CN206358095U - A kind of Low-power-consumptiodormancy dormancy circuit of new-energy automobile electronics VCU modules - Google Patents
A kind of Low-power-consumptiodormancy dormancy circuit of new-energy automobile electronics VCU modules Download PDFInfo
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- CN206358095U CN206358095U CN201621197479.3U CN201621197479U CN206358095U CN 206358095 U CN206358095 U CN 206358095U CN 201621197479 U CN201621197479 U CN 201621197479U CN 206358095 U CN206358095 U CN 206358095U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/92—Energy efficient charging or discharging systems for batteries, ultracapacitors, supercapacitors or double-layer capacitors specially adapted for vehicles
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Abstract
The utility model provides a kind of Low-power-consumptiodormancy dormancy circuit of new-energy automobile electronics VCU modules, wherein main power source control circuit is connected with main power source, the main power source control circuit is used to control the power supply of the main power source to export, and the main power source is connected with interface circuit, processor, CAN transceiver and provides working power for it；Accessory power supply control circuit is connected with accessory power supply, the accessory power supply control circuit is used to control the power supply of the accessory power supply to export, accessory power supply is connected with processor, CAN transceiver and provides working power in resting state for it, and processor is connected with CAN transceiver, main power source control circuit, accessory power supply control circuit.The utility model uses low power dissipation design, by using accessory power supply and main power source cooperating, processor is operated in different patterns, has farthest saved the static energy consumption of new-energy automobile electronics VCU modules.
Description
Technical field
The utility model is related to new-energy automobile electronic technology field, particularly a kind of new-energy automobile electronics VCU moulds
The Low-power-consumptiodormancy dormancy circuit and dormancy method of block.
Background technology
With the development of auto industry, increasing electronic system is applied on automobile, completes different surveys
The functions, the increase of electronic control system, while also increasing the consumption of power supply such as amount, control and driving.New energy vehicle
In a period of time after stagnation of movement, all electronic control units (such as vehicle VCU, battery management system, high voltage control in system
Unit, electric machine controller etc.) still in working condition, its total current is up to hundreds of mA, it is necessary to not run and selected in automobile
Electronic equipment when not working, closing control module or enter low power consumpting state, it is to avoid cause battery to exhaust.In order to tackle constantly
The low-power consumption demand of growth, automotive electronics application processor is except improving the characteristic of device, using more advanced technique, in circuit
Optimized with system, also using a variety of low power dissipation designs, such as different mode of operation (normal mode, idle pulley, dormancy
Pattern), at the idling mode, the power consumption of processor is about a few mA, in the hibernation mode, and the work(milli of single-chip microcomputer is uA grades, greatly
The consumption for reducing power supply, when processor in a dormant state under, its power consumption can be ignored, but in whole Department of Electronics
In system, be ECU module for power supply power supply still in the various Peripheral Interfaces under working condition, being connected with processor, still deposit
In the consumption of power supply.Have in existing technical scheme using the method being controlled to power supply, directly power supply is entered by hardware
Row switch control, its weak point is that after power-off, after processor power down, the clock of the circuit such as CPU and timer is whole
Frozen, the data that only re-powers and can be just again introduced into working condition, processor ram after hardware reset are all lost
Lose, program will start anew to perform.
Utility model content
In order to solve the above technical problems, the utility model provides a kind of low-power consumption of new-energy automobile electronics VCU modules
Dormant circuit, it includes main power source control circuit, main power source, accessory power supply control circuit, accessory power supply, interface circuit, processing
Device, CAN transceiver composition；
Main power source control circuit is connected with main power source, and the main power source control circuit is used for the confession for controlling the main power source
Electricity output, the main power source is connected with interface circuit, processor, CAN transceiver and provides working power for it；
Accessory power supply control circuit is connected with accessory power supply, and the accessory power supply control circuit is used to control the auxiliary
The power supply output of power supply, accessory power supply is connected with processor, CAN transceiver and to provide work in resting state for it electric
Source, processor is connected with CAN transceiver, main power source control circuit, accessory power supply control circuit.
It is preferred that the main power source control circuit is connected and processor controlled with the processor, the processor
Produce a control signal and send to the main power source and control circuit, the main power source control circuit controls the main power source to enter
Enter working condition or resting state, when the main power source is in running order, exports a burning voltage and give interface electricity
Road, processor and CAN transceiver；
Accessory power supply control circuit is connected and processor controlled with the processor, and the processor produces a control
Signal processed sends to the main power source and controls circuit, and the main power source control circuit control accessory power supply enters working condition or stopped
Dormancy state, when accessory power supply works, the accessory power supply exports a burning voltage, to the processor and CAN transceiver
Dormancy working power is provided.
It is preferred that the processor is controlled with main power source, auxiliary power circuit is connected, when processor handles working condition
When, control main power source work provides working power to the interface circuit of system, CAN transceiver and processor itself, processor
Peripheral Equipment ＆ Interface circuit is communicated and realizes the normal work of circuit, and CAN transceiver is in normal operating conditions；
When processor does not receive CAN message or when needing to enter park mode, peripheral interface circuit is closed automatically, is protected
Stock pile stack, makes CAN transceiver enter park mode, while export a signal controls circuit to accessory power supply, connects auxiliary electricity
Source, when detect accessory power supply it is working properly after, processor export a signal give main power source control circuit, close main power source,
System turns to be powered by accessory power supply, processor configuration external interrupt, for waking up stop mode, configures related GPIO to accordingly
Level to ensure power saving, and related data is carried out to enter STOP patterns after backup preservation, ECU modules enter resting state.
It is preferred that the processor is in the dormant state, if having information activities in external interrupt triggering or CAN
When, dominant level can trigger CAN wake actions, and the CAN of active processor, which is received, to interrupt, and processor reenters normal work mould
Formula, its GPIO output level control signal connects main power source, closes accessory power supply, makes system rearming.
The utility model has the advantages that：
The Low-power-consumptiodormancy dormancy circuit for the new-energy automobile electronics VCU modules that the utility model is provided uses low power dissipation design,
By using accessory power supply and main power source cooperating, it is operated in by software-controlled processor under different mode of operations, from
Software controls the working frequency of hardware and the working time of hardware, reduces system activity in low-power consumption, during kernel from secondary
Clock is closed, and the module such as phaselocked loop, flash memory, analog-digital converter is closed, so as to reduce processor oneself power consumption.Meanwhile,
It is cut off the most of power supply of external interface chip, so as to reach possible minimum system power consumption, now processor can be outer
The pin in portion, reset or waken up using the periodic wakeup source of low power consuming clock.Or by CAN network, generation is called out
Wake up and interrupt, system is reentered work shape.Switched by the park mode of chip, make system in the state of not using difference
Mode of operation (park mode, mode of operation, low-power consumption mode), reduce system power dissipation, farthest saved new energy
The energy consumption of automotive electronics VCU modules.
Certainly, implement any product of the present utility model to it is not absolutely required to while reaching all the above advantage.
Brief description of the drawings
In order to illustrate more clearly of the technical scheme of the utility model embodiment, make required for being described below to embodiment
Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present utility model,
For those of ordinary skill in the art, on the premise of not paying creative work, it can also be obtained according to these accompanying drawings
Other accompanying drawings.
The Low-power-consumptiodormancy dormancy circuit block diagram for the new-energy automobile electronics VCU modules that Fig. 1 provides for the utility model；
The Low-power-consumptiodormancy dormancy circuit structure diagram for the new-energy automobile electronics VCU modules that Fig. 2 provides for the utility model；
The operating diagram of the Low-power-consumptiodormancy dormancy circuit processor that Fig. 3 is provided for the utility model in the operating condition；
The operating diagram of the Low-power-consumptiodormancy dormancy circuit processor that Fig. 4 is provided for the utility model in the dormant state.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The all other embodiment obtained, belongs to the scope of the utility model protection.
As shown in figure 1, the utility model embodiment provides a kind of Low-power-consumptiodormancy dormancy of new-energy automobile electronics VCU modules
Circuit, it include main power source control circuit, main power source, accessory power supply control circuit, accessory power supply, interface circuit, processor,
CAN transceiver is constituted；
Main power source control circuit is connected with main power source, and the main power source control circuit is used for the confession for controlling the main power source
Electricity output, the main power source is connected with interface circuit, processor, CAN transceiver and provides working power for it；
Accessory power supply control circuit is connected with accessory power supply, and the accessory power supply control circuit is used to control the auxiliary
The power supply output of power supply, accessory power supply is connected with processor, CAN transceiver and to provide work in resting state for it electric
Source, processor is connected with CAN transceiver, main power source control circuit, accessory power supply control circuit.
As shown in Figure 1 and Figure 2, the main power source control circuit is connected and processor controlled with the processor, described
Processor, which produces a control signal and sent to the main power source, controls circuit, and the main power source control circuit controls the master
Power supply enters working condition or resting state, when the main power source is in running order, exports a burning voltage to described
Interface circuit, processor and CAN transceiver；
Accessory power supply control circuit is connected and processor controlled with the processor, and the processor produces a control
Signal processed sends to the main power source and controls circuit, and the main power source control circuit control accessory power supply enters working condition or stopped
Dormancy state, when accessory power supply works, the accessory power supply exports a burning voltage, to the processor and CAN transceiver
Dormancy working power is provided.
The processor is in the dormant state, dominant during if having information activities in external interrupt triggering or CAN
Level can trigger CAN wake actions, and the CAN of active processor, which is received, to interrupt, and processor reenters normal mode of operation, its
GPIO output level control signals, connect main power source, close accessory power supply, make system rearming.
Dormant circuit is constituted as shown in Fig. 2 main power source constitutes a switching mode collection by U1, C1, V1, L1, R5, R6, C2, C3
Into voltage-stablizer, it is possible to provide a driving force reaches 3A, the power supply with good linear and load regulation characteristic, its output voltage
Realize that C1 is Cboost electric capacity in regulation output, figure by resistance R5, R6 partial pressure, V1 is rectifying tube, and L1 is energy storage inductor, to open
Close pipe work and guarantee is provided, and be filtered by electric capacity C2, C3, produce a burning voltage VCC0, provided for whole system
Required power supply during normal work.Main power source controls electricity routing resistance R1, R2, R3, R4 and triode Q1, Q2 and control signal
S1 is constituted, when S1 is low level, triode Q1 cut-offs, triode Q2 conductings, and switching regulator U1 ON/OFF pins are height
Level, switching regulator U1 starts working.Main power source output circuit is made up of diode V3 and V4, when main power source works, electricity
Pressure VCC0 is respectively that processor, CAN transceiver and interface circuit provide working power by diode V3, V4.
Accessory power supply is by triode Q4, Q5, resistance R10, C4, voltage-stabiliser tube V2, filter capacitor C5 compositions, when triode Q4 is led
When logical, power supply VBB is filtered by triode Q4, resistance R10 partial pressures, voltage-stabiliser tube V2 voltage stabilizings, triode Q5 base stage filter capacitors C4
Afterwards, a stable voltage VD2 is produced on voltage-stabiliser tube V2, the Ube poles that its output voltage VDD is equal to VD2 and triode Q5 are tied
Difference in voltage.Accessory power supply controls electricity routing resistance R7, R8, R9 and triode Q3 and control signal S2 compositions, when S2 is high electricity
Usually, triode Q3, Q4 is turned on, and a stable voltage VD2 is produced on voltage-stabiliser tube V2, and triode Q5 is turned on, and through electric capacity
One stable voltage VDD of C5 filtering outputs.Accessory power supply Working state checking circuit is made up of resistance R11, R12, electric capacity C6,
Whether devoted oneself to work state mainly for detection of auxiliary power circuit, after triode Q4 is turned on, one is produced on voltage-stabiliser tube V2
After individual voltage VD2, after the voltage is filtered by resistance R1, R12 partial pressure and through electric capacity C6, a sampled voltage is obtained, is sent to
Processor U2 ADC sampling channel AN0, are obtained by the sampled value to AN0 passages, can determine whether whether accessory power supply is in work
And output state.
In the course of the work, main power source work provides power supply, processor is received by CAN transceiver to ECU modules for system
CAN message in bus, and handled accordingly, when Full Vehicle System enters suspended state, the control node in bus is first
After be closed, ECU modules do not receive the CAN message in bus, and this enters processor and is prepared to enter into park mode, its handling process
As shown in figure 3, GPIO processing of the processor first to its outside, corresponding level is configured to by part end-apparatus, to reduce
Power consumption, as shown in Fig. 2 CAN transceiver dormancy control port STB is connected to the control port PA3 of processor, at normal mode
PA3 is configured to a low level by reason device.In such a mode, transceiver can by CAN circuits CANH and CANL transmission and
Receive data.Differential received signal in bus is converted into data signal through RXD and is output to processor.Into park mode
When, PA3 ports are configured to high level by processor, and now CAN transceiver U3 enters park mode, and electric current drops to microampere order.
Then, processor outputs it port PA1 (S2) and is set to high level, when PA1 (S2) is high level, passes through resistance
R7, R8 partial pressure, are sent to triode Q3 base stage, and triode Q3 conductings, Q3 current collection extremely low level, triode Q4 is turned on,
A stable voltage VD2, triode Q5 conductings are produced on voltage-stabiliser tube V2, and a stable electricity is exported through electric capacity C5 filtering
Press VDD.Accessory power supply Working state checking circuit is made up of resistance R11, R12, electric capacity C6, mainly for detection of accessory power supply electricity
Whether road devotes oneself to work state, after triode Q4 is turned on, after producing a voltage VD2 on voltage-stabiliser tube V2, the voltage quilt
Resistance R1, R12 partial pressure and through electric capacity C6 filter after, obtain a sampled voltage, be sent to processor U2 ADC sampling channels
Whether AN0, is obtained by the sampled value to AN0 passages, can determine whether accessory power supply in work and output state.
When processor detects AN0 passages with the presence of voltage and when reaching corresponding magnitude of voltage, show accessory power supply
Normal work is put into, processor closes its internal ADC, peripheral module by software, and configures after CAN wake-up interrupts, weight
New initialization CAN module, then sets a back-up registers and closes watchdog module, looked into for the state after system wake-up
Ask, the GPIO port PA0 (S1) of processor is finally set to high level, when PA0 (S1) is high level, triode Q1 conductings,
Triode Q2 ends, and switching regulator U1 ON/OFF pins are low level, and switching regulator U1 is stopped.Main power source VCC0
Output is closed.Now accessory power supply normal work, system power supply turns to be provided by accessory power supply VDD.In accessory power supply work
When, due to having concatenated a diode V3 between main power source and accessory power supply, it is therefore prevented that accessory power supply moves back to main power source electricity
Road provides working power for interface circuit.
Place's ECU modules in the dormant state, total current drops to microampere order, now, processor internal clocking and guards the gate
Dog module, ADC, peripheral module etc. handle halted state, and service data is maintained in ram cell, when system is entered again
When entering working condition, when having information activities in bus, data are transmitted and received to CAN signal by CAN circuits CANH and CANL.Will
Differential received signal in bus is converted into data signal and is output to processor through RXD.When RXD output ports have level pulse letter
During number output, CAN wake-up interrupts are triggered, the software of processor jumped in CAN wake-up interrupts processing routines, its handling process is such as
Shown in Fig. 4, when producing wake-up interrupts, system is initialized to CAN module again, and configures complete after corresponding reception is interrupted
Configure, and configured after external interrupt, modification back-up registers into interrupting, to outside GPIO processing, PA3 is configured to low
Level, makes CAN transceiver enter normal operating conditions.Later on ADC, peripheral module, and watchdog module, system turn
Enter normal operating conditions, output port PA2 (S1) is configured to low level by last processor, and PA1 (S2) is set to low level, works as S1
During for low level, triode Q1 cut-offs, triode Q2 conductings, switching regulator U1 ON/OFF pins are high level, and switch is steady
Depressor U1 starts working.Main power circuit output voltage VCC0, voltage VCC0 are respectively processor, CAN by diode V3, V4
Transceiver and interface circuit provide working power.Simultaneously when PA1 (S2) is low level, triode Q3 cut-offs, Q3 colelctor electrode
For high level, triode Q4 cut-offs, in voltage-stabiliser tube V2 no-voltages, triode Q5 cut-off accessory power supplys are closed.
The Low-power-consumptiodormancy dormancy circuit for the new-energy automobile electronics VCU modules that the utility model is provided uses low power dissipation design,
By using accessory power supply and main power source cooperating, make the mode of operation that processor is different, farthest save new energy
The energy consumption of source automotive electronics VCU modules.
The utility model preferred embodiment disclosed above is only intended to help and illustrates the utility model.Preferred embodiment is simultaneously
There is no the details that detailed descriptionthe is all, it is only described embodiment that the utility model is not limited yet.Obviously, according to this theory
The content of bright book, can make many modifications and variations.This specification is chosen and specifically describes these embodiments, is in order to preferably
Principle of the present utility model and practical application are explained, so that skilled artisan can be best understood by and utilize this
Utility model.The utility model is only limited by claims and its four corner and equivalent.
Claims (4)
1. a kind of Low-power-consumptiodormancy dormancy circuit of new-energy automobile electronics VCU modules, it is characterised in that control electricity including main power source
Road, main power source, accessory power supply control circuit, accessory power supply, interface circuit, processor, CAN transceiver composition；
Main power source control circuit is connected with main power source, and the main power source control circuit is used to control the power supply of the main power source defeated
Go out, the main power source is connected with interface circuit, processor, CAN transceiver and provides working power for it；
Accessory power supply control circuit is connected with accessory power supply, and the accessory power supply control circuit is used to control the accessory power supply
Power supply output, accessory power supply is connected with processor, CAN transceiver and provides working power in resting state for it,
Processor is connected with CAN transceiver, main power source control circuit, accessory power supply control circuit.
2. the Low-power-consumptiodormancy dormancy circuit of new-energy automobile electronics VCU modules according to claim 1, it is characterised in that institute
State main power source control circuit with the processor to be connected and processor controlled, the processor produces a control signal simultaneously
Send to the main power source and control circuit, the main power source control circuit controls the main power source to enter working condition or dormancy shape
State, when the main power source is in running order, exports a burning voltage to the interface circuit, processor and CAN transmitting-receivings
Device；
The accessory power supply control circuit is connected and processor controlled with the processor, and the processor produces a control
Signal processed sends to the main power source and controls circuit, and the main power source control circuit control accessory power supply enters working condition or stopped
Dormancy state, when accessory power supply works, the accessory power supply exports a burning voltage, to the processor and CAN transceiver
Dormancy working power is provided.
3. the Low-power-consumptiodormancy dormancy circuit of new-energy automobile electronics VCU modules according to claim 1, it is characterised in that institute
State processor with main power source control, auxiliary power circuit to be connected, when processor handles working condition, control main power source work
Make, working power, the Peripheral Equipment ＆ Interface circuit of processor are provided to the interface circuit of system, CAN transceiver and processor itself
The normal work of circuit is communicated and is realized, CAN transceiver is in normal operating conditions；
When processor does not receive CAN message or when needing to enter park mode, peripheral interface circuit is closed automatically, preserves heap
Stack, makes CAN transceiver enter park mode, while export a signal controls circuit to accessory power supply, connects accessory power supply, when
Detect accessory power supply it is working properly after, processor export a signal give main power source control circuit, close main power source, system turn
Powered by accessory power supply, processor configuration external interrupt, for waking up stop mode, configures related GPIO to corresponding level
To ensure power saving, and related data is carried out to enter STOP patterns after backup preservation, ECU modules enter resting state.
4. the Low-power-consumptiodormancy dormancy circuit of new-energy automobile electronics VCU modules according to claim 1, it is characterised in that institute
State processor in the dormant state, during if there are information activities in external interrupt triggering or CAN, dominant level can be triggered
CAN wake actions, the CAN of active processor, which is received, to interrupt, and processor reenters normal mode of operation, its GPIO output level
Control signal, connects main power source, closes accessory power supply, makes system rearming.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621197479.3U CN206358095U (en) | 2016-11-07 | 2016-11-07 | A kind of Low-power-consumptiodormancy dormancy circuit of new-energy automobile electronics VCU modules |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621197479.3U CN206358095U (en) | 2016-11-07 | 2016-11-07 | A kind of Low-power-consumptiodormancy dormancy circuit of new-energy automobile electronics VCU modules |
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| CN206358095U true CN206358095U (en) | 2017-07-28 |
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| CN201621197479.3U Expired - Fee Related CN206358095U (en) | 2016-11-07 | 2016-11-07 | A kind of Low-power-consumptiodormancy dormancy circuit of new-energy automobile electronics VCU modules |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106427835A (en) * | 2016-11-07 | 2017-02-22 | 合肥创宇新能源科技有限公司 | Low-power-consumption dormancy circuit of new energy automobile electronic VCU module |
| CN107589698A (en) * | 2017-09-20 | 2018-01-16 | 友达光电股份有限公司 | Sensing device further and control method |
| CN109612544A (en) * | 2018-11-30 | 2019-04-12 | 重庆前卫克罗姆表业有限责任公司 | A kind of gas meter, flow meter that can passively switch power supply |
| CN109950649A (en) * | 2019-04-19 | 2019-06-28 | 惠州市盛微电子有限公司 | Power source active circuit for battery management system |
| CN110509874A (en) * | 2019-09-30 | 2019-11-29 | 北京车和家信息技术有限公司 | Management method, direct current transducer and the power battery of electric car power consumption |
| CN111176187A (en) * | 2020-01-08 | 2020-05-19 | 合肥阳光电动力科技有限公司 | Power management system and protection method of motor controller |
| CN111509970A (en) * | 2020-04-23 | 2020-08-07 | 深圳英飞源技术有限公司 | Bidirectional converter |
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2016
- 2016-11-07 CN CN201621197479.3U patent/CN206358095U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106427835A (en) * | 2016-11-07 | 2017-02-22 | 合肥创宇新能源科技有限公司 | Low-power-consumption dormancy circuit of new energy automobile electronic VCU module |
| CN106427835B (en) * | 2016-11-07 | 2018-11-02 | 合肥创宇新能源科技有限公司 | A kind of Low-power-consumptiodormancy dormancy circuit of new-energy automobile electronics VCU modules |
| CN107589698A (en) * | 2017-09-20 | 2018-01-16 | 友达光电股份有限公司 | Sensing device further and control method |
| CN109612544A (en) * | 2018-11-30 | 2019-04-12 | 重庆前卫克罗姆表业有限责任公司 | A kind of gas meter, flow meter that can passively switch power supply |
| CN109612544B (en) * | 2018-11-30 | 2024-03-26 | 重庆前卫表业有限公司 | Gas meter capable of passively switching power supply |
| CN109950649A (en) * | 2019-04-19 | 2019-06-28 | 惠州市盛微电子有限公司 | Power source active circuit for battery management system |
| CN109950649B (en) * | 2019-04-19 | 2024-04-05 | 惠州市盛微电子有限公司 | Power activation circuit for battery management system |
| CN110509874A (en) * | 2019-09-30 | 2019-11-29 | 北京车和家信息技术有限公司 | Management method, direct current transducer and the power battery of electric car power consumption |
| CN111176187A (en) * | 2020-01-08 | 2020-05-19 | 合肥阳光电动力科技有限公司 | Power management system and protection method of motor controller |
| CN111176187B (en) * | 2020-01-08 | 2022-07-12 | 合肥阳光电动力科技有限公司 | Power management system and protection method of motor controller |
| CN111509970A (en) * | 2020-04-23 | 2020-08-07 | 深圳英飞源技术有限公司 | Bidirectional converter |
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