Contactor Drive Circuit
AssigneeHuawei Technologies Co., Ltd.
InventorsBoning Huang, Jing Yang, Peng Zhang
Life of this patent
Estimating the term…
Abstract
A contactor drive circuit includes a power supply, a processor, a line connection and control unit, a first drive end, and a second drive end; 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.
Claims21
A contactor drive circuit configured to drive a bistable contactor or a normally closed contactor, wherein the contactor drive circuit comprises:
- a power supply;
- a processor;
- a line connection and control unit;
- a first drive end;
- and
- a second drive end,
- wherein the first drive end and the second drive end are configured to drive the bistable contactor or the normally closed contactor,
- wherein the processor is electrically connected to the line connection and control unit,
- wherein, 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
- wherein, 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.
Dependencies are inferred from the claim text.