Byd Company Limited

Chengyu Lan

Qinyao Yang

Gang Chen

A driving circuit for an IGBT module is provided. The driving circuit includes: a gate driving resistor connected with the IGBT module; a driving module connected with the gate driving resistor; an integrating circuit connected with the driving module, in which the integrating circuit comprises an equivalent resistor and a first capacitor connected in series with the equivalent resistor, and a time constant of the integrating circuit is adjusted by changing a resistance of the equivalent resistor; a first optical coupler connected with the integrating circuit; and a micro control unit, connected with the first optical coupler. The disclosed driving circuit for an IGBT module can adjust an equivalent resistance of the gate driving resistor, thus driving the IGBT module working at different powers without replacing the gate driving resistor, and improving an operation state of the IGBT module.

Growing community of inventors

Shenzhen, China

Chengyu Lan