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Author Bortis, D. ♦ Biela, J. ♦ Kolar, J.W.
Sponsorship National Natural Science Foundation of China (NSFC) ♦ Region Centre ♦ Ville de Tours ♦ Conseil General D'Indre et Loire ♦ ABB ♦ IEEE ♦ Sandia National Laboratories ♦ TOSHIBA
Source IEEE Xplore Digital Library
Content type Text
Publisher Institute of Electrical and Electronics Engineers, Inc. (IEEE)
File Format PDF
Copyright Year ©1994
Language English
Subject Domain (in DDC) Natural sciences & mathematics ♦ Physics ♦ Electricity & electronics ♦ Technology ♦ Engineering & allied operations ♦ Applied physics
Subject Keyword Pulse transformers ♦ Pulse modulation ♦ Pulse circuits ♦ Transformer cores ♦ Pulse power systems ♦ Diodes ♦ Solid state circuits ♦ Pulse generation ♦ Equations ♦ Inductance ♦ Pulse Transformer, reset circuit, solid state modulator, energy recovery, premagnetization, symmetrical flux swing.
Abstract In pulse modulators applying pulse transformers reset circuits are used to achieve optimal utilization of the core material, which results in lower costs, downsized pulse transformer/system volume and therefore in an improved pulse behavior due to the smaller parasitics. Because of its simplicity the most common method to reset the core is a DC reset circuit, where a DC current is used to premagnetize the core. However, the DC reset circuit - even with an optimal design-leads to significant losses in the freewheeling path. By applying an active reset method the losses due to the passive reset circuit can be reduced significantly. So far, only the theoretical behavior of the active reset circuit has been examined. Therefore, the detailed design and measurement results are presented in this paper. Furthermore, a new control method for achieving symmetrical flux swings in the core is presented.
Description Author affiliation :: Power Electron. Syst. Lab., ETH Zurich, Zurich, Switzerland
ISSN 10709878
Education Level UG and PG
Learning Resource Type Article
Publisher Date 2009-08-01
Publisher Place U.S.A.
Rights Holder Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Volume Number 16
Issue Number 4
Size (in Bytes) 962.66 kB

Source: IEEE Xplore Digital Library