Decorative lighting control with a waveform generator

Details Decorative lighting control with a waveform generator Decorative lighting control with a waveform generator

1978-11-24

1981-08-18

La Roche, Eugene R.

Electric lamp and discharge devices: systems

Plural load device systems

307265, 315210, 315226, 315297, 315323, 332 9R, H05B 3702, H03K 708

Patent

active

042849268

ABSTRACT:
Decorative lighting control is effected by a waveform generator which employs an up-down counter that is alternately stepped in up and down directions. Each time the counter reaches either the maximum or minimum count, it is loaded with a count value representing the width of a pulse to be generated and the direction of the count is changed. A source of the count value is provided by utilizing another up-down counter. The width modulated pulses which result are used to control lighting devices.

REFERENCES:
patent: 3968401 (1976-07-01), Bryant

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