| 摘要 |
The present invention provides a contactor drive circuit, which is configured to drive a bistable contactor or a normally closed contactor. The contactor drive circuit includes a power supply, a processor, a line connection and control unit, a first drive end, and a second drive end, where the first drive end and the second drive end are configured to drive a bistable contactor or a normally closed contactor, and the processor is electrically connected to the line connection and control unit; when a contactor is connected between the first drive end and the second drive end, the processor determines, according to a value of a current flowing through the contactor, a type of the contactor connected between the first drive end and the second drive end; and according to a result of the determining, the processor controls the line connection and control unit to enable the first drive end to be electrically connected to an anode of the power supply, and controls the second drive end to be electrically connected to a cathode of the power supply; or the processor controls the line connection and control unit to enable the second drive end to be connected to the anode of the power supply, and controls the first drive end to be electrically connected to the cathode of the power supply. In the present invention, two types of contactors can be driven. |
