Csmc Technologies Fab2 Co., Ltd.

Renyue Ma

Guoding Dai

Xiaohui Ma

Yue Chen

Hui Han

A high-voltage heavy-current drive circuit applied in a power factor corrector, comprising a current mirroring circuit (), a level shift circuit (), a high-voltage pre-modulation circuit (), a dead time control circuit () and a heavy-current output stage (); the heavy-current output stage adopts a Darlington output stage structure to increase the maximum operating frequency of the drive circuit. The stabilized breakdown voltage characteristic of a voltage stabilizing diode is utilized to ensure the drive circuit operating within a safe voltage range. Adding dead time control into the level shift circuit not only prevents the momentary heavy-current from a power supply to the ground during the level conversion process, but also reduces the static power consumption of the drive circuit.

Growing community of inventors

Jiangsu, China

Renyue Ma