DESIGN AND IMPLEMENTATION OF FLYBACK CONVERTER WITH SYNCHRONOUS RECTIFICATION FOR SATELLITE ELECTRIC POWER SYSTEMS

Abstract

The flyback converter is one of the most attractive isolated converters in SMPS applications because of its simple configuration, less component count and cost effective. This present works describes the implementation of flyback converter based on self-synchronous rectification with a suitable choices of interface driver with secondary side, because of it features a low cost and high efficiency. The steady-state analysis and operating principle of the synchronous rectifier flyback converter is presented. The characteristics of 5V/10A prototype converter are implemented and verified experimentally with a 20 V to 45 V input. This presented design illustrates an example for a future space-grade isolated intermediary bus converter of commercial communication satellites