Power controller circuit with automatic correction for phase lag

Details Power controller circuit with automatic correction for phase lag Power controller circuit with automatic correction for phase lag

1988-01-28

1990-03-20

Salce, Patrick R.

Electricity: power supply or regulation systems

Output level responsive

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

323235, 323319, 323326, G05F 1455

Patent

active

RE0331848

ABSTRACT:
What is proposed is an electronic circuit for controlling the amount of AC power delivered to an inductive or resistive load which continuously measures the actual phase lag between the load current and applied voltage and automatically adjusts the firing angle to provide the desired amount of AC power. The circuit includes an auxiliary on/off input with soft start and independently adjustable time delays for the on and off functions and also incorporates an input for remote power level control and features a half-wave rectified mode which delivers pulsating DC power to the load.

REFERENCES:
patent: 3818320 (1974-06-01), Schindler
patent: 4047097 (1977-09-01), Gyugi et al.
patent: 4072880 (1978-02-01), Oshima et al.
patent: 4223207 (1980-09-01), Chow
patent: 4308494 (1981-12-01), Gelfand et al.
patent: 4328459 (1982-05-01), McLeod, Jr.
patent: 4337430 (1982-06-01), Flego
patent: 4453123 (1984-06-01), Erkmann
patent: 4463269 (1984-07-01), Yashima
patent: 4490771 (1984-12-01), Huber et al.
patent: 4504778 (1985-03-01), Evans

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