The invention discloses an auxiliary power supply circuit and a charging pile in the technical field of electric vehicles. The circuit comprises a control circuit, a high-voltage starting circuit and an LLC resonance circuit which are connected. AC voltage is connected to the power supply end of the control circuit, power supply voltage VCC is connected to the power supply ends of the high-voltage starting circuit and the LLC resonance circuit, the output end of the high-voltage starting circuit is connected with the control circuit and the LLC resonance circuit, and the AC voltage and the power supply voltage VCC are both used for providing working voltage; the output end of the control circuit is connected with the high-voltage starting circuit and the LLC resonance circuit. The technical problem that the stability and the safety of the auxiliary power supply are directly influenced by the temperature rise of the auxiliary power supply when the temperature is high in summer in the prior art can be relieved.
本发明公开了电动汽车技术领域的一种辅助电源电路及充电桩,电路包括:相连的控制电路、高压启动电路、LLC谐振电路;交流电压连接至所述控制电路的供电端,电源电压VCC连接至所述高压启动电路和LLC谐振电路的供电端,所述高压启动电路的输出端与所述控制电路和LLC谐振电路连接,所述交流电压和电源电压VCC均用于提供工作电压;所述控制电路的输出端与高压启动电路和LLC谐振电路连接。能够缓解现有技术中夏天温度高时辅助电源温升高,直接影响辅助电源稳定性和安全性的技术问题。
Auxiliary power supply circuit and charging pile
一种辅助电源电路及充电桩
2024-10-18
Patent
Electronic Resource
Chinese
IPC: | H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS , Anlagen zur Umformung von Wechselstrom in Wechselstrom, von Wechselstrom in Gleichstrom oder umgekehrt, oder von Gleichstrom in Gleichstrom und zur Verwendung in Netzen oder ähnlichen Stromversorgungssystemen / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung |
European Patent Office | 2021
|Charging pile BMS power supply control circuit, direct current charging pile and charging system
European Patent Office | 2023
|Automatic switching device for auxiliary power supply of charging pile
European Patent Office | 2022
|