H - Electricity – 02 – H
Patent
H - Electricity
02
H
H02H 3/08 (2006.01) H02M 7/519 (2006.01)
Patent
CA 2100823
ABSTRACT OF THE DISCLOSURE In a two-point or three-point inverter, the feedback means, which are disposed in parallel with a feedback capacitor (CR) essentially comprise a semiconductor valve (SR) and a transformer (TR). As a result of switching the semiconductor valve (SR) once, the energy of the protective-circuit reactances, which have been stored in the feedback capacitor, is fed back into the link-circuit voltage source by means of the transformer. The arrangement according to the invention is distinguished by a high efficiency, accompanied at the same time by high turn-on/turn-off frequency of the semiconductor switch.
Asea Brown Boveri Ltd.
Swabey Ogilvy Renault
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