CN116632980A - Self-adaptive charging system and method for 12V and 24V auxiliary power supply - Google Patents
Self-adaptive charging system and method for 12V and 24V auxiliary power supply Download PDFInfo
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- CN116632980A CN116632980A CN202310728506.3A CN202310728506A CN116632980A CN 116632980 A CN116632980 A CN 116632980A CN 202310728506 A CN202310728506 A CN 202310728506A CN 116632980 A CN116632980 A CN 116632980A
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- voltage
- control unit
- power supply
- auxiliary power
- vehicle
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- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000001514 detection method Methods 0.000 claims abstract description 25
- 230000003044 adaptive effect Effects 0.000 claims description 16
- 238000004891 communication Methods 0.000 claims description 2
- 239000003990 capacitor Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/007—Regulation of charging or discharging current or voltage
- H02J7/00712—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/30—Constructional details of charging stations
- B60L53/31—Charging columns specially adapted for electric vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/60—Monitoring or controlling charging stations
- B60L53/62—Monitoring or controlling charging stations in response to charging parameters, e.g. current, voltage or electrical charge
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
-
- 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
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
-
- 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
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a self-adaptive charging system and a self-adaptive charging method for 12V and 24V auxiliary power supplies, wherein the self-adaptive charging system comprises the following steps: the control unit is used for automatically adaptively controlling the charging pile to output 12V or 24V voltage; the charged vehicle power switch is connected between the control unit and an automobile power supply of the charged vehicle; and the detection unit is used for transmitting a feedback signal to the control unit. The method comprises the following steps: when the charging pile charges outwards, a power switch of the charged vehicle is closed; transmitting a feedback signal to the control unit by using the detection unit; the control unit is automatically adapted to control the charging pile to output 12V or 24V voltage; the power switch of the charged vehicle is disconnected, the voltage of the positive input end is kept in the detection unit, and the charging pile keeps outputting 12V or 24V voltage. The invention can automatically adapt the voltage system consistent with the charged vehicle, and the system continuously provides matched voltage auxiliary power for the charged vehicle after a user turns off the power switch of the charged vehicle after charging begins.
Description
Technical Field
The invention relates to an adaptive charging system and method, in particular to an adaptive charging system and method for 12V and 24V auxiliary power supplies.
Background
According to auxiliary voltage difference, there are 2 types of direct current charging piles on the market: a 12V auxiliary power supply and a 24V auxiliary power supply, and most of the charging piles support only the 12V auxiliary power supply, and a small portion of both. The switching control method of the output power supply supported by both comprises the following steps:
the output auxiliary voltage 12V or 24V is manually controlled. Specific control modes such as a manual switch or interface selection control method, a hardware relay switching control method and the like are easy to cause misoperation or misjudgment of artificial factors, so that equipment is damaged, and serious economic loss is caused.
When the 12V output current is output, for example, whether the current passing through the auxiliary circuit is larger than a certain threshold value or not is judged, if the current passing through the auxiliary circuit is larger than the certain threshold value, the charged vehicle is considered to belong to a 12V voltage system, and if the current passing through the auxiliary circuit is smaller than the certain threshold value, the vehicle is judged to belong to a 24V voltage system, and then the vehicle is switched to the 24V voltage working system. The power demand of auxiliary activated power supply of the vehicle to be charged in the market is not uniform, which causes the circuit of the auxiliary voltage loop to be different, thus causing the error judgment of the current detection threshold value, and causing the situation that the output auxiliary voltage is inconsistent with the vehicle to be charged, and also causing economic loss.
At present, a voltage system which is consistent with the charged vehicle can be automatically adapted by detecting the voltage of the charged vehicle, so that the situations of artificial operation factors and misjudgment are avoided.
Disclosure of Invention
In order to solve the defects of the technology, the invention provides a self-adaptive charging system and a self-adaptive charging method for 12V and 24V auxiliary power supplies.
In order to solve the technical problems, the technical scheme adopted by the invention is an adaptive charging system of 12V and 24V auxiliary power supplies, comprising:
the control unit is used for automatically adaptively controlling the charging pile to output 12V or 24V auxiliary voltage according to the voltage value of the detected vehicle power supply;
the charged vehicle power switch is connected between the control unit and an automobile power supply of the charged vehicle;
and the detection unit detects the voltage value of the power supply of the charged vehicle when the power supply switch of the charged vehicle is closed and transmits a feedback signal to the control unit.
Further, the detection unit detects the voltage value of the charged vehicle power supply, and transmits a feedback signal to the control unit based on the comparison result of the positive input end and the negative input end of the operational amplifier, wherein the positive input end is connected with the charged vehicle power supply switch, and the negative input end is a constant value.
Further, a voltage holding loop for holding the voltage of the positive input end when the power switch of the charged vehicle is disconnected is connected to the positive input end of the operational amplifier in the detection unit.
Further, when the power supply of the charged vehicle is a 12V voltage system, the operational amplifier outputs a low level to the control unit when the value of the positive input terminal is smaller than the negative input terminal, and when the power supply of the charged vehicle is a 24V voltage system, the operational amplifier outputs a high level to the control unit when the value of the positive input terminal is larger than the negative input terminal.
Further, the control unit comprises a 12V auxiliary power supply output circuit and a 24V auxiliary power supply output circuit, and the common terminal of the 12V auxiliary power supply output circuit and the 24V auxiliary power supply output circuit is connected with the power switch of the charged vehicle.
Further, the control unit is used for automatically adaptively controlling the charging pile to output 12V or 24V output voltage according to the feedback signal of the detection unit, and the control unit is realized by controlling the on and off of a P-type MOS tube positioned on the 24V auxiliary power supply output circuit based on the switch of an NPN triode.
Further, the base electrode of the NPN type triode is connected with the output end of the operational amplifier, the collector stage of the NPN type triode is respectively connected to the source electrode of the P type MOS tube and the grid electrode of the P type MOS tube through resistors, the emitter stage of the NPN type triode is grounded, and the source electrode of the P type MOS tube and the drain electrode of the P type MOS tube are connected in series to the 24V auxiliary power supply output circuit.
Further, when the base electrode of the NPN type triode receives the low level of the operational amplifier, the NPN type triode is cut off, the voltage of the source electrode of the P type MOS tube is equal to the voltage of the grid electrode of the P type MOS tube, the P type MOS tube is turned off, and the control unit automatically and adaptively controls the charging pile to output 12V voltage.
Further, when the base electrode of the NPN type triode receives the high level of the operational amplifier, the NPN type triode is conducted, the voltage of the source electrode of the P type MOS tube is larger than the voltage of the grid electrode of the P type MOS tube, the P type MOS tube is conducted, and the control unit automatically and adaptively controls the charging pile to output 24V voltage.
An adaptive charging method of an adaptive charging system of 12V and 24V auxiliary power supplies comprises the following steps:
s1, switching on a 12V auxiliary power supply output circuit and a 24V auxiliary power supply output circuit of a control unit;
s2, closing the power switch communication control unit of the vehicle to be charged and the power switch of the vehicle to be charged;
s3, detecting the voltage value of the power supply of the charged vehicle by using the detection unit and transmitting a feedback signal to the control unit;
s4, the control unit automatically adaptively controls the charging pile to output 12V or 24V voltage;
and S5, the power switch of the charged vehicle is disconnected, a voltage maintaining loop connected with the positive input end of the operational amplifier in the detection unit maintains the voltage of the positive input end, and the charging pile maintains and outputs 12V or 24V voltage.
The invention discloses a self-adaptive charging system and a self-adaptive charging method for 12V and 24V auxiliary power supplies, in summary, the system outputs 12V voltage by default, a voltage system consistent with a charged vehicle can be automatically adapted by detecting the voltage of the charged vehicle, so that human operation factors are avoided, misjudgment is avoided, the modification of the existing charging pile is realized in an extremely low cost mode, the original control program or circuit is not required to be changed, and meanwhile, the detection unit is provided with a function of keeping the voltage of a positive input end when the power switch of the charged vehicle is disconnected, so that after the power switch of the charged vehicle is closed by a user after the charging is started, the system continues to charge the vehicle power supply.
Drawings
Fig. 1 is a schematic diagram of a system structure according to the present invention.
Fig. 2 is a schematic circuit diagram of the present invention.
FIG. 3 is a schematic flow chart of the method of the present invention.
Detailed Description
The invention will be described in further detail with reference to the drawings and the detailed description.
The self-adaptive charging system of the 12V and 24V auxiliary power supplies shown in fig. 1 comprises a control unit 1, a charged vehicle power supply switch 2 and a detection unit 3, wherein the control unit 1 is used for automatically adaptively controlling a charging pile to output 12V or 24V voltage according to the voltage value of the detected charged vehicle power supply, the detection unit 3 is used for detecting the voltage value of the charged vehicle power supply when the charged vehicle power supply switch 2 is closed and transmitting a feedback signal to the control unit 1, and the charged vehicle power supply switch 4 is used as a power key switch of the charged vehicle and is connected between the control unit 1 and an automobile power supply.
Specifically, the control unit 1 includes a 12V auxiliary power output circuit and a 24V auxiliary power output circuit, as in the circuit diagram shown in fig. 2, a relay JK1 and a diode D1 are connected in series in the 12V auxiliary power output circuit, a P-type MOS Q1 and a diode D2 are connected in series in the 24V auxiliary power output circuit, and due to unidirectional conduction of the diode D1 and the diode D2, only 12V or 24V can be output from the common terminal of the diode D1 and the diode D2, the common terminal of the diode D1 and the diode D2 is connected to the vehicle power switch SW1 through the vehicle power switch SW1, the vehicle power switch SW1 is connected to the vehicle power car_v+ of the vehicle, the control of the coils of the relay JK1 and the relay JK3 is controlled by the control circuit of the output on the charging control board, and the control of the coils of the relay JK3 are not described in detail in the prior art, when the vehicle power is required to be output auxiliary voltage, the control of the relay JK1 and the relay JK3 is closed, when the vehicle power switch SW1 is started, the vehicle power switch SW1 is closed, and the vehicle power switch D2 is closed, and most of the vehicle power switch D1 is closed through the vehicle power switch SW 1.
The detection unit 3 transmits a feedback signal to the control unit 1 based on a comparison result of a positive input end and a negative input end of the operational amplifier U1A, wherein the positive input end is connected to a common end of a voltage dividing circuit formed by a resistor R3 and a resistor R4, and the voltage value of the positive input end is r3×car_v+/(r3+r4); the negative input end of the operational amplifier U1A is connected to another voltage dividing circuit to be a constant value, and similarly, the voltage value of the negative input end is R8×12V+/(R8+R9); if the power supply of the charged vehicle is a 12V voltage system, the operational amplifier U1A outputs a low level to the control unit 1 when the positive input end value is smaller than the negative input end value through the selection of the resistor R3, the resistor R4, the resistor R8 and the resistor R9; if the power supply of the charged vehicle is a 24V voltage system, the operational amplifier outputs a high level to the control unit 1 when the positive input end value is ensured to be larger than the negative input end value through the selection of the resistor R3, the resistor R4, the resistor R8 and the resistor R9.
The control unit 1 automatically and adaptively controls the charging pile to output 12V or 24V output voltage according to the feedback signal of the detection unit 3, and the control is realized by controlling the on and off of a P-type MOS tube positioned on the 24V auxiliary power supply output circuit based on the switch of an NPN triode or the off.
Specifically, the base of the NPN type triode Q2 is connected to the output end of the operational amplifier U1A through the resistor R5, the collector of the NPN type triode Q2 is connected to the source of the P type MOS transistor Q1 through the resistor R1, the collector of the NPN type triode Q2 is connected to the gate of the P type MOS transistor Q1 through the resistor R2, the emitter of the NPN type triode Q2 is grounded, and the source of the P type MOS transistor Q1 and the drain of the P type MOS transistor Q1 are connected in series to the 24V auxiliary power supply output circuit. When the base electrode of the NPN type triode Q2 receives the low level of the operational amplifier U1A, the NPN type triode Q2 is cut off, the voltage of the source electrode of the P type MOS tube Q1 is equal to the voltage of the grid electrode of the P type MOS tube Q1, the P type MOS tube Q1 is turned off, and the control unit 1 automatically and adaptively controls the charging pile to output 12V voltage. When the base electrode of the NPN type triode Q2 receives the high level of the operational amplifier, the NPN type triode Q2 is conducted, the voltage of the source electrode of the P type MOS tube Q1 is larger than the voltage of the grid electrode of the P type MOS tube Q1 through the selection of the resistor R1 and the resistor R2, the P type MOS tube Q1 is conducted, and the control unit 1 automatically adaptively controls the charging pile to output 24V voltage.
The positive input end of the operational amplifier in the detection unit 3 is connected with a voltage holding loop which holds the voltage of the positive input end when the power switch of the charged vehicle is opened, the voltage holding loop comprises a loop consisting of a resistor R4, a capacitor C1 and a resistor R7, the resistor R4 is high in impedance, when the power switch SW1 of the charged vehicle is closed, the capacitor C1 is charged by the loop consisting of the resistor R4, the capacitor C1 and the resistor R7, when the power switch SW1 of the charged vehicle is opened, the impedance of the resistor R4 is large, the capacitor C1 discharges slowly, so that the positive input end of the operational amplifier U1A is not instantaneously reduced, the change of the state of the P-type MOS tube Q1 and the output of 24V voltage are not influenced, and the battery management system is powered by the BMS, and the uninterrupted power supply is realized under the condition that the power switch of the charged vehicle is opened.
The invention also discloses a self-adaptive charging method of the self-adaptive charging system of the 12V and 24V auxiliary power supplies, as shown in figure 3, wherein the self-adaptive charging method is that charging is started by clicking on a charging pile at the beginning, and JK1 and JK3 relays are closed to switch on a 12V auxiliary power supply output circuit and a 24V auxiliary power supply output circuit of a control unit; closing a power switch of the charged vehicle to communicate the control unit with the power of the charged vehicle; detecting whether a voltage system of a charged vehicle power supply is 12V or 24V by using a detection unit and transmitting a feedback signal to a control unit; and after 12V or 24V voltage is output, closing a power switch of the charged vehicle, and when the power switch of the charged vehicle is disconnected, the detection unit keeps the voltage of the positive input end, so that the charged vehicle continues to charge, finally judging whether the charging process is finished, and closing the JK1 and JK3 relays to finish charging.
In summary, the system of the invention outputs 12V voltage by default, and the voltage system consistent with the charged vehicle can be automatically adapted by detecting the voltage of the charged vehicle, so that the condition that human operation factors are avoided, misjudgment does not exist, the improvement of the existing charging pile is realized in an extremely low-cost mode, the original control program or circuit is not required to be changed, and meanwhile, the detection unit is provided with the function of keeping the voltage of the positive input end when the power switch of the charged vehicle is disconnected, so that the system continuously charges the vehicle power after the power switch of the charged vehicle is closed by a user after the charging starts.
The above embodiments are not intended to limit the present invention, and the present invention is not limited to the above examples, but is also intended to be limited to the following claims.
Claims (10)
1. An adaptive charging system for 12V and 24V auxiliary power supplies, comprising:
the control unit (1) is used for automatically adaptively controlling the charging pile to output 12V or 24V auxiliary voltage according to the voltage value of the detected power supply of the charged vehicle;
a charged vehicle power switch (2) connected between the control unit (1) and the vehicle power supply of the charged vehicle;
and the detection unit (3) detects the voltage value of the power supply of the charged vehicle when the power switch (2) of the charged vehicle is closed and transmits a feedback signal to the control unit (1).
2. The adaptive charging system for 12V and 24V auxiliary power supplies according to claim 1, wherein: the detection unit (3) detects the voltage value of the power supply of the charged vehicle, and transmits a feedback signal to the control unit (1) based on the comparison result of the positive input end and the negative input end of the operational amplifier, wherein the positive input end is connected with the power switch (2) of the charged vehicle, and the negative input end is a constant value.
3. The adaptive charging system for 12V and 24V auxiliary power supplies according to claim 2, wherein: the positive input end of the operational amplifier in the detection unit (3) is connected with a voltage maintaining loop which maintains the voltage of the positive input end when the power switch (2) of the charged vehicle is disconnected.
4. The adaptive charging system for 12V and 24V auxiliary power supplies according to claim 2, wherein: when the power supply of the vehicle to be charged is a 12V voltage system, the operational amplifier outputs a low level to the control unit (1) when the value of the positive input end is smaller than that of the negative input end, and when the power supply of the vehicle to be charged is a 24V voltage system, the operational amplifier outputs a high level to the control unit (1) when the value of the positive input end is larger than that of the negative input end.
5. The adaptive charging system for 12V and 24V auxiliary power supplies according to any one of claims 1-4, wherein: the control unit (1) comprises a 12V auxiliary power supply output circuit and a 24V auxiliary power supply output circuit, and the common end of the 12V auxiliary power supply output circuit and the 24V auxiliary power supply output circuit is connected with the power switch (2) of the charged vehicle.
6. The adaptive charging system for 12V and 24V auxiliary power supplies according to claim 5, wherein: the control unit (1) is used for automatically adaptively controlling the charging pile to output 12V or 24V output voltage according to the feedback signal of the detection unit (3) by controlling the on and off of a P-type MOS tube positioned on the 24V auxiliary power supply output circuit based on the switch of an NPN triode.
7. The adaptive charging system for 12V and 24V auxiliary power supplies according to claim 6, wherein: the base electrode of the NPN type triode is connected with the output end of the operational amplifier, the collector stage of the NPN type triode is connected to the source electrode of the P type MOS tube and the grid electrode of the P type MOS tube through resistors respectively, the emitter stage of the NPN type triode is grounded, and the source electrode of the P type MOS tube and the drain electrode of the P type MOS tube are connected in series to a 24V auxiliary power supply output circuit.
8. The adaptive charging system for 12V and 24V auxiliary power supplies according to claim 7, wherein: when the base electrode of the NPN type triode receives the low level of the operational amplifier, the NPN type triode is cut off, the voltage of the source electrode of the P type MOS tube is equal to the voltage of the grid electrode of the P type MOS tube, the P type MOS tube is cut off, and the control unit (1) automatically adaptively controls the charging pile to output 12V voltage.
9. The adaptive charging system for 12V and 24V auxiliary power supplies according to claim 7, wherein: when the base electrode of the NPN type triode receives the high level of the operational amplifier, the NPN type triode is conducted, the voltage of the source electrode of the P type MOS tube is larger than the voltage of the grid electrode of the P type MOS tube, the P type MOS tube is conducted, and the control unit (1) automatically and adaptively controls the charging pile to output 24V voltage.
10. An adaptive charging method of an adaptive charging system of 12V and 24V auxiliary power supplies is characterized by comprising the following steps:
s1, switching on a 12V auxiliary power supply output circuit and a 24V auxiliary power supply output circuit of a control unit;
s2, closing the power switch communication control unit of the vehicle to be charged and the power switch of the vehicle to be charged;
s3, detecting the voltage value of the power supply of the charged vehicle by using the detection unit and transmitting a feedback signal to the control unit;
s4, the control unit automatically adaptively controls the charging pile to output 12V or 24V voltage;
and S5, the power switch of the charged vehicle is disconnected, a voltage maintaining loop connected with the positive input end of the operational amplifier in the detection unit maintains the voltage of the positive input end, and the charging pile maintains and outputs 12V or 24V voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310728506.3A CN116632980A (en) | 2023-06-20 | 2023-06-20 | Self-adaptive charging system and method for 12V and 24V auxiliary power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310728506.3A CN116632980A (en) | 2023-06-20 | 2023-06-20 | Self-adaptive charging system and method for 12V and 24V auxiliary power supply |
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| Publication Number | Publication Date |
|---|---|
| CN116632980A true CN116632980A (en) | 2023-08-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310728506.3A Pending CN116632980A (en) | 2023-06-20 | 2023-06-20 | Self-adaptive charging system and method for 12V and 24V auxiliary power supply |
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| CN (1) | CN116632980A (en) |
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| CN114509601A (en) * | 2022-02-17 | 2022-05-17 | 国网四川省电力公司营销服务中心 | Demagnetization circuit and electronic current sensor |
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| KR20100005600U (en) * | 2008-11-24 | 2010-06-03 | 퍼펙트파워(주) | Power supply circuit for car |
| CN205725042U (en) * | 2016-05-05 | 2016-11-23 | 徐州曼特电子有限公司 | Electric automobile charging pile accessory power supply 12V, 24V compatibility charging circuit |
| WO2020103474A1 (en) * | 2018-11-21 | 2020-05-28 | 深圳市道通智能航空技术有限公司 | Charging circuit and charging system |
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| CN115241962A (en) * | 2022-07-12 | 2022-10-25 | 筑创科技(东莞)有限公司 | Emergency power supply for vehicle |
| CN115276171A (en) * | 2022-08-11 | 2022-11-01 | 如果新能源科技(江苏)股份有限公司 | Charging control device and off-grid power supply system |
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