Electrical transmission or interconnection systems – Switching systems – Condition responsive
Patent
1984-01-25
1986-10-21
Pellinen, A. D.
Electrical transmission or interconnection systems
Switching systems
Condition responsive
361 92, G01R 1702
Patent
active
046187804
ABSTRACT:
An electronic apparatus including a circuit generating a control signal activating at least one heavy load includes a voltage comparision circuit for comparing a power source proportional voltage with a reference voltage and outputting a power-off signal when the level of the power source proportional voltage is smaller than that of the reference voltage, and a power-off detection circuit responsive to the power-off signal of the comparision circuit for detecting the level of the control signal associated with the at least one heavy load and detecting a power-off condition of the electronic apparatus.
REFERENCES:
patent: 3648145 (1972-03-01), Meyer et al.
patent: 4172980 (1979-10-01), Hsieh et al.
patent: 4203059 (1980-05-01), Kraus
patent: 4415943 (1983-11-01), Wortman
patent: 4429236 (1984-01-01), Nitschke
patent: 4439805 (1984-03-01), Tarleton
Dye, "Electronic Power Control Interface", IBM Technical Disclosure Bulletin, vol. 21, No. 5, Oct. 1978, pp. 2062, 2063.
Ikoma Keiichi
Katayama Syuji
Jennings Derek S.
Pellinen A. D.
Sharp Kabushiki Kaisha
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