Electric power conversion systems – Current conversion – Including d.c.-a.c.-d.c. converter
Patent
1998-06-17
2000-02-15
Berhane, Adolf Deneke
Electric power conversion systems
Current conversion
Including d.c.-a.c.-d.c. converter
363 97, H02M 3335
Patent
active
060260009
ABSTRACT:
A power supply and a method of supplying power to, for example, an optical network. In one embodiment, the power supply includes: (1) a transformer having a main power primary winding, an auxiliary power winding and a secondary winding, (2) a first controllable switch coupled to said main power primary winding that, in response to a first control signal, configures said main power primary winding to receive main DC power, (3) a second controllable switch coupled to said auxiliary power winding that, in response to a second control signal, configures said auxiliary power winding to receive auxiliary DC power and (4) an integrated controller, coupled to said secondary winding, that controls said first and second controllable switches in a current mode and as a function of a voltage of said secondary winding and a presence of said main DC power.
REFERENCES:
patent: 4189764 (1980-02-01), Synder
patent: 5341279 (1994-08-01), Yamada
patent: 5455757 (1995-10-01), Nguyen et al.
patent: 5742491 (1998-04-01), Bowman et al.
patent: 5764500 (1998-06-01), Matos
Buijs John C.
de Weerd Jan
Berhane Adolf Deneke
Lucent Technologies - Inc.
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