Electric power conversion systems – Current conversion – Including d.c.-a.c.-d.c. converter
Patent
1992-12-10
1994-05-03
Stephan, Steven L.
Electric power conversion systems
Current conversion
Including d.c.-a.c.-d.c. converter
363 18, 363 71, 363131, 331107R, H02M 3335
Patent
active
053093437
ABSTRACT:
The present invention is a driving circuit that comprises a magnetically permeable core, a high voltage secondary winding around the core with the secondary winding being connectable to a device to be powered, a circuit connectable to a D.C. power source and being magnetically coupled to the secondary winding to induce a voltage thereacross sufficient to power a device, a plurality cf connected windings wound around the core, a RC network and a plurality of parallel connected transistors coupled to the windings and the RC network with each respective transistor having a base terminal connected to the RC network by a respective current-variable resistive element, and a first primary winding connected in series with a plurality of second primary windings, and each primary winding connected in parallel with a respective capacitor.
REFERENCES:
patent: 4731721 (1988-03-01), Igashira et al.
patent: 4812960 (1989-03-01), Sakamoto et al.
patent: 5072159 (1991-12-01), Schlenk
patent: 5073849 (1991-12-01), Morris
Brown, Marty, Practical Switching Power Supply Design, 1990, Academic Press, Inc., pp. 186-189.
Han Y. Jessica
Stephan Steven L.
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