전압 배가기를 적용한 위상천이 제어 3-레벨 LLC 컨버터

Abstract

The conventional 3-Level LLC Converter using frequency-control has a disadvantage of designing magnetic components. To overcome this problem, a new constant frequency phase-shift controlled three-level LLC converter is proposed. Moreover, by employing voltage doubler type rectifier, an additional resonant capacitor is not needed. Therefore, this converter is promising for the high-power, high-voltage application with simple structure.