Patent ID: 11955839
Assignee: ANHUI DYNAMIC POWER CO., LTD
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 2:
3. The dual-input circuit according to claim 1, wherein: the first detection circuit detects whether the first input voltage works normally, and provides a first detection signal to the dual-input control circuit; the second detection circuit detects whether the second input voltage works normally, and provides a second detection signal to the dual-input control circuit; the third detection circuit detects whether the contactor outputs a voltage normally, and provides a third detection signal to the dual-input control circuit; and through determining based on the first detection signal, the second detection signal, and the third detection signal, the dual-input control circuit controls the contactor through the first contactor drive circuit and the second contactor drive circuit, to implement switching from one of the first input voltage and the second input voltage to the other or to remain in a current state.