Title :
A 600-W Four-Stage Phase-Shifted-Parallel DC-to-DC Converter
Author :
Shortt, D.Jeff ; Michael, Wayne T. ; Avant, Roger L. ; Palma, R.E.
Author_Institution :
U.S. Naval Research Laboratory, Code 7711, 4555 Overlook Avenue, Washington, DC, USA.
fDate :
4/1/1987 12:00:00 AM
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.
Keywords :
Capacitors; DC-DC power converters; Filters; Frequency conversion; Packaging; Paramagnetic resonance; Payloads; Space vehicles; Switched-mode power supply; Switching circuits;
Journal_Title :
Power Electronics, IEEE Transactions on
DOI :
10.1109/TPEL.1987.4766344
