Firing circuit for an electric valve

Details Firing circuit for an electric valve Firing circuit for an electric valve

1974-11-29

1976-06-01

Dixon, Harold A.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307252UA, H03K 1760

Patent

active

039612040

ABSTRACT:
The invention concerns a circuit arrangement for firing an electric valve, particularly a thyristor, with a pulse capacitor which can be charged from the a-c voltage at the anode-cathode path of the electric valve by means of an external resistor and can be discharged by means of a contactless switching device for firing the electric valve by way of its control path. To increase the firing performance, there is provided in parallel to the anode-cathode path of the electric valve a series circuit comprising an external resistor and the primary winding of a transformer the secondary winding of which is connected to the pulse capacitor by way of a rectifier.

REFERENCES:
patent: 2920240 (1960-01-01), Macklem
patent: 3098949 (1963-07-01), Goldberg
patent: 3381212 (1968-04-01), Peltola
patent: 3443204 (1969-05-01), Baker
patent: 3723769 (1973-03-01), Collins
patent: 3821634 (1974-06-01), Sabolic

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