Engineering and Computer Science Faculty Publications

Title

A 600 Watt Four Stage Phase-Shifted-Parallel DC-to-DC Converter

Document Type

Article

Publication Date

4-1987

Journal Title

IEEE Power Electronics Transactions

Volume

PE-2

Issue

2

First Page

101

Last Page

108

DOI

10.1109/TPEL.1987.4766344

Abstract

An unconventional switched mode power supply (SMPS) architecture, developed as four 150-W buck-boost or flyback-type switching stages operated in phase-shifted-parallel (PSP), is introduced. The flybacks are operated in the continuous mode with intersecting conduction on both input and output sides; they are switched in cyclic sequence with one-fourth of a switching period following turn-on of one stage before turn-on of the next stage. PSP operation provides substantial improvements in intermediate power level SMPS for spacecraft applications.