Electronic thermostat with switched power converter

Details Electronic thermostat with switched power converter Electronic thermostat with switched power converter

1985-10-25

1986-12-30

Wayner, William E.

Automatic temperature and humidity regulation

Hot-air furnace

236 46R, F23N 520

Patent

active

046323031

ABSTRACT:
An electronic thermostat utilizing a switched power supply which operates either from a voltage appearing across an open circuit at a heater or air conditioner activation circuit (de-energized state) or from a current flowing in the activation circuit upon short circuiting (energized state) of the activation circuit. The power supply provides an uninterrupted source of power to the electronic thermostat which controls the source of input power to the power supply in addition to the state of the activation circuit. The electronic circuit implements a piecewise linear, with hysteresis loop discontinuity, control function.

REFERENCES:
patent: 3891144 (1975-06-01), Sadler et al.
patent: 3974426 (1976-08-01), Gingras
patent: 4079366 (1978-03-01), Wong
patent: 4162036 (1979-07-01), Balduzzi et al.
patent: 4197992 (1980-04-01), Klebanoff
patent: 4206872 (1980-06-01), Levine
patent: 4235368 (1980-11-01), Neel
patent: 4267966 (1981-05-01), Neel et al.

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