Electrical control having automatic mode selection

Details Electrical control having automatic mode selection Electrical control having automatic mode selection

1985-07-26

1987-03-17

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Photocell controlled circuit

250221, 340567, G08B 1318

Patent

active

046509860

ABSTRACT:
A mode control circuit is particularly useful in controlling the operation of an passive infrared appliance switch. When power is first applied to the control, a first output signal is emitted which places the switch in one mode of operation. If the power is then removed and reapplied within a short time, the control emits a second output signal placing the switch in a second mode of operation. However, if the power is removed for a long enough time, the control will emit the first signal when the power is reapplied.

REFERENCES:
patent: 702377 (1985-02-01), Maile
patent: 702418 (1985-02-01), Maile et al.
patent: 714510 (1985-03-01), Maile
patent: 3703718 (1972-11-01), Berman
patent: 3958118 (1976-05-01), Schwarz
patent: 4179691 (1979-12-01), Keller
patent: 4342987 (1982-08-01), Rossin
patent: 4344071 (1982-08-01), Allen
patent: 4346427 (1982-08-01), Blisset et al.
patent: 4364030 (1982-12-01), Rossin
patent: 4377808 (1983-03-01), Kao

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