Thyristor control apparatus

Details Thyristor control apparatus Thyristor control apparatus

1976-03-04

1977-08-02

Zazworsky, John

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307252T, 307314, 363130, 323 22SC, 323 24, 323 34, 323 36, H03K 1768, H03K 1772

Patent

active

040398668

ABSTRACT:
A magnetic phase shifter utilizing the principle of magnetic amplifier is used as a phase shifter for applying a firing signal to a main thyristor. In order to amplify and sharpen the rise of the output pulse of the magnetic phase shifter, an auxiliary thyristor is fired by the output pulse of the magnetic phase shifter. The gate-cathode circuit of the main thyristor is connected to the auxiliary thyristor as a load thereof. Power for the auxiliary thyristor is obtained from an AC power supply which is in phase with the main thyristor through a transformer, while power for the magnetic phase shifter is introduced from an intermediate tap of the secondary winding of the transformer, thus making the magnetic phase shifter compact as well as low in cost.

REFERENCES:
patent: 3041472 (1962-06-01), Ingman
patent: 3333178 (1967-07-01), Van Allen et al.
patent: 3348129 (1967-10-01), Schonholzer
patent: 3546567 (1970-12-01), Shimp

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