Patent ID: 6504317
Filing Date: 2003-01-07
Classification: H05B,Y02B

Abstract:
A ceiling lamp brightness control device having a control device, one end of the control device being connected to an AC current source, and another end thereof being connected to at least one ceiling lamp; the ceiling lamp brightness control device comprising:a zipper switch having a zipper which drives a shaft to rotate; the shaft being enclosed by a conductive ring; a periphery of the conductive ring being installed with a plurality of conductive pieces spaced with an equal space; and the conductive ring being able to contact a selected conductive piece; a power element for controlling the conduction of the AC current source so as to control a power to the ceiling lamp; and a control circuit connected to the zipper switch and the power element; the control circuit generating a specific clock waveform through the conduction by pulling the zipper switch, thereby, the power element being triggered to be conducted at a specific time.