Power control circuit arrangements

Details Power control circuit arrangements Power control circuit arrangements

1983-09-19

1986-06-24

Wong, Peter S.

Electricity: power supply or regulation systems

Output level responsive

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

323246, G05F 1455

Patent

active

045969477

ABSTRACT:
A power control circuit in which a direct current voltage (Vp) proportional to the a.c. power applied to a load (L) is derived from voltages (Vc and Vv) proportional to the a.c. current flowing in the load (L) and the a.c. voltage across the load, respectively, and compared with a voltage (Vnp) representing nominal power to the load to provide a d.c. signal (Vd) the amplitude of which is utilized in conjunction with a staircase or ramp generator (SG) to add or deduct cycles of the a.c. power to or from the load circuit according to a predetermined load power rating and in dependence upon variations in the a.c. supply voltage to the load and changes in resistance of the load.

REFERENCES:
patent: 3723854 (1973-03-01), Kita
patent: 4039897 (1977-08-01), Dragoset
patent: 4146830 (1979-03-01), Foster
patent: 4287468 (1981-09-01), Sherman
patent: 4356433 (1982-10-01), Linden
patent: 4426614 (1984-01-01), Nola

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