Phase control apparatus

Details Phase control apparatus Phase control apparatus

1976-12-13

1978-07-11

Heyman, John S.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307252P, 307252Q, 307252UA, 307282, H03K 515

Patent

active

041004353

ABSTRACT:
A phase control apparatus is disclosed wherein a pair of transistors are alternately switched by an A.C. signal source. Each of the transistors is connected in series with an auxiliary thyristor and a primary winding of a pulse transformer to a D.C. power supply. Each of the auxiliary thyristors is fired by a magnetic phase shifter having an A.C. winding connected between a positive terminal of the D.C. power supply and a gate of the auxiliary thyristor. Connected to secondary windings of the pair of pulse transformers are gate circuits of a pair of main thyristors to which an A.C. voltage which is substantially in synchronism with the A.C. signal source is applied.

REFERENCES:
patent: 3046414 (1962-07-01), Meissen
patent: 3175076 (1965-03-01), Fox et al.
patent: 3265955 (1966-08-01), Brown
patent: 3348129 (1967-10-01), Schonholzer
patent: 3443204 (1969-05-01), Baker

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