Effect of FET output capacitance on ZVS of resonant converters

The analysis of resonant converters including the capacitance of the switches is presented. New dc characteristics are obtained for the series, parallel, and series-parallel resonant converters (SPRC). The operating regions where the converters operate with zero-voltage switching (ZVS) are determine...

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Bibliographic Details
Published in:IEEE transactions on aerospace and electronic systems 1996-01, Vol.32 (1), p.255-266
Main Authors: Sabate, J.A., Farrington, R.W., Jovanovic, M.M., Lee, E.C.
Format: Article
Language:English
Subjects:
Applied sciences
Capacitance
Electronic equipment and fabrication. Passive components, printed wiring boards, connectics
Electronics
Exact sciences and technology
FETs
Frequency conversion
MOSFET circuits
Power electronics
Resonance
Switches
Switching converters
Switching frequency
Zero voltage switching
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Description
Summary:The analysis of resonant converters including the capacitance of the switches is presented. New dc characteristics are obtained for the series, parallel, and series-parallel resonant converters (SPRC). The operating regions where the converters operate with zero-voltage switching (ZVS) are determined as a function of the switch capacitance. The more pronounced effect can be seen in the series resonant converter (SRC), while the parallel resonant converter (PRC) is the most insensitive. The results of the analysis have been verified on an experimental prototype.
ISSN:0018-9251
1557-9603
DOI:10.1109/7.481267