Voltage regulating system

Details Voltage regulating system Voltage regulating system

1978-06-19

1982-10-19

Dixon, Harold A.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307252B, H03K 1760

Patent

active

043552420

ABSTRACT:
A voltage regulating or control system employing a triac for controlling the power supplied to a load from an alternating current (a.c.) voltage source uses an oscillator as a phase controller to initiate a first switching pulse in each half-cycle of the voltage source. A feedback loop responsive to the first pulse in each half-cycle acts to increase the output frequency of the oscillator to thereby provide pulse train firing of the triac. An additional circuit acts to define a "window" which serves to establish a period within each half-cycle of the a.c. source during which the delivery of switching of pulses is prohibited.

REFERENCES:
patent: 3925688 (1975-12-01), Kalfus

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