A 600 Watt Four Stage Phase-Shifted-Parallel DC-to-DC Converter
IEEE Power Electronics Transactions
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.
Shortt, D. Jeffrey; Michael, Wayne T.; Avant, Roger L.; and Palma, R. E., "A 600 Watt Four Stage Phase-Shifted-Parallel DC-to-DC Converter" (1987). Engineering and Computer Science Faculty Publications. 27.