The invention discloses a relay adhesion detection circuit and method and an electric vehicle charging method, and belongs to the technical field of electronic circuits. The detection circuit comprises a live wire connected with the L end of the charging gun and a zero wire connected with the N end of the charging gun; the live wire is connected in series with a relay K1; the zero line is connected in series with a relay K2; a first detection circuit is connected between the live wire and the zero wire, and the first detection circuit is provided with a detection point M; the live wire is connected with a second detection circuit, the output end of the second detection circuit is connected with an operational amplifier detection circuit, and the operational amplifier detection circuit is provided with a detection point R. By only controlling the opening and closing of the relay K1 and combining the first detection circuit and the second detection circuit, whether the relay K1 and the relay K2 are adhered or not can be efficiently detected.
本发明公开了一种继电器粘连检测电路、检测方法及电动车充电方法,属于电子电路技术领域。检测电路包括与充电枪L端连接的火线,与充电枪N端连接的零线;所述火线上串联有继电器K1;所述零线上串联有继电器K2;所述火线和零线之间连接有第一检测电路,所述第一检测电路设置有检测点M;所述火线上连接有第二检测电路,所述第二检测电路的输出端连接有运放检测电路,所述运放检测电路设置有检测点R。通过仅控制K1继电器的断开与闭合,并结合第一检测电路和第二检测电路,能够高效地检测出K1继电器和K2继电器是否发生粘连。
Relay adhesion detection circuit, detection method and electric vehicle charging method
一种继电器粘连检测电路、检测方法及电动车充电方法
2025-03-28
Patent
Electronic Resource
Chinese
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