Anti-flicker night light

Details Anti-flicker night light Anti-flicker night light

1994-08-24

1995-08-29

Pascal, Robert J.

Electric lamp and discharge devices: systems

With radiant energy sensitive control means

Radiant energy control of an electric discharge device in...

315159, 315155, 315151, 315149, H05B 3702

Patent

active

054463432

ABSTRACT:
A capacitive element is introduced in series with the gate of a switching element in an automatic turn on/off circuit which automatically provides artificial light depending on the ambient light incident on a photo sensitive element of the circuit wherein the capacitive element holds an offset voltage which aids in turning on the switching element and provides a hysteresis in the system which counteracts a flickering effect common to automatic turn on/off circuits controlling an artificial light which employ a photo sensitive device.

REFERENCES:
patent: 3450939 (1969-06-01), Misencik
patent: 3864600 (1975-02-01), Schneider
patent: 4021679 (1977-05-01), Bolle et al.
patent: 4207501 (1980-06-01), Smallegan
patent: 4546419 (1985-10-01), Johnson
patent: 4588926 (1986-05-01), Pezzolo
patent: 4937499 (1990-06-01), Hunte

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