CN205160107U - Control circuit of adapter - Google Patents
Control circuit of adapter Download PDFInfo
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- CN205160107U CN205160107U CN201520763464.8U CN201520763464U CN205160107U CN 205160107 U CN205160107 U CN 205160107U CN 201520763464 U CN201520763464 U CN 201520763464U CN 205160107 U CN205160107 U CN 205160107U
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Abstract
The utility model discloses a control circuit of adapter. Control circuit of adapter includes: power route selection circuit, charging circuit and current control circuit, the power route selection circuit be used for, when detecting the power output of adapter holds when exporting operating voltage control the adapter is supplied power, when detecting the power output of adapter holds when not exporting operating voltage control the battery is supplied power, charging circuit's input is connected the output of adapter, charging circuit is used for control the adapter is given the battery charges, the power of adapter is connected to the first input end of current control circuit, the second input of current control circuit is connected system load's operating voltage signal, the output of current control circuit to charging circuit exports control voltage, control voltage is used for, according to system load's size, control charging circuit's charging current's size.
Description
Technical field
The utility model relates to adaptor power supplies technology, particularly a kind of control circuit of adapter.
Background technology
Current, the power consumption of increasing electronic product is increasing, and considerable electronic product all needs configuration adapters Adapter to charge the battery.When a product runs in different modes, power consumption is also different.When adapter inserts, adapter should be powered to product, charges the battery again.When product operate in charge under large power consumption mode simultaneously time, very large burden can be caused to cause heating severe to adapter, can cause danger time serious.
Utility model content
The control circuit of a kind of adapter that the utility model provides, with the size regulating adapter to carry out the charging current of charging to battery, the load avoiding adapter is excessive.
For achieving the above object, the technical solution of the utility model is achieved in that
The utility model provides a kind of control circuit of adapter, and described control circuit comprises: power source path selection circuit, charging circuit and current control circuit;
The output of the first input end Payload attach fitting of described power source path selection circuit; Second input of described power source path selection circuit connects the first end of battery, and the output of described power source path selection circuit is connected with the operating voltage signal of system load; Second end ground connection of described battery; Described power source path selection circuit is used for, and when the power output end output services voltage of described adapter being detected, controlling described adapter and powering; When detecting that the power output end of described adapter does not have output services voltage, controlling described battery and powering;
The input of described charging circuit connects the output of described adapter; The output of described charging circuit connects the first end of described battery; Described charging circuit charges to described battery for controlling described adapter;
The power supply of the first input end Payload attach fitting of described current control circuit; Second input of described current control circuit connects the operating voltage signal of described system load; The output of described current control circuit exports control voltage to described charging circuit; Described control voltage is used for, and according to the size of described system load, controls the size of the charging current of described charging circuit.
Optionally, described power source path selection circuit is:
The grid of the second field effect transistor connects the first end of the 8th resistance and the first end of the 9th resistance respectively; The source electrode of described second field effect transistor connects the first end of described battery; The drain electrode of described second field effect transistor is by the 7th capacity earth;
Second end ground connection of described 8th resistance; Second end of described 9th resistance connects the output of described adapter;
Second end of described 9th resistance is as the first input end of described power source path selection circuit; The source electrode of described second field effect transistor is as the second input of described power source path selection circuit; The drain electrode of described second field effect transistor is as the output of described power source path selection circuit.
Optionally, described charging circuit also comprises: bidirectional diode;
The first end of described bidirectional diode connects the grid of described 3rd field effect transistor; Second end of described bidirectional diode connects the source electrode of described 3rd field effect transistor.
Optionally, described charging circuit also comprises: the 3rd triode;
The positive pole of described 3rd triode connects the drain electrode of described 3rd field effect transistor; The negative pole of described 3rd triode connects the source electrode of described 3rd field effect transistor.
Optionally, described charging circuit is:
The base stage of the first triode connects the first end of controllable accurate source of stable pressure and the first end of the 3rd resistance respectively; The emitter of described first triode connects the first end of the second resistance and the 3rd end of described controllable accurate source of stable pressure respectively; The collector electrode of the first triode connects described second end of the 3rd resistance and the output of described adapter respectively;
Second end of described second resistance connects the second end of described controllable accurate source of stable pressure and the positive pole of described first voltage-stabiliser tube respectively; The negative pole of described first voltage-stabiliser tube connects the first end of described battery;
The input of the very described charging circuit of current collection of described first triode; The negative pole of described first voltage-stabiliser tube is the output of described charging circuit.
Optionally, described charging circuit is:
The grid of the 3rd field effect transistor connects the first end of controllable accurate source of stable pressure and the first end of the 3rd resistance respectively; The source electrode of described 3rd field effect transistor connects the first end of the second resistance and the 3rd end of described controllable accurate source of stable pressure respectively; The drain electrode of the 3rd field effect transistor connects described second end of the 3rd resistance and the output of described adapter respectively;
Second end of described second resistance connects the second end of described controllable accurate source of stable pressure and the positive pole of described first voltage-stabiliser tube respectively; The negative pole of described first voltage-stabiliser tube connects the first end of described battery;
The drain electrode of described 3rd field effect transistor is the input of described charging circuit; The negative pole of described first voltage-stabiliser tube is the output of described charging circuit.
Optionally, described current control circuit is:
The positive input of operational amplifier connects the first end of the 14 resistance and the first end of the 15 resistance respectively; The negative input of institute's operational amplifier connects the first end of the 12 resistance and the first end of the 13 resistance respectively; The output of described operational amplifier connects the second end of described 13 resistance;
Second end of described 12 resistance connects the first end of the first resistance and the positive pole of the second voltage-stabiliser tube respectively;
Second end of described first resistance is the first input end of described current control circuit; The negative pole of described second voltage-stabiliser tube is the second input of described current control circuit; The output of described operational amplifier is the output of described current control circuit, exports described control voltage;
Optionally, described charging circuit also comprises:
First field effect transistor, the grid of described first field effect transistor connects described control voltage by the 5th resistance; The grid of described first field effect transistor is by the 6th grounding through resistance; The drain electrode of described first field effect transistor connects the first end of the 4th resistance; The source electrode of described first field effect transistor connects the positive pole of described first voltage-stabiliser tube, and the second end of described 4th resistance connects the first end of described second resistance.
Described current control circuit also comprises:
First electric capacity, the first end of described first electric capacity connects the output of described adapter; Second end ground connection of described first electric capacity.
Optionally, described current control circuit also comprises:
Second electric capacity, the first end of described second electric capacity connects the positive pole of described second voltage stabilizing didoe; Second end ground connection of described second electric capacity;
Optionally, described power source path selection circuit also comprises:
6th electric capacity; The first end of described 6th electric capacity connects the first end of described battery; Second end ground connection of described 6th electric capacity.
The beneficial effect of the utility model embodiment is:
In the utility model embodiment, control circuit comprises: power source path selection circuit, charging circuit and current control circuit; Described power source path selection circuit in, when the power output end output services voltage of described adapter being detected, controlling described adapter and powering; When detecting that the power output end of described adapter does not have output services voltage, controlling described battery and powering; Described charging circuit charges to described battery for controlling described adapter; Described current control circuit is used for, and control the size of the charging current of charging circuit, therefore, control circuit can regulate adapter to carry out the size of the charging current of charging to battery, and the operating power avoiding adapter is excessive.
Accompanying drawing explanation
The schematic diagram of the control circuit of the adapter that Fig. 1 provides for the utility model embodiment;
The schematic diagram of the power source path selection circuit 11 in the control circuit of the adapter that Fig. 2 provides for the utility model embodiment one;
The schematic diagram of the charging circuit 12 in the control circuit of the adapter that Fig. 3 provides for the utility model one embodiment;
The schematic diagram of the charging circuit 12 in the control circuit of the adapter that Fig. 4 provides for another embodiment of the utility model;
Power source path selection circuit 11 in the control circuit of the adapter that Fig. 5 provides for the utility model embodiment and the schematic diagram of current control circuit 13;
The schematic diagram of the charging circuit 12 corresponding to Fig. 5 that Fig. 6 provides for the utility model one embodiment and portion of electrical current control circuit 13;
The schematic diagram of the charging circuit 12 corresponding to Fig. 5 that Fig. 7 provides for another embodiment of the utility model and portion of electrical current control circuit 13;
The principle schematic of U1TL431 in the control circuit of the adapter that Fig. 8 provides for the utility model embodiment.
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearly, below in conjunction with accompanying drawing, the utility model execution mode is described in further detail.
The utility model provides a kind of control circuit of adapter, and as shown in Figure 1, described control circuit comprises: power source path selection circuit 11, charging circuit 12 and current control circuit 13;
The output of the first input end Payload attach fitting of described power source path selection circuit 11, that is, the output signal ADAPTER_POWER of Payload attach fitting; Second input of described power source path selection circuit 11 connects the first end of battery, and that is, connect the output signal VCC_BAT of battery, the output of described power source path selection circuit 11 is connected with the operating voltage signal SYS_POWER of system load; Second end ground connection of described battery; Described power source path selection circuit 11 for, when the power output end output services voltage of described adapter being detected, controlling described adapter and powering; When detecting that the power output end of described adapter does not have output services voltage, controlling described battery and powering;
The input of described charging circuit 12 connects the output of described adapter, that is, and the output signal ADAPTER_POWER of Payload attach fitting; The output of described charging circuit connects the first end of described battery; Described charging circuit charges to described battery for controlling described adapter;
The power supply of the first input end Payload attach fitting of described current control circuit 13, that is, the output signal ADAPTER_POWER of Payload attach fitting; Second input of described current control circuit 13 connects the operating voltage signal SYS_POWER of described system load; The output of described current control circuit exports control voltage VCO to described charging circuit; Described control voltage VCO is used for, and according to the size of described system load, controls the size of the charging current of described charging circuit.
In above-described embodiment, control circuit comprises: power source path selection circuit, charging circuit and current control circuit; Described power source path selection circuit in, when the power output end output services voltage of described adapter being detected, controlling described adapter and powering; When detecting that the power output end of described adapter does not have output services voltage, controlling described battery and powering; Described charging circuit charges to described battery for controlling described adapter; Described current control circuit is used for, and control the size of the charging current of charging circuit, therefore, control circuit can regulate adapter to carry out the size of the charging current of charging to battery, and the operating power avoiding adapter is excessive.
As shown in Figure 2, described power source path selection circuit 11 is:
The grid of the second field effect transistor Q2 connects the first end of the 8th resistance R8 and the first end of the 9th resistance R9 respectively; The source electrode of described second field effect transistor Q2 connects the first end of described battery J2; The drain electrode of described second field effect transistor Q2 is by the 7th capacity earth;
The second end ground connection of described 8th resistance R8; Second end of described 9th resistance R9 connects the output of described adapter;
Second end of described 9th resistance R9 is as the first input end of described power source path selection circuit; The source electrode of described second field effect transistor Q2 is as the second input of described power source path selection circuit; The drain electrode of described second field effect transistor Q2 is as the output of described power source path selection circuit.
In order to make signal more stable, optionally, as shown in Figure 2, described power source path selection circuit also comprises:
6th electric capacity C6; The first end of described 6th electric capacity C6 connects the first end of described battery; The second end ground connection of described 6th electric capacity C6.
In above-mentioned power source path selection circuit 11, when adapter Adapter inserts, the grid G pole of the second field effect transistor Q2 exports as high level, and the second field effect transistor Q2 closes, and now system is powered by adapter.Meanwhile, because the second field effect transistor Q2 closes, the electric current of adapter is prevented to flow into battery battery by the second field effect transistor Q2.
After adapter Adapter pulls out, the grid G pole of the second field effect becomes low level, and the second field effect transistor Q2 opens, and battery battery to system power supply, achieves the path management of power supply by the second field effect transistor Q2.
The Q1 of charging circuit can be triode, can be also field effect transistor, illustrate respectively below.
In one embodiment, as shown in Figure 3, described charging circuit is:
The base stage of the first triode Q1 connects the first end of controllable accurate source of stable pressure U1 and the first end of the 3rd resistance R3 respectively; The emitter of described first triode Q1 connects the first end of the second resistance R2 and the 3rd end of described controllable accurate source of stable pressure U1 respectively; The collector electrode of the first triode Q1 connects described second end of the 3rd resistance R3 and the output of described adapter respectively;
Second end of described second resistance R2 connects second end of described controllable accurate source of stable pressure U1 and the positive pole of described first voltage-stabiliser tube D1 respectively; The negative pole of described first voltage-stabiliser tube D1 connects the first end of described battery J2;
The input of the very described charging circuit of current collection of described first triode Q1; The negative pole of described first voltage-stabiliser tube D1 is the output of described charging circuit.
In another embodiment, as shown in Figure 4, described charging circuit is:
The grid of the 3rd field effect transistor Q3 connects the first end of controllable accurate source of stable pressure U1 and the first end of the 3rd resistance R3 respectively; The source electrode of described 3rd field effect transistor connects the first end of the second resistance R2 and the 3rd end of described controllable accurate source of stable pressure U1 respectively; The drain electrode of the 3rd field effect transistor Q3 connects described second end of the 3rd resistance R3 and the output of described adapter respectively;
Second end of described second resistance R2 connects second end of described controllable accurate source of stable pressure U1 and the positive pole of described first voltage-stabiliser tube D1 respectively; The negative pole of described first voltage-stabiliser tube D1 connects the first end of described battery;
The drain electrode of described 3rd field effect transistor Q3 is the input of described charging circuit; The negative pole of described first voltage-stabiliser tube D1 is the output of described charging circuit.
Optionally, as shown in Figure 4, described charging circuit also comprises: bidirectional diode D4;
The first end of described bidirectional diode D4 connects the grid of described 3rd field effect transistor Q3; Second end of described bidirectional diode D4 connects the source electrode of described 3rd field effect transistor Q3.
Optionally, as shown in Figure 4, described charging circuit also comprises: the 3rd triode D3;
The positive pole of described 3rd triode D3 connects the drain electrode of described 3rd field effect transistor Q3; The negative pole of described 3rd triode D3 connects the source electrode of described 3rd field effect transistor Q3.
As shown in Figure 5, described current control circuit is:
The positive input of operational amplifier U2-A connects the first end of the 14 resistance R14 and the first end of the 15 resistance R15 respectively; The negative input of institute operational amplifier U2-A connects the first end of the 12 resistance R12 and the first end of the 13 resistance R13 respectively; The output of described operational amplifier U2-A connects second end of described 13 resistance R13;
Second end of described 12 resistance R12 connects the first end of the first resistance R1 and the positive pole of the second voltage-stabiliser tube D2 respectively;
Second end of described first resistance R1 is the first input end of described current control circuit; The negative pole of described second voltage-stabiliser tube D2 is the second input of described current control circuit; The U2-A output of described operational amplifier is the output of described current control circuit, exports described control voltage.
Accordingly, as shown in Figure 6 and Figure 7, described charging circuit also comprises:
The grid of the first field effect transistor Q1, described first field effect transistor Q1 connects described control voltage by the 5th resistance; The grid of described first field effect transistor Q1 is by the 6th grounding through resistance; The drain electrode of described first field effect transistor Q1 connects the first end of the 4th resistance; The source electrode of described first field effect transistor Q1 connects the positive pole of described first voltage-stabiliser tube D1, and second end of described 4th resistance R4 connects the first end of described second resistance R2.
In above-mentioned charging circuit and current control circuit, when system works is under low-power consumption mode, the electric current of power supply SYS_POWER is less; When system works is under large power consumption mode, the electric current of power supply SYS_POWER is larger.The small voltage detected is amplified by operational amplifier U2-A.When inserting adapter Adapter and charging, the electric current of the operating voltage signal SYS_POWER of operational amplifier U2-A real-time monitoring system load, the first resistance R1 is current sense resistor, and this resistance, by larger current, need adopt high-power resistance.Operational amplifier U2-A, the 12 resistance R12, the 13 resistance R13, the 14 resistance R14, the 15 resistance R15 etc. form amplifying circuit, the pressure drop on the first resistance R1 are amplified to the scope that applicable first field effect transistor Q1 opens.
Controllable accurate source of stable pressure U1 and the 3rd field effect transistor Q3 forms constant-current source, for battery provides constant electric current.As shown in Figure 8, the voltage between reference field and positive pole is reference voltage 2.5v to the internal structure of U1TL431, and the voltage therefore on the left of the 4th resistance R4 and between the source S pole of the 3rd field effect transistor Q3 is constant voltage 2.5v, therefore electric current I=Vref/R.Because reference voltage 2.5v is constant, therefore, electric current changes with the change of resistance.
When system power is lower than set point, namely the load of system power supply (the operating voltage signal SYS_POWER of system load) is less, when the voltage VCO that operational amplifier U2-A amplifies makes the 4th resistance R4 conducting, the then resistance R=R2//R4 of parallel circuits, after parallel connection, the resistance of the resistance R< second resistance R2 of parallel circuits, therefore, charging current becomes large.
And when the load of system power supply is excessive, control voltage VCO diminishes, close the first triode Q1, then charging current setting resistance is R2, and therefore, charging current diminishes.
Can find out, in foregoing circuit, by the resistance of adjusting resistance, regulate the size of charging current.
In order to make signal more stable, as shown in Figure 5, described current control circuit also comprises:
The first end of the first electric capacity C1, described first electric capacity C1 connects the output of described adapter; The second end ground connection of described first electric capacity C1.
In order to make circuit more stable, optionally, as shown in Figure 5, described current control circuit also comprises:
The first end of the second electric capacity C2, described second electric capacity C2 connects the positive pole of described second voltage stabilizing didoe; The second end ground connection of described second electric capacity C2.
The utility model provides a kind of control circuit of adapter, adopts smart circuit, by the electric current of detection system power supply, regulates the size of charging current in real time, while ensureing system power supply, guarantees that power supply adaptor can not transship, ensure that the safety of circuit.
The foregoing is only preferred embodiment of the present utility model, be not intended to limit protection range of the present utility model.All do within spirit of the present utility model and principle any amendment, equivalent replacement, improvement etc., be all included in protection range of the present utility model.
Claims (10)
1. a control circuit for adapter, is characterized in that, described control circuit comprises: power source path selection circuit, charging circuit and current control circuit;
The output of the first input end Payload attach fitting of described power source path selection circuit; Second input of described power source path selection circuit connects the first end of battery, and the output of described power source path selection circuit is connected with the operating voltage signal of system load; Second end ground connection of described battery; Described power source path selection circuit is used for, and when the power output end output services voltage of described adapter being detected, controlling described adapter and powering; When detecting that the power output end of described adapter does not have output services voltage, controlling described battery and powering;
The input of described charging circuit connects the output of described adapter; The output of described charging circuit connects the first end of described battery; Described charging circuit charges to described battery for controlling described adapter;
The power supply of the first input end Payload attach fitting of described current control circuit; Second input of described current control circuit connects the operating voltage signal of described system load; The output of described current control circuit exports control voltage to described charging circuit; Described control voltage is used for, and according to the size of described system load, controls the size of the charging current of described charging circuit.
2. control circuit according to claim 1, is characterized in that, described power source path selection circuit is:
The grid of the second field effect transistor connects the first end of the 8th resistance and the first end of the 9th resistance respectively; The source electrode of described second field effect transistor connects the first end of described battery; The drain electrode of described second field effect transistor is by the 7th capacity earth;
Second end ground connection of described 8th resistance; Second end of described 9th resistance connects the output of described adapter;
Second end of described 9th resistance is as the first input end of described power source path selection circuit; The source electrode of described second field effect transistor is as the second input of described power source path selection circuit; The drain electrode of described second field effect transistor is as the output of described power source path selection circuit.
3. control circuit according to claim 2, is characterized in that, described charging circuit is:
The base stage of the first triode connects the first end of controllable accurate source of stable pressure and the first end of the 3rd resistance respectively; The emitter of described first triode connects the first end of the second resistance and the 3rd end of described controllable accurate source of stable pressure respectively; The collector electrode of the first triode connects described second end of the 3rd resistance and the output of described adapter respectively;
Second end of described second resistance connects the second end of described controllable accurate source of stable pressure and the positive pole of the first voltage-stabiliser tube respectively; The negative pole of described first voltage-stabiliser tube connects the first end of described battery;
The input of the very described charging circuit of current collection of described first triode; The negative pole of described first voltage-stabiliser tube is the output of described charging circuit.
4. control circuit according to claim 2, is characterized in that, described charging circuit is:
The grid of the 3rd field effect transistor connects the first end of controllable accurate source of stable pressure and the first end of the 3rd resistance respectively; The source electrode of described 3rd field effect transistor connects the first end of the second resistance and the 3rd end of described controllable accurate source of stable pressure respectively; The drain electrode of the 3rd field effect transistor connects described second end of the 3rd resistance and the output of described adapter respectively;
Second end of described second resistance connects the second end of described controllable accurate source of stable pressure and the positive pole of the first voltage-stabiliser tube respectively; The negative pole of described first voltage-stabiliser tube connects the first end of described battery;
The drain electrode of described 3rd field effect transistor is the input of described charging circuit; The negative pole of described first voltage-stabiliser tube is the output of described charging circuit.
5. control circuit according to claim 4, is characterized in that, described charging circuit also comprises: bidirectional diode;
The first end of described bidirectional diode connects the grid of described 3rd field effect transistor; Second end of described bidirectional diode connects the source electrode of described 3rd field effect transistor.
6. control circuit according to claim 4, is characterized in that, described charging circuit also comprises: the 3rd triode;
The positive pole of described 3rd triode connects the drain electrode of described 3rd field effect transistor; The negative pole of described 3rd triode connects the source electrode of described 3rd field effect transistor.
7. the control circuit according to claim 3 or 4, is characterized in that,
Described current control circuit is:
The positive input of operational amplifier connects the first end of the 14 resistance and the first end of the 15 resistance respectively; The negative input of institute's operational amplifier connects the first end of the 12 resistance and the first end of the 13 resistance respectively; The output of described operational amplifier connects the second end of described 13 resistance;
Second end of described 12 resistance connects the first end of the first resistance and the positive pole of the second voltage-stabiliser tube respectively;
Second end of described first resistance is the first input end of described current control circuit; The negative pole of described second voltage-stabiliser tube is the second input of described current control circuit; The output of described operational amplifier is the output of described current control circuit, exports described control voltage;
Described charging circuit also comprises:
First field effect transistor, the grid of described first field effect transistor connects described control voltage by the 5th resistance; The grid of described first field effect transistor is by the 6th grounding through resistance; The drain electrode of described first field effect transistor connects the first end of the 4th resistance; The source electrode of described first field effect transistor connects the positive pole of described first voltage-stabiliser tube, and the second end of described 4th resistance connects the first end of described second resistance.
8. control circuit according to claim 5, is characterized in that, described current control circuit also comprises:
First electric capacity, the first end of described first electric capacity connects the output of described adapter; Second end ground connection of described first electric capacity.
9. control circuit according to claim 6, is characterized in that, described current control circuit also comprises:
Second electric capacity, the first end of described second electric capacity connects the positive pole of the second voltage stabilizing didoe; Second end ground connection of described second electric capacity.
10. control circuit according to claim 2, is characterized in that, described power source path selection circuit also comprises:
6th electric capacity; The first end of described 6th electric capacity connects the first end of described battery; Second end ground connection of described 6th electric capacity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520763464.8U CN205160107U (en) | 2015-09-29 | 2015-09-29 | Control circuit of adapter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520763464.8U CN205160107U (en) | 2015-09-29 | 2015-09-29 | Control circuit of adapter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205160107U true CN205160107U (en) | 2016-04-13 |
Family
ID=55695758
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520763464.8U Withdrawn - After Issue CN205160107U (en) | 2015-09-29 | 2015-09-29 | Control circuit of adapter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205160107U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105186621A (en) * | 2015-09-29 | 2015-12-23 | 青岛歌尔声学科技有限公司 | Control circuit of adapter |
| CN116048231A (en) * | 2023-02-15 | 2023-05-02 | 山克新能源科技（深圳）有限公司 | Lithium battery power module for supplying power to MINI-PC |
-
2015
- 2015-09-29 CN CN201520763464.8U patent/CN205160107U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105186621A (en) * | 2015-09-29 | 2015-12-23 | 青岛歌尔声学科技有限公司 | Control circuit of adapter |
| CN116048231A (en) * | 2023-02-15 | 2023-05-02 | 山克新能源科技（深圳）有限公司 | Lithium battery power module for supplying power to MINI-PC |
| CN116048231B (en) * | 2023-02-15 | 2024-03-15 | 山克新能源科技（深圳）有限公司 | Lithium battery power module for supplying power to MINI-PC |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160413 Effective date of abandoning: 20181023 |