Title :
Compact, isolated and simple to implement gate driver using high frequency transformer
Author :
Van Nguyen ; Crebier, Jean-Christophe ; Jeannin, Pierre-Olivier
Author_Institution :
Grenoble Electr. Eng. Lab., INPG/UJF, Grenoble, France
Abstract :
This paper presents a simple, ultra-compact and isolated gate driver system used to drive power switches. Using two legs of a CMOS inverter, a high frequency transformer and two zener diodes connected with the gate of power switch, this driver provides an optimal gate driver waveform with a high gate voltage to switch on the transistor, and a negative bias gate voltage during OFF state. In the paper, the proposed gate driver will be theoretically analyzed; simulation and experimental results for the system implemented to drive a high side MOSFET will be also showed and discussed.
Keywords :
CMOS analogue integrated circuits; MOSFET; Zener diodes; driver circuits; high-frequency transformers; invertors; power semiconductor switches; CMOS inverter; Zener diodes; high-frequency transformer; high-side MOSFET; isolated gate driver system; negative bias gate voltage; optimal gate driver waveform; power switches; transistor; ultracompact gate driver system; CMOS integrated circuits; Driver circuits; Inverters; Logic gates; MOSFET circuits; Pulse transformers; Switches;
Conference_Titel :
Applied Power Electronics Conference and Exposition (APEC), 2011 Twenty-Sixth Annual IEEE
Conference_Location :
Fort Worth, TX
Print_ISBN :
978-1-4244-8084-5
DOI :
10.1109/APEC.2011.5744730
