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Abstract
The resonant half bridge dual converter, which is suitable for the photovoltaic Module Integrated Converter (MIC), has been previously developed. The 100-Watt converter has achieved a reasonable efficiency under a 1 MHz switching frequency. However at these frequencies the power required to drive the mosfets becomes a major part of the total power loss of the resonant converter. The power dissipates as heat in the drive circuit and significantly reduces the efficiency of the converter. This paper studies a resonant transition mosfet gate drive circuit for the half bridge dual converter, which ideally has zero power loss. The operation of the resonant gate drive circuit is explained. Both of the simulation and experimental results are provided to verify the theoretical analysis.
Additional information
Notes on contributors
Quan Li
Quan Li received the BE degree in electrical engineering from Tsinghua University, Beijing, China in 1997. He completed the ME study at Central Queensland University (CQU), Rockhampton, Australia in 2002. Currently he is working toward the Ph.D. degree at CQU. His research interests include dc-dc conversion, high-frequency converters and magnetic designs.
Peter Wolfs
Associate Professor Peter J. Wolfs received his BE degree from the Capricornia Institute of Advanced Education in 1980 and his PhD from the University of Queensland in 1992. He currently is the Associate Dean (Research) of the James Goldston Faculty of Engineering and Physical Systems at Central Queensland University.
His interests include power electronics, high frequency power conversion, solar energy, remote power supply systems, grid interactive solar systems, solar vehicles, electric drives and intelligent systems applications in railway engineering.
Professor Wolfs is a Fellow of the Engineers Australia, a member of the Railway Technical Society of Australia and a Senior Member of IEEE.