Force commutation static frequency changer apparatus using direc

Details Force commutation static frequency changer apparatus using direc Force commutation static frequency changer apparatus using direc

1974-09-25

1976-11-02

Goldberg, Gerald

321 45C, 321 61, H02M 545

Patent

active

039899969

ABSTRACT:
An improved force commutated cycloconverter is provided by alternatively switching a capacitor to different groups of main thyristors including a thyristor to be commutated in the controlled sequence of thyristor conductions. The capacitor swing back to an opposite polarity before each successive commutation. Commutation is made possible at low load current by the adjunction of a resonant reset circuit. The force commutating circuit is applied to various configurations of cycloconverters.

REFERENCES:
patent: 3337788 (1967-08-01), Pelly
patent: 3431483 (1969-03-01), Lafuze
patent: 3470447 (1969-09-01), Gyugyi et al.
patent: 3493838 (1970-02-01), Gyugyi et al.
patent: 3742336 (1973-06-01), Bedford
patent: 3763418 (1973-10-01), Beck et al.
patent: 3842341 (1974-10-01), Goldberg

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