Power control apparatus

Details Power control apparatus Power control apparatus

1974-09-27

1977-09-06

Reynolds, Bruce A.

Electric heating

Heating devices

With power supply and voltage or current regulation or...

219501, H05B 102

Patent

active

040469913

ABSTRACT:
A power control apparatus uses a digital electronic counter to gate a triac for controlling the current supplied to a load. The preferred arrangement is that each of 10 possible counts achievable by the counter corresponds to a particular rate of current supply to the load. The counter may be caused to count up or count down by means of proximity switches mounted on a control panel and optionally includes a reset input. The control panel comprises an insulating glass plate having three pairs of electrodes thereon with the electrodes of each pair being mounted on opposite faces of the plate, each pair of electrodes being associated with a respective one of the count-up, count-down and reset inputs of the counter, the pair associated with the reset input being shaped to surround in the respective plane of the plate the other two electrodes on that surface of the plate.

REFERENCES:
patent: 3315063 (1967-04-01), Ihlenfeldt
patent: 3371191 (1968-02-01), Seney
patent: 3523182 (1970-08-01), Phillips et al.
patent: 3764783 (1973-10-01), Terry et al.
patent: 3930144 (1975-12-01), Tanaka

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