Electrical transmission or interconnection systems – Plural load circuit systems – Selectively connected or controlled load circuits
Patent
1981-11-05
1984-02-07
Goldberg, E. A.
Electrical transmission or interconnection systems
Plural load circuit systems
Selectively connected or controlled load circuits
307 39, 34082577, 318305, H02U 300
Patent
active
044305761
ABSTRACT:
A method and circuit for controlling the selection of remote electrical loads. An illustrated embodiment of the remote load selector circuit is depicted in conjunction with an electric ceiling fan and is utilized to select rotation direction, light operation and one of several motor speeds. A remote sending unit is utilized to couple a selected fraction of the line supply voltage to the control unit. The selected fractional line supply voltage is then rectified, filtered and applied to a plurality of individually biased sensing units. Each sensing unit is utilized to select a different load condition and the output of each sensing unit is also utilized to disable the preceding sensing unit so that only the sensing unit with the highest bias will generate an output. A relay, multivibrator or other switching means is coupled to the output of each sensing unit and is utilized to select a desired load condition.
REFERENCES:
patent: 4028620 (1977-06-01), Kitagana et al.
patent: 4138627 (1979-02-01), Canic
Deboer Todd E.
Goldberg E. A.
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