Electric power conversion systems – Current conversion – Including automatic or integral protection means
Patent
1988-07-22
1991-09-10
Stephan, Steven L.
Electric power conversion systems
Current conversion
Including automatic or integral protection means
363 16, 363 97, 323356, H02H 7122
Patent
active
050479113
ABSTRACT:
The invention relates to a device (20) for a unipolarly operated component (9) capable of storing energy. This device (20) can be applied, for example, in an asymmetrical half bridge circuit (1). It compensates the dc magnetic flux which originates due to the unipolar operation and, hence permits making relatively small in size the component (9) capable of storing energy. Using a current converter (25, 32) with suitable winding ratio as an automatic and load-dependent compensation device, moreover, permits very flexible adaptation to load changes. Such adaptation is, in particular, required when very high pulsating current occurs on the primary side with simultaneous secondary no-load operation.
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Orengo et al., "DC Flux Compensating Circuit for Reducing the Size of Transformers", IBM Technical Disclosure, 6/78, pp. 223-224.
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Hubertus Guido
Landwehr Horst
Sperzel Wolfgang
Sturmer Johann
Thomas Friedrich-Werner
Leybold Aktiengesellschaft
Peckman Kristine
Stephan Steven L.
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