Power control apparatus

Details Power control apparatus Power control apparatus

1989-01-19

1990-09-11

Stephan, Steven L.

Electricity: power supply or regulation systems

Output level responsive

Phase controlled switching using electronic tube or a three...

323902, G05F 1455

Patent

active

049565990

ABSTRACT:
A pair of static induction thyristors, which are coupled in parallel in the opposite bias directions between an AC power source and a load, is turned on by a light signal and is turned off by natural commutation, a light signal or an electric signal. The turn-off light signal is generated within a phase angle of 90.degree. in the time axis around the zero-cross point of the AC voltage from the AC power source.

REFERENCES:
patent: 4271387 (1981-06-01), Mukai et al.
patent: 4289948 (1981-09-01), Jurek et al.
patent: 4308494 (1981-12-01), Gelfand et al.
patent: 4709320 (1987-11-01), Konopka
patent: 4791545 (1988-12-01), Hinckley
Maruhashi et al., "AC Constant Voltage Regulator by Improved Partial Voltage Phase-Control Technique", Electrical Engineering in Japan, pp. 47-54, 7/75.

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