Electric power conversion systems – Current conversion – Including d.c.-a.c.-d.c. converter
Patent
1991-05-31
1992-12-01
Voeltz, Emanuel T.
Electric power conversion systems
Current conversion
Including d.c.-a.c.-d.c. converter
363 21, 363 95, 323901, H02M 3335
Patent
active
051684357
ABSTRACT:
According to this invention, a converter includes a voltage transformer, a switching transistor, a resistor, a control transistor, and a control circuit. The voltage transformer has a primary winding, a secondary winding, and a control winding. The switching transistor is connected in series with the primary winding. The resistor is connected between the switching transistor and one terminal of an input power source. The control transistor has a base connected to a connection point between the resistor and the switching transistor and a collector connected to a control electrode of the switching transistor. The control circuit controls the control transistor on the basis of a control voltage extracted from the control winding.
REFERENCES:
patent: 4058758 (1977-11-01), Peterson
patent: 4208705 (1980-06-01), Hosoya
patent: 4295188 (1981-10-01), Brunssen
patent: 4498128 (1985-02-01), Peterson et al.
Kawano Toshiyuki
Kitajima Tokimune
Kobayashi Tadashi
Shinada Yohsuke
Sonoki Masahiro
NEC Corporation
Voeltz Emanuel T.
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