ILLUMINATING AND DIMMING DEVICE ADJUSTING BRIGHTNESS BY CUTTING ELECTRIC POWER WAVEFORM

摘要

PROBLEM TO BE SOLVED: To provide an illuminating and dimming device capable of maintaining a high power factor.SOLUTION: An illuminating and dimming device includes a dimming module 10 having an encoding function and at least one light emitting module 20 which has a decoding function and is controlled by the dimming module 10. The dimming module 10 is specified by a user with necessary brightness and an address command. A triode AC switch of the dimming module 10 cuts electric power on the basis of the necessary brightness and the address command. The electric power having been cut is sent to the light emitting module 20 to control brightness of the light emitting module 20. The electric power having been cut has only a part of a period cut and the majority of the electric waveform maintained.