The invention discloses an automobile load power supply circuit and device, and relates to the technical field of power control, the automobile load power supply circuit comprises a first switch circuit, a second switch circuit and a third switch circuit, when an automobile ignition switch is closed, the first switch circuit is conducted, then the third switch circuit is conducted, and the second switch circuit is switched on; when the automobile ignition switch is switched off, the controller and/or the transceiver controls the first switching circuit to be switched on, and/or the controller controls the second switching circuit to be switched on, so that the third switching circuit is maintained to be switched on, and a control signal can be output through the automobile ignition switch or the control signal can be continuously output through the transceiver. When the controller is reset or breaks down, the self-locking function and power supply of the automobile load power supply circuit are still maintained, and the stable working state of the circuit is guaranteed.
本发明公开了一种汽车负载供电电路及装置,涉及电源控制技术领域,所述汽车负载供电电路包括第一开关电路、第二开关电路、第三开关电路,当汽车点火开关闭合时,所述第一开关电路导通,进而使所述第三开关电路导通,当汽车点火开关断开时,所述控制器和/或所述收发器控制所述第一开关电路导通,和/或所述控制器控制所述第二开关电路导通,以维持所述第三开关电路导通,可通过所述汽车点火开关输出控制信号或通过所述收发器持续输出控制信号,并在控制器复位或出现故障时,依然维持汽车负载供电电路的自锁功能和供电,保证了电路稳定的工作状态。
Automobile load power supply circuit and device
一种汽车负载供电电路及装置
2025-02-14
Patent
Electronic Resource
Chinese
IPC: | B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR |
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