Control circuit for electrical appliances
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United States of America Patent
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-
Nov 1, 1983
Grant Date -
N/A
app pub date -
Dec 23, 1981
filing date -
Dec 23, 1981
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A circuit for controlling a ceiling-type fan includes a switch or relay for controlling the fan, connectable to the fan. A logic circuit produces an output signal for controlling the switch or relay from an input signal generated by momentarily interrupting the power applied to an input to the logic circuit. A diode and capacitor isolate the power supply connections of the circuit to maintain the supply voltage during the momentary power interruptions. In one embodiment the control circuit controls the on-and-off switching of the fan, as well as its speed, together with on-and-off switching of a light associated with the fan. In one embodiment the forward and reverse directions of the fan are controlled as well.
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