부유 인덕턴스의 영향을 고려한 새로운 CLASS-D 직렬부하 공진형 인버터

A new Class-D voltage source series-loaded resonant inverter topology considering stray inductance influences

A new Class-D series-loaded resonant inverter topology which can minimize the influences of the stray inductances is presented. In the conventional Class-D inverters, the stray inductances not only result in the overvoltage which gives the switches voltage stresses, but also in the high frequency resonant currents during turn-off transients. The new Class-D inverter is superior to the conventional Class-D inverters with respect to minimization of the problems caused by the stray inductances and is more suitable for high power and high frequency inverter systems such as induction heating. The validity of the new Class-D inverter is verified by simulation and experimental results.