벅+하프 브리지 컨버터에서 벅 컨버터의 출력 인덕턴스 값과 스위칭 주파수,변압기 코어 형태에 따른 효율 특성

We considered of the efficiency for the Buck+Half bridge converter Tins converter has advantages of applications for a low output voltage, a high output current and a wide input voltage Developed the Buck converter ratings and the Half Bridge converter ratings are 36-72V input and 22V/5A output, 19-24V input and 3.3V/30A output, respectively, Buck converter is operated with zero voltage switching process to reduce the switching losses The 80 1 -97 6% of the efficiency is measured at 184μH output filter inductance of Buck converter. In Half Bridge converter, the 86-96 4% of the efficiency is measured at 100kHz switching frequency with PQI core