NDLI: Zero-voltage and zero-current-switching half bridge DC/DC converter

Content Provider	IEEE Xplore Digital Library
Author	Valchev, V. Yudov, D. Batchvarov, J. Van den Bossche, A. Melkebeek, J.
Copyright Year	2002
Description	Author affiliation: Dept. of Electron., Tech. Univ. of Varna, Bulgaria (Valchev, V.; Yudov, D.; Batchvarov, J.)
Abstract	This paper introduces an improved zero-voltage and zero-current-switching half bridge (ZV-ZCS HB) DC/DC converter for medium and high-power applications. The soft switching is obtained by adding only small capacitors. The operation principle and design procedure are presented together with an analysis of the total losses in the switch. By using the proposed operation principle and design procedure zero-voltage-zero-current switching and high efficiency operation for full load range are provided. The operation and design considerations are illustrated and verified on a 6 kW prototype, which has been simulated (PSPICE) and successfully tested at 20 kHz operating frequency. The obtained efficiency is above 97% for full load. Increasing the operating frequency above 50 kHz is possible, which contributes to a decrease of the losses in the transformer and to a reduction the size and weight. The simple topology, high efficiency and low cost make the proposed converter attractive for medium and high power applications.
Starting Page	2327
Ending Page	2334
File Size	552961
Page Count	8
File Format	PDF
ISBN	0780374207
ISSN	01972618
DOI	10.1109/IAS.2002.1042771
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2002-10-13
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Bridges Capacitors DC-DC power converters Switches Frequency SPICE Topology Virtual prototyping Zero current switching Testing
Content Type	Text
Resource Type	Article
Subject	Industrial and Manufacturing Engineering Control and Systems Engineering Electrical and Electronic Engineering

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