펄스 파워 모듈레이터의 과도 구간 안정성 개선을 위한 게이트 구동 회로

초록

This study proposes a new gate driver for high-voltage semiconductor switches in solid-state pulsed power modulators. The driver uses a gate transformer with a single high-voltage cable loop on the primary side. It applies bipolar pulses to the gate circuit, delivering a synchronized signal and isolated power. The driver keeps the gate voltage negative during the turn-off period to ensure stable operation during high-voltage switching transients. It does not require a separate isolated power source to generate negative voltage. The study compares the proposed circuit with a conventional gate driver. A prototype modulator is built using the proposed design, and experiments with resistive load confirm its reliable performance.

키워드