Three-phase SCR drive circuit using an opto-coupled pulse amplif

Details Three-phase SCR drive circuit using an opto-coupled pulse amplif Three-phase SCR drive circuit using an opto-coupled pulse amplif

1976-05-24

1977-09-13

Zazworsky, John

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307262, 307311, 323 21, 323 22SC, 323 34, H03K 1772, H03K 112

Patent

active

040485200

ABSTRACT:
A three-phase shift network includes a single transistor which controls phase shift by introducing a variable resistance into the network as determined by a D.C. control signal supplied to the transistor. The three-phase signals generated from the phase shift network undergo pulse shaping and are subsequently introduced into an opto-coupled pulse amplifier. The amplifier drives large SCR devices, connected as a load.

REFERENCES:
patent: 3524986 (1970-08-01), Harnden, Jr.

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