NDLI: Reset Circuits With Energy Recovery for Solid-State Modulators

Content Provider	IEEE Xplore Digital Library
Author	Biela, J. Bortis, D. Kolar, J.W.
Copyright Year	1973
Abstract	In power modulators for pulses in the microsecond range, transformers are often used for generating high output voltages. With standard topologies, the transformer is usually only excited in a unipolar direction, i.e., the flux density B swings between zero and a value close to the saturation flux density. By applying a reset circuit, the flux density B in the transformer is set to a value close to the negative saturation flux density before the pulse, so that the flux density could swing between the negative and positive saturation values during the pulse. This allows one to halve the core area and reduce the core volume/weight as well as the losses. In this paper, the operating modes of three different reset circuit topologies (the standard and a new advanced passive as well as an active one) and the corresponding waveforms are explained. Furthermore, the three topologies are compared with respect to the losses/complexity based on a design for a solid-state modulator with 20-MW output power and 200-kV output voltage..
Sponsorship	IEEE Nuclear and Plasma Sciences Society
Starting Page	2626
Ending Page	2631
Page Count	6
File Size	806546
File Format	PDF
ISSN	00933813
Volume Number	36
Issue Number	5
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-10-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Solid state circuits Pulse power systems Pulse transformers Pulse modulation Transformer cores Pulse circuits Circuit topology Pulse generation Power generation Magnetic cores solid-state modulator Energy recovery premagnetization pulse transformer reset circuit
Content Type	Text
Resource Type	Article
Subject	Nuclear and High Energy Physics Condensed Matter Physics

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