Electric lamp and discharge devices: systems – Electric switch in the supply circuit
Patent
1999-05-12
2000-12-26
Vu, David
Electric lamp and discharge devices: systems
Electric switch in the supply circuit
315291, 315294, H05B 3702
Patent
active
061664979
ABSTRACT:
A system for electronically controlling a plurality of lighting lamps, comprising a power switch part installed on the same indoor or outdoor wirings of a different place from the lighting lamps, the power switch part supplying alternating current power to the system and performing a switching operation under the control of the user to generate a power control signal, and an electronic lighting lamp control part including a pulse signal generator for generating a pulse signal in response to the power control signal from the power switch part, a pulse signal separator for separating the pulse signal from the pulse signal generator to generate a lighting control signal sensible by the system, a controller for determining, in response to the lighting control signal from the pulse signal separator, whether the lamps are to be turned on or off and turning on or off the lamps in order or all of them at a time in accordance with the determined results, and a power supply circuit for supplying desired direct current power to the components in the system. According to the present invention, only one wall switch is manipulated without changing the existing wiring for the switch and the existing wiring for the lamps at a ceiling, to turn on or off the lamps in order.
REFERENCES:
patent: 4213063 (1980-07-01), Jones, Sr.
patent: 5264761 (1993-11-01), Johnson
patent: 5811940 (1998-09-01), Nutzel
Alemu Ephrem
Haga Electronics Co., Ltd.
Vu David
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