A High Power Density, Full-bridge Parallel Load Resonant ZVZCS DC-DC Converter

Mazzola, M., Gafford, J., & Molen, M. (2004). A High Power Density, Full-bridge Parallel Load Resonant ZVZCS DC-DC Converter. Collection of Technical Papers - 2nd International Energy Conversion Engineering Conference / Providence, RI, United states: American Institute of Aeronautics and Astronautics Inc.. 3, 1532-1540.

Abstract

A full-bridge parallel loaded resonant zero current/zero voltage switching converter is developed for DC-DC voltage transformation. The power supply was used to condition power sourced by a 28volt 400A Neihoff alternator installed in a HMMWV delivered to a 5-kilowatt mobile radar. This design focuses on achieving maximum power density at reasonable efficiency (i.e. > 80%) by operating at the highest resonant and switching frequencies possible. A resonant frequency of 392kHz was achieved while providing rated power. The high resonant frequency was facilitated by the development of an extremely low inductance layout (< 20nH) capable of conducting the high resonant currents associated with this converter topology. Copyright © 2004 by the American Institute of Aeronautics and Astronautics, Inc.