Single-ended DC-to-DC converter with lossless switching

Details Single-ended DC-to-DC converter with lossless switching Single-ended DC-to-DC converter with lossless switching

1985-12-27

1987-11-24

Beha, Jr., William H.

Electric power conversion systems

Current conversion

Including d.c.-a.c.-d.c. converter

363 97, H02M 3335

Patent

active

047093161

ABSTRACT:
The leakage inductance of the isolation transformer of a single-ended DC-to-DC converter resonates with a resonant capacitor connected in series with the transformer secondary to provide substantially zero current in the switching transistor during turn-on and turn-off. The overall transistor current stress is low since it is bounded by the sum of average input current and average output current. These factors allow the converter to be operated at high frequencies for improved performance.

REFERENCES:
patent: 3573598 (1971-04-01), Clarke
patent: 4318164 (1982-03-01), Onodera et al.
patent: 4383292 (1983-05-01), Onodera et al.
patent: 4401902 (1983-08-01), Onodera et al.
patent: 4415959 (1983-11-01), Vinciarelli
patent: 4441146 (1984-04-01), Vinciarelli
patent: 4443839 (1984-04-01), Onodera et al.
patent: 4559590 (1985-12-01), Davidson
patent: 4616300 (1986-10-01), Santelmann
Nazario et al, "Converter Regulation at the Primary", IBM Tech. Discl. Bul., vol. 27, No. 1A, pp. 109-114, Jun. 1984.

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