Solid state power control apparatus

Details Solid state power control apparatus Solid state power control apparatus

1974-05-29

1976-05-18

Schaefer, Robert K.

Electrical transmission or interconnection systems

Wave form or wave shape determinative or pulse-producing...

318599, 328 28, G05B 1128, H02K 300, H04B 1300

Patent

active

039581314

ABSTRACT:
A solid state power controller adapted for use with a single or multiple phase A.C. power source employs, for each phase, oppositely poled directional transistor switches connected in parallel with a load, and parallel oppositely poled directional transistor switches serially connecting the load and a line source phase.
Control circuitry is provided for rendering the serial transistor switches selectively operative in a chopping, pulse modulated mode which is variable to effect power control. The load shunting directional switches are alternately enabled responsive to the instantaneous line voltage polarity for transient suppression.

REFERENCES:
patent: 3315098 (1967-04-01), Eckl
patent: 3438023 (1969-04-01), Apitz
patent: 3509441 (1970-04-01), Welsh
patent: 3617840 (1971-11-01), Salihi
patent: 3671849 (1972-06-01), Kingston
patent: 3684919 (1972-08-01), Cramer
patent: 3705313 (1972-12-01), Ohsawa
patent: 3743911 (1973-07-01), Erler

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