Electric power conversion systems – Current conversion – Including d.c.-a.c.-d.c. converter
Patent
1999-01-14
2000-05-30
Berhane, Adolf Deneke
Electric power conversion systems
Current conversion
Including d.c.-a.c.-d.c. converter
363 24, 363134, H02M 3335
Patent
active
060697989
ABSTRACT:
An asymmetrical power converter and method of operation thereof. In one embodiment, the asymmetrical power converter includes (1) an isolation transformer having series-coupled first and second primary windings providing differing turns ratios therefrom, (2) a first power switch and a first input capacitor series-coupled to the first primary winding to form a first circulation path between the isolation transformer and an input of the asymmetrical power converter and (3) a second power switch and a second input capacitor series-coupled to the second primary winding to form a second circulation path between the isolation transformer and the input.
REFERENCES:
patent: 4685039 (1987-08-01), Inou et al.
patent: 5146394 (1992-09-01), Ishii et al.
patent: 5351175 (1994-09-01), Blankenship
patent: 5459650 (1995-10-01), Noro
patent: 5838552 (1998-11-01), Fraidlin et al.
patent: 5907479 (1999-05-01), Leu
U.S. Patent Application Serial No. 09/072,389, filed on May 4, 1998, entitled "Cross-Conduction Limiting Circuit, Method of Operation Thereof and DC/DC Converter Employing the Same" by Yehoshua Mandelcorn and Hengchun Mao.
Berhane Adolf Deneke
Lucent Technologies - Inc.
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