Flickering candle lamp

Details Flickering candle lamp Flickering candle lamp

1990-09-14

1992-03-17

LaRoche, Eugene R.

Electric lamp and discharge devices: systems

Discharge device and/or rectifier in the supply circuit

Flashers

315208, 315307, 315209R, 315226, 362161, 362810, H05B 4136

Patent

active

050971808

ABSTRACT:
A self contained battery operated table lamp for use in restaurants, and the like. The lamp includes an electric light which is energized on an intermittent basis by a switching circuit to assure long battery life. A feed back loop is included in the switching circuit for establishing the duty cycle of the energizing power intermittingly applied to the lamp. A flicker signal generator is connected to the energizing circuit of the light to introduce a flicker into the output of the light. The flicker signal generator incorporates a plurality of independent oscillators, each operating at a slightly different frequency. The outputs of the various oscillators are summed in a summing network with each being given a slightly different weighting factor, and the resulting signal is injected into a feedback loop to modify the average voltage of the light. The lamp is caused to provide a pseudo-random candle simulating effect.

REFERENCES:
patent: 3710182 (1973-01-01), Van Reenen
patent: 4510556 (1985-04-01), Johnson
patent: 4593232 (1986-06-01), McEdwards

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