Multi-output LLCC-type parallel resonant converter

Abstract

A systematic design procedure and experimental results are presented for an LLCC-type parallel resonant converter (PRC-LLCC). A steady-state analysis of the PRC-LLCC that is based on the state variable transformation technique is briefly outlined. This technique makes use of the two-dimensional state-plane diagram. Based on the design technique, a 150 W, 125 kHz multioutput PRC-LLCC power supply has been built to verify the theoretical results. A comparison between this converter and previously designed 150 W LLC and LCC-type parallel resonant power supplies is presented.<>