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

Claim 0:
1. A dual-input circuit, wherein:
the dual-input circuit comprises a first input port, a second input port, an intelligent switching unit, an auxiliary power supply unit, and a key power supply unit;
the first input port receives a first input voltage, the second input port receives a second input voltage, and the auxiliary power supply unit is provided in parallel between the first input port and the second input port; and
the intelligent switching unit is connected to the first input port, the second input port, and the auxiliary power supply unit, to provide one of the first input voltage and the second input voltage to the key power supply unit,
the first input port comprises a first electromagnetic interference filter and a first detection circuit, the second input port comprises a second electromagnetic interference filter and a second detection circuit, and the intelligent switching unit comprises a contactor, a dual-input control circuit, a first contactor drive circuit, a second contactor drive circuit, a third electromagnetic interference filter, and a third detection circuit.