2017-12-26 | 2018-04-06 | 四川璧虹众杰科技有限公司 | Charging circuit and charging equipment |
| WO2022127413A1 (en) * | 2020-12-14 | 2022-06-23 | Oppo广东移动通信有限公司 | Charging circuit, power adapter and charging system |
-
2017
- 2017-12-26 CN CN201721841582.1U patent/CN207559657U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107887957A (en) * | 2017-12-26 | 2018-04-06 | 四川璧虹众杰科技有限公司 | Charging circuit and charging equipment |
| WO2022127413A1 (en) * | 2020-12-14 | 2022-06-23 | Oppo广东移动通信有限公司 | Charging circuit, power adapter and charging system |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180629 Termination date: 20211226 |
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| CF01 | Termination of patent right due to non-payment of annual fee |