CN208127362U - The power supply wake-up control circuit of electric car - Google Patents
The power supply wake-up control circuit of electric car Download PDFInfo
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- CN208127362U CN208127362U CN201820474548.3U CN201820474548U CN208127362U CN 208127362 U CN208127362 U CN 208127362U CN 201820474548 U CN201820474548 U CN 201820474548U CN 208127362 U CN208127362 U CN 208127362U
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- 230000005611 electricity Effects 0.000 claims description 11
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- 239000004065 semiconductor Substances 0.000 description 4
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
The utility model relates to a kind of power supply wake-up control circuits of electric car, the clock pulse signal that the power supply unit including receiving connecting electric automobile is sent and the processor for waking up the power supply wake-up circuit of battery management system, the signal deteching circuit of the detection clock pulse signal and output test result and the reception testing result；The power supply wake-up circuit is connect with the clock pulse signal output end of the power supply unit, is also used to connect the battery management system of the electric car；The signal deteching circuit is connect with the clock pulse signal output end of the power supply unit, is also connected with the processor.By receiving the clock pulse signal of power supply unit transmission and directly waking up battery management system, without detecting to received signal, to simplify circuit structure, circuit cost of implementation is reduced.
Description
Technical field
The utility model relates to electric car charging technique fields, wake up control more particularly to a kind of power supply of electric car
Circuit processed.
Background technique
Electric car refers to using vehicle power supply as power, with the vehicle of motor driven wheels travel.Opposite orthodox car comes
It says, electric car pollution on the environment is smaller, therefore, with the prevalence of low-carbon economy model, electric car the relevant technologies
Also it has been greatly developed.When electric car is charged under ignition switch off state, need to its BMS (Battery
Management System, battery management system) it is waken up；Furthermore, it is desirable to which controller of vehicle judges charging connection equipment
CP (Clock Pulse, clock pulses) signal dutyfactor whether is fully connected and detected to confirm the maximum of current power supply unit
Supply current.
Traditional electric car power supply awakening method is to realize the wake-up function of electric car by increasing monitoring circuit
Energy.When electric car is standby mode, monitoring circuit is in a dormant state；When monitoring circuit receives external equipment transmission
Signal, and when judging received signal for useful signal, which wakes up the BMS of electric car.
However, above-mentioned wake-up mode needs to increase monitoring circuit, that is, need to complete the wake-up function of BMS by adjunct circuit
Can, and signal receiving circuit and signal deteching circuit are included at least in the monitoring circuit, so as to cause above-mentioned wake-up mode
Used in circuit structure it is complex, circuit cost of implementation is high.
Utility model content
Based on this, it is necessary to for the complex and costly problem of circuit in traditional technology, it is simpler to provide a kind of structure
Electric car power supply wake-up control circuit.
A kind of power supply wake-up control circuit of electric car, including：Receive the power supply unit transmission of connecting electric automobile
Clock pulse signal simultaneously wakes up the power supply wake-up circuit of battery management system, the detection clock pulse signal and exports detection knot
The signal deteching circuit of fruit and the processor for receiving the testing result；
The power supply wake-up circuit is connect with the clock pulse signal output end of the power supply unit, is also used to connect described
The battery management system of electric car；
The signal deteching circuit is connect with the clock pulse signal output end of the power supply unit, is also connected with the processing
Device.
The power supply wake-up control circuit of above-mentioned electric car, including receive connecting electric automobile power supply unit send when
Clock signal simultaneously wakes up the power supply wake-up circuit of battery management system, detects the letter of clock pulse signal and output test result
Number detection circuit and the processor for receiving testing result；Power supply wake-up circuit and the clock pulse signal output end of power supply unit connect
It connects, is also used to the battery management system of connecting electric automobile；Signal deteching circuit and the clock pulse signal of power supply unit export
End connection, is also connected with processor.By receive power supply unit send clock pulse signal and directly wake-up battery management system,
Without detecting to received signal, to simplify circuit structure, circuit cost of implementation is reduced.
Detailed description of the invention
Fig. 1 is the circuit structure diagram of the power supply wake-up control circuit of electric car in one embodiment；
Fig. 2 is the physical circuit figure of the power supply wake-up control circuit of electric car in one embodiment.
Specific embodiment
In one embodiment, a kind of power supply wake-up control circuit of electric car is provided, as shown in Figure 1, the power supply is called out
Awake control circuit includes power supply wake-up circuit 100, signal deteching circuit 200 and processor 300.
Power supply wake-up circuit 100 is connect with the clock pulse signal output end of the power supply unit of connecting electric automobile, is also used
In the battery management system of connecting electric automobile, power supply wake-up circuit 100 is used to receive the clock pulses letter of power supply unit transmission
Number and wake up battery management system.Signal deteching circuit 200 is connect with the clock pulse signal output end of power supply unit, is also connected with
Processor 300, signal deteching circuit 200 is for detecting clock pulse signal and output test result to processor 300.
According to national standard GBT18487.1-2015 to the regulation and requirement of charging system for electric automobile, when electric car is in point
When being charged under fiery switch OFF state, controller of vehicle is needed to judge whether charging connection equipment is fully connected and detects
CP signal (PWM) duty ratio confirms the maximum supply current of current power supply unit.And existed by the CP signal that power supply unit provides
Signal mode there are two types of mainly having in different control sequentials when electric car charges：First is that CP is 12VDC signal mode, second is that
CP is PWM wave signal mode.Therefore, it needs under its ignition switch off state when electric car charges first to its cell tube
Reason system is waken up, and then carries out Detection & Controling to the CP signal that power supply unit issues.Electronic vapour provided in this embodiment
In the power supply wake-up control circuit of vehicle, on the one hand, power supply wake-up circuit 100 directly wakes up battery management system by CP signal,
On the other hand, signal deteching circuit 200 is completed at the same time the detection work of CP signal.
In the present embodiment, processor 300 can be display or save the testing result of signal deteching circuit 200, can be with
The control signal for clock pulse signal to be adjusted is exported according to testing result.
In one embodiment, the power supply wake-up control circuit of electric car further includes signal control circuit 400, signal control
Circuit 400 processed and processor 300 with connect, be also used to connect the clock pulse signal output end of power supply unit, processor 300 is used
In outputing control signals to signal control circuit 400 according to testing result, signal control circuit 400 is for receiving control signal simultaneously
According to control Signal Regulation clock pulse signal.In the power supply wake-up control circuit of electric car provided in this embodiment, logical
Cross power supply wake-up circuit 100 directly wake up battery management system while, pass through signal control circuit 400 complete CP signal control
Work processed.
In one embodiment, as shown in Fig. 2, the power supply wake-up control circuit further includes first diode D1, the one or two
Pole pipe D1 anode and the clock pulse signal output end of power supply unit connection (passing through the port CP-OUT), first diode D1 cathode
It is connect respectively with power supply wake-up circuit 100, signal control circuit 400 and signal deteching circuit 200.First diode D1 is counnter attack
To protection diode.
In one embodiment, power supply wake-up circuit 100 includes first capacitor C1, the second diode D2, first resistor R1,
Second resistance R2, first switch tube Q1,3rd resistor R3, second switch Q2 and the 4th resistance R4.
The connection of the clock pulse signal output end of the one end first capacitor C1 and power supply unit, the first capacitor C1 other end and the
The connection of two diode D2 anodes, the second diode D2 cathode are connect with the one end first resistor R1 and the one end second resistance R2 respectively,
First resistor R1 other end ground connection, the second resistance R2 other end are connect with the control terminal of first switch tube Q1, first switch tube Q1
Output end ground connection, the input terminal of first switch tube Q1 is connected to the one end 3rd resistor R3, and the 3rd resistor R3 other end is connected to
The output end of the control terminal of second switch Q2, second switch Q2 is connected to the power output end of battery management system
(port 12VOUTPUT), the input terminal of second switch Q2 are connected to the power input of the battery management system (end 12VINPUT
Mouthful).4th one end resistance R4 is connected to the common end of 3rd resistor R3 Yu second switch Q2, the connection of the 4th resistance R4 other end
To the common end of second switch Q2 and power input.Wherein, the second diode D2 be rectifier diode, first resistor R1 and
Second resistance R2 plays the role of current limliting partial pressure, and 3rd resistor R3 and the 4th resistance R4 play current limliting.
The concrete type of first switch tube Q1 and second switch Q2 is not unique, can be metal-oxide-semiconductor or triode.Into one
Step, first switch tube Q1 is N-channel MOS pipe in the present embodiment, and the grid of first switch tube Q1 is control terminal, first switch tube
The drain electrode of Q1 is input terminal, and the source electrode of first switch tube Q1 is output end.Second switch Q2 is P-channel metal-oxide-semiconductor, second switch
The grid of pipe Q2 is control terminal, and the drain electrode of second switch Q2 is output end, and the source electrode of second switch Q2 is input terminal.
In one embodiment, power supply wake-up circuit 100 further includes the second capacitor C2.Second one end capacitor C2 is connected to
The common end of two resistance R2 and first switch tube Q1, second capacitor C2 other end ground connection.Second capacitor C2 plays energy storage filtering
Effect.
In one embodiment, power supply wake-up circuit 100 further includes third zener diode D3, third zener diode D3
Anode is connected to the common end of 3rd resistor R3 Yu second switch Q2, and third zener diode D3 cathode is connected to second switch
The common end of pipe Q2 and power input.Third zener diode D3 plays the role of voltage-stabilizing protection.
In one embodiment, the working principle of power supply wake-up circuit 100 is：The CP signal initial shape of power supply unit output
State is 12VDC signal, due to the presence of first capacitor C1, is being connected CP signal moment, and first capacitor C1 is equivalent to short circuit, CP letter
Number a CP wake-up signal is provided so as to waking up BMS by first capacitor C1.Specifically, when connection moment CP signal passes through
First capacitor C1 and first diode D1 rectification is formed with first resistor R1 to be divided, and in second resistance R2 left port, there are a high electricity
Ordinary mail number, this high level signal make the grid of first switch tube Q1 after second resistance R2 current limliting and the second capacitor C2 filtering
High level signal is to make first switch tube Q1 be connected.After first switch tube Q1 conducting, then second switch Q2 grid can be made electric
Pressure, which is drawn by first switch tube Q1 to low level, is connected second switch Q2, and then wakes up BMS.
In one embodiment, signal deteching circuit 200 includes filter circuit 210, and the 5th zener diode D5, the 4th opens
Close pipe Q4 and the tenth resistance R10.
210 one end of filter circuit is connected to the clock pulse signal output end of power supply unit, 210 other end of filter circuit point
Not Lian Jie the 5th zener diode D5 cathode and the 4th switching tube Q4 control terminal, the 5th zener diode D5 anode is connected to
The input terminal of the output end of 4th switching tube Q4, the 4th switching tube Q4 is respectively connected to the tenth one end resistance R10 and processor 300
(passing through the port CP-IN), the tenth resistance R10 other end are connected to analog power (+5V-AVCC).5th zener diode D5 rises
The effect protected to clamper, the tenth resistance R10 are the pull-up resistor of the 4th switching tube Q4.
The concrete type of 4th switching tube Q4 is not unique, can be metal-oxide-semiconductor or triode.Further, the present embodiment
In the 4th switching tube Q4 be N-channel MOS pipe, the grid of the 4th switching tube Q4 is control terminal, and the drain electrode of the 4th switching tube Q4 is defeated
Enter end, the source electrode of the 4th switching tube Q4 is output end.
In one embodiment, filter circuit 210 includes the 9th resistance R9 and third capacitor C3, and filter circuit 210 is used for
Alternating component in filtering circuit.The connection of the clock pulse signal output end of 9th one end resistance R9 and power supply unit, the 9th electricity
The resistance R9 other end is respectively connected to the 5th zener diode D5 cathode and the one end third capacitor C3, another termination of third capacitor C3
Ground, the third capacitor C3 other end are additionally coupled to the public of the 5th zener diode D5 anode and the output end of the 4th switching tube Q4
End.Filter circuit 210 can reduce the alternating component in DC voltage as far as possible, retain its flip-flop, make output voltage line
Wave system number reduces.
In one embodiment, the working principle of signal deteching circuit 200 is：CP signal is by filter circuit 210 and the
To the gate input mouth of the 4th switching tube Q4 after five zener diode D5, if CP signal is high level, the 4th switching tube Q4
Conducting.If CP signal is low level, the 4th switching tube Q4 is closed.Processor 300 is sentenced according to the 4th switching tube Q4 drain signal
Disconnected CP signal condition, to export high level or low level control signal.
In one embodiment, signal control circuit 400 includes the 5th resistance R5, the 6th resistance R6, third switching tube Q3,
7th resistance R7 and the 8th resistance R8.
5th one end resistance R5 is connected to the clock pulse signal output end of power supply unit, the 5th another termination of resistance R5
Ground, the 6th one end resistance R6 are connected to the clock pulse signal output end of power supply unit, and the 6th resistance R6 other end is connected to
The input terminal of three switching tube Q3, the output end ground connection of third switching tube Q3, the control terminal of third switching tube Q3 are connected to the 7th electricity
The one end R7 is hindered, the 7th resistance R7 other end is respectively connected to the 8th one end resistance R8 and processor 300 (by the port S2-CON),
8th resistance R8 other end ground connection.Wherein, the 5th resistance R5 plays the role of partial pressure.
The concrete type of third switching tube Q3 is not unique, can be metal-oxide-semiconductor or triode.Further, the present embodiment
Middle third switching tube Q3 is N-channel MOS pipe, and the grid of third switching tube Q3 is control terminal, and the drain electrode of third switching tube Q3 is defeated
Enter end, the source electrode of third switching tube Q3 is output end.
In one embodiment, signal control circuit 400 further includes the 4th zener diode D4, the 4th zener diode D4
Cathode is connected to the clock pulse signal output end of power supply unit, the 4th zener diode D4 plus earth.4th pressure stabilizing, two pole
Pipe D4 plays the role of clamper protection.
In one embodiment, 400 circuit operation principle of signal control circuit is：When original state, signal control circuit
Received control signal is low level signal, and third switching tube Q3 is off-state, and the 6th resistance R6 does not access circuit, CP-OUT
Port exports CP signal and divides by the 4th zener diode D4 and the 5th resistance R5, wherein the 4th zener diode D4 plays clamper
Protective effect, CP signal is input to signal deteching circuit 200 after partial pressure.Processor 300 is exported according to the CP-IN signal detected
Signal S2-CON is controlled, signal control circuit 400 then continues to remain open third switching tube when S2-CON is low level signal
Q3, and conducting third switching tube Q3 is then controlled when S2-CON is high level signal makes the 6th resistance R6 be incorporated to circuit to change
CP signal amplitude.
In one embodiment, the power supply wake-up control circuit general operating principle of electric car is as follows：
On the one hand, its original state of CP signal of the port CP-OUT output is 12VDC signal, due to depositing for first capacitor C1
It is being equivalent to short circuit in energization moment first capacitor C1, thus CP signal provides a high level by first capacitor C1 and wakes up
Signal.This high level wake-up signal is by the second diode D2 rectification protection and by first resistor R1, second resistance R2 current limliting point
The grid of first switch tube Q1 is input to after pressure and the second capacitor C2 energy storage filtering.Since high level signal is input to first switch
The grid of pipe Q1, then first switch tube Q1 conducting is to drag down the grid voltage of second switch Q2 and lead second switch Q2
It is logical, therefore and realize CP signal and wake up the function of BMS.
On the other hand, CP signal carries out CP signal detection by signal deteching circuit 200, and testing result is by the port CP-IN
Processor 300 is inputed to judge CP-IN signal.Processor 300 is exported according to CP signal judging result by the port S2-CON
High level or low level control signal are to signal control circuit 400, to control the change of CP signal amplitude, then complete judgement
Whether charging connection equipment is fully connected and confirms the duty ratio of CP signal (PWM).
The present embodiment problem complex and costly for circuit in traditional technology, it is simpler electronic to provide a kind of structure
The power supply wake-up control circuit of automobile.On the one hand BMS is directly waken up according to CP signal, on the other hand can also completes the inspection of CP signal
Survey and control function reduce circuit cost of implementation to simplify circuit structure.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
Above-described embodiments merely represent several embodiments of the utility model, the description thereof is more specific and detailed,
But it cannot be understood as the limitations to utility model patent range.It should be pointed out that for the common skill of this field
For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to
The protection scope of the utility model.Therefore, the scope of protection shall be subject to the appended claims for the utility model patent.
Claims (10)
1. a kind of power supply wake-up control circuit of electric car, which is characterized in that including：Receive connecting electric automobile for Denso
It sets the clock pulse signal of transmission and wakes up the power supply wake-up circuit of battery management system, detect the clock pulse signal and is defeated
The signal deteching circuit of testing result and the processor of the reception testing result out；
The power supply wake-up circuit is connect with the clock pulse signal output end of the power supply unit, is also used to connect described electronic
The battery management system of automobile；
The signal deteching circuit is connect with the clock pulse signal output end of the power supply unit, is also connected with the processor.
2. the power supply wake-up control circuit of electric car according to claim 1, which is characterized in that further include signal control
Circuit, the signal control circuit and the processor with connect, be also used to connect the clock pulse signal of the power supply unit
Output end, the processor are used to output control signals to the signal control circuit, the signal according to the testing result
Control circuit is for receiving the control signal and the clock pulse signal according to the control Signal Regulation.
3. the power supply wake-up control circuit of electric car according to claim 2, which is characterized in that further include the one or two pole
Pipe, the first diode anode are connect with the clock pulse signal output end of the power supply unit, and the first diode is negative
Pole is connect with the power supply wake-up circuit, signal control circuit and signal deteching circuit respectively.
4. the power supply wake-up control circuit of electric car according to claim 1, which is characterized in that the power supply wakes up electricity
Road includes first capacitor, the second diode, first resistor, second resistance, first switch tube, 3rd resistor, second switch and
4th resistance；
Described first capacitor one end is connect with the clock pulse signal output end of the power supply unit, the first capacitor other end
Connect with second diode cathode, second diode cathode respectively with described first resistor one end and it is described second electricity
Hinder one end connection, the first resistor other end ground connection, the control terminal of the second resistance other end and the first switch tube
Connection, the output end ground connection of the first switch tube, the input terminal of the first switch tube are connected to described 3rd resistor one end,
The 3rd resistor other end is connected to the control terminal of the second switch, and the output end of the second switch is connected to institute
The power output end of battery management system is stated, the input terminal of the second switch is connected to the power supply of the battery management system
Input terminal；Described 4th resistance one end is connected to the common end of the 3rd resistor Yu the second switch, the 4th electricity
The resistance other end is connected to the common end of the second switch Yu the power input.
5. the power supply wake-up control circuit of electric car according to claim 4, which is characterized in that the power supply wakes up electricity
Road further includes the second capacitor, and second capacitor one end is connected to the common end of the second resistance Yu the first switch tube,
The second capacitor other end ground connection.
6. the power supply wake-up control circuit of electric car according to claim 4, which is characterized in that the power supply wakes up electricity
Road further includes third zener diode, and the third zener diode anode is connected to the 3rd resistor and the second switch
The common end of pipe, the third zener diode cathode are connected to the public of the second switch and the power input
End.
7. the power supply wake-up control circuit of electric car according to claim 2, which is characterized in that the signal control electricity
Road includes the 5th resistance, the 6th resistance, third switching tube, the 7th resistance and the 8th resistance；
Described 5th resistance one end is connected to the clock pulse signal output end of the power supply unit, the 5th resistance other end
Ground connection, described 6th resistance one end are connected to the clock pulse signal output end of the power supply unit, and the 6th resistance is another
End is connected to the input terminal of the third switching tube, the output end ground connection of the third switching tube, the control of the third switching tube
End processed is connected to described 7th resistance one end, and the 7th resistance other end is respectively connected to described 8th resistance one end and described
Processor, the 8th resistance other end ground connection.
8. the power supply wake-up control circuit of electric car according to claim 7, which is characterized in that the signal control electricity
Road further includes the 4th zener diode, and the 4th zener diode cathode is connected to the clock pulse signal of the power supply unit
Output end, the 4th zener diode plus earth.
9. the power supply wake-up control circuit of electric car according to claim 1, which is characterized in that the signal detection electricity
Road includes filter circuit, the 5th zener diode, the 4th switching tube and the tenth resistance；
Described filter circuit one end is connected to the clock pulse signal output end of the power supply unit, the filter circuit other end
It is separately connected the control terminal of the 5th zener diode cathode and the 4th switching tube, the 5th zener diode is just
Pole is connected to the output end of the 4th switching tube, and the input terminal of the 4th switching tube is respectively connected to the tenth resistance one
End and the processor, the tenth resistance other end are connected to analog power.
10. the power supply wake-up control circuit of electric car according to claim 9, which is characterized in that the filter circuit
Including the 9th resistance and third capacitor, the filter circuit is for the alternating component in filtering circuit；Described 9th resistance one end
It is connect with the clock pulse signal output end of the power supply unit, it is steady that the 9th resistance other end is respectively connected to the described 5th
Diode cathode and third capacitor one end are pressed, the third capacitor other end ground connection, the third capacitor other end is also
It is connected to the common end of the output end of the 5th zener diode anode and the 4th switching tube.
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| CN201820474548.3U CN208127362U (en) | 2018-04-04 | 2018-04-04 | The power supply wake-up control circuit of electric car |
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| CN201820474548.3U CN208127362U (en) | 2018-04-04 | 2018-04-04 | The power supply wake-up control circuit of electric car |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108288735A (en) * | 2018-04-04 | 2018-07-17 | 湖南金杯新能源发展有限公司 | The power supply wake-up control circuit of electric vehicle |
| CN109597394A (en) * | 2018-11-23 | 2019-04-09 | 北斗航天汽车（北京）有限公司 | Pure electric vehicle controller multichannel wake-up circuit |
| CN109774534A (en) * | 2019-03-08 | 2019-05-21 | 上海度普新能源科技有限公司 | A kind of charging wake-up circuit |
| CN110497821A (en) * | 2019-08-20 | 2019-11-26 | 江西恒动新能源有限公司 | A kind of charging wake-up system and its control method |
| CN110868303A (en) * | 2019-12-05 | 2020-03-06 | 杭州协能科技股份有限公司 | Isolated communication wake-up circuit and wake-up method |
| CN113859142A (en) * | 2021-09-18 | 2021-12-31 | 科大国创新能科技有限公司 | CP ignition awakening circuit |
| CN114253198A (en) * | 2022-02-28 | 2022-03-29 | 深圳市地木升能源科技有限公司 | Control circuit of EVCC control system of electric automobile |
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2018
- 2018-04-04 CN CN201820474548.3U patent/CN208127362U/en active Active
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108288735A (en) * | 2018-04-04 | 2018-07-17 | 湖南金杯新能源发展有限公司 | The power supply wake-up control circuit of electric vehicle |
| CN108288735B (en) * | 2018-04-04 | 2024-02-06 | 深圳市元创时代科技有限公司 | Power source wake-up control circuit of electric automobile |
| CN109597394A (en) * | 2018-11-23 | 2019-04-09 | 北斗航天汽车（北京）有限公司 | Pure electric vehicle controller multichannel wake-up circuit |
| CN109774534A (en) * | 2019-03-08 | 2019-05-21 | 上海度普新能源科技有限公司 | A kind of charging wake-up circuit |
| CN109774534B (en) * | 2019-03-08 | 2024-01-30 | 上海度普新能源科技有限公司 | Charging wake-up circuit |
| CN110497821A (en) * | 2019-08-20 | 2019-11-26 | 江西恒动新能源有限公司 | A kind of charging wake-up system and its control method |
| CN110868303A (en) * | 2019-12-05 | 2020-03-06 | 杭州协能科技股份有限公司 | Isolated communication wake-up circuit and wake-up method |
| CN113859142A (en) * | 2021-09-18 | 2021-12-31 | 科大国创新能科技有限公司 | CP ignition awakening circuit |
| CN114253198A (en) * | 2022-02-28 | 2022-03-29 | 深圳市地木升能源科技有限公司 | Control circuit of EVCC control system of electric automobile |
| CN114253198B (en) * | 2022-02-28 | 2022-09-02 | 深圳市地木升能源科技有限公司 | Control circuit of EVCC control system of electric automobile |
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