Florida State University Research Foundation, Inc.

Zhehui Guo

Hui Li

The disclosure relates to devices, systems and methods implementing a charge pump gate driver (CPGD) that offers adjustable pump voltage, enabling online and active dv/dt and di/dt control for power devices, including the wide bandgap devices, such as SiC MOSFETs and GaN HEMTs. The disclosed CPGD allows a flexible pump voltage adjustment through the pre-charging interval control. Both the turn-on and turn-off switching speed (both dv/dt and di/dt) of power devices can be online regulated rapidly within each switching cycle, without interrupting the power converter operation. The disclosed CPGD has a simple structure and eliminates the extra power supplies to reduce circuit cost and footprint.

Growing community of inventors

Tallahassee, FL, United States of America

Zhehui Guo