Power supply arrangement for a control circuit

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364492, H02J 316

Patent

active

057372322

ABSTRACT:
In an appliance having a nominally required product load and control components for controlling functions not directly related to those of the nominally required product load, the control components operating at voltages which are relatively low in comparison with those utilized by the nominally required product load, a portion of the nominally required product load is connected in series with the control components to serve as a voltage step down circuit whose output corresponds to the relatively low voltages required by the control components. The control components may include those used to operate a refrigerator door ice and water dispenser, and may provide additional accessory functions such as a toggle operated childproof door lock and display or night lighting, while the portion of the nominally required product load carrying circuit used in the power supply may include a heater coil of the type conventionally provided in the area of the dispenser ice chute for preventing moisture condensation on the dispenser surfaces.

REFERENCES:
patent: 3248892 (1966-05-01), Sutton et al.
patent: 3512372 (1970-05-01), Kusuda et al.
patent: 3529431 (1970-09-01), Kusuda et al.
patent: 3548609 (1970-12-01), Kusuda et al.
patent: 3578754 (1971-05-01), Kusuda
patent: 5269154 (1993-12-01), Schmidt
patent: 5360962 (1994-11-01), Pettit

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