NDLI: Resonant DC/DC converters with a transformer regulated synchronous rectifier

Content Provider	IEEE Xplore Digital Library
Author	Mikolajewski, M.
Copyright Year	1996
Description	Author affiliation: Inst. of Radioelectron., Warsaw Univ. of Technol., Poland (Mikolajewski, M.)
Abstract	A transformer regulated synchronous high-frequency rectifier is described, analysed and experimentally tested. The rectifier can be applied to high power resonant DC/DC power converters with Class D or Class E DC/AC inverters operating at a constant frequency. In the rectifier, a HF power transformer is utilised to separate the regulating and rectifying elements of the circuit. This approach allows reducing conduction losses in the regulating transistors and achieving good efficiency. Design examples and experimental results for 240 W/V/sub 0/=12 V Class D and 50 W/V/sub 0/=5 V Class E DC/DC power converters are also presented. The power converters operated at a constant frequency (approx. 1 MHz) in a wide range of loads (from no load to short circuit) and achieved good efficiency 89% and 82% at a full load, respectively. Possible modifications of the circuits are also discussed. DC/DC resonant power converters with the proposed rectifier are suitable for noise sensitive applications where a high constant frequency of operation and a high output current and/or voltage are required (e.g. telecommunications, aircraft and satellite equipment). The power converters can also be built as multiple output circuits with independent regulation of each output voltage.
Starting Page	713
Ending Page	718
File Size	620508
Page Count	6
File Format	PDF
ISBN	0780333349
DOI	10.1109/ISIE.1996.551030
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1996-06-17
Publisher Place	Poland
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Resonance DC-DC power converters Rectifiers Power transformers Frequency conversion Voltage Circuit testing Analog-digital conversion Inverters Hafnium
Content Type	Text
Resource Type	Article

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