Phase-Shift Driven Class D Series Resonant Inverter With Two Anti Parallel-Connected Auxiliary Switches

摘要

This paper presents analysis of a novel voltage source class D inverter. The classic topology has been extended of the two auxiliary switches, that are anti parallel connected and each of them has its own resonant inductor. Proposed solution enables phase-shift control of the inverter, keeping zero-current-switching for auxiliary transistors. This paper explains the operation principle that is illustrated by simulation, presents general equations, design and shows experimental results.