Electric power control device in an automatic temperature adjust

Details Electric power control device in an automatic temperature adjust Electric power control device in an automatic temperature adjust

1986-02-24

1988-02-02

Paschall, M. H.

Electric heating

Heating devices

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

219483, 219508, 219494, 307 40, 323319, H05B 102

Patent

active

047230681

ABSTRACT:
An electric power control device is composed of plural resistor loads (1.sub.0 -1.sub.4) the heat-generating powers of which are different from one another, switch means (3.sub.0 -3.sub.4) connected in series to each of the resistor loads and adapted for the ON-OFF control of an ac power (2), and means (4.sub.0 -4.sub.4) for ON-OFF controlling the switch means so as to turn on or turn off the ac power and also for selectively controlling the individual resistor loads so as to adjust the heat-generating powers of all of the resistor loads in accordance with their corresponding desired heat-generating powers.

REFERENCES:
patent: 4348582 (1982-07-01), Budek
patent: 4404461 (1983-09-01), Sitek et al.
patent: 4511791 (1985-04-01), Desai et al.
patent: 4542283 (1985-09-01), Leverenz

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