Electric power conversion systems – Current conversion – Including d.c.-a.c.-d.c. converter
Patent
1981-03-11
1982-10-26
Shoop, William M.
Electric power conversion systems
Current conversion
Including d.c.-a.c.-d.c. converter
363 97, 323267, 323283, H02M 3335
Patent
active
043565425
ABSTRACT:
A digital controller includes a digital feedback circuit for use in generating a pulse-width modulated control signal. The signal is derived from binary signals representing a standard pulse-width signal for the rated output of the power supply plus a correction pulse-width signal reflecting the change in the output level of the power supply. Logic circuits alter the correction pulse-width signals to provide a balancing correction. Soft start operation of the power supply together with a selection of operating clock frequencies are also provided.
REFERENCES:
patent: 3614587 (1971-10-01), Schwarz
patent: 3657631 (1972-04-01), Martens et al.
patent: 3970919 (1976-07-01), Butcher
patent: 4095165 (1978-06-01), Boros
patent: 4109194 (1978-08-01), Miller
patent: 4128771 (1978-12-01), Domenico
patent: 4166247 (1979-08-01), Miyazawa
Bruckner Ronald L.
Gheorghiu Paul
Hamilton Rodney V.
Khamare Ishwar S.
Voyer Joseph L.
Cavender J. T.
Hawk Jr. Wilbert
Lavin Richard W.
NCR Corporation
Shoop William M.
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