| 摘要 |
PROBLEM TO BE SOLVED: To solve such a problem that the configuration of a lighting system is complicated because a PWM lighting control board is additionally provided in the lighting system for lighting control, an electric circuit board and mechanical means are required for eliminating noise sound generated from the PWM lighting control board.SOLUTION: A lighting system includes a light-emitting diode module 130 as a light source, a power supply unit 125 for supplying a dive voltage to the light-emitting diode module 130, a current control unit 105 for controlling the current flowing to the light-emitting diode module 130 by receiving various input signals, and a lighting control unit 100 performing the lighting control by controlling the light-emitting state of the light-emitting diode module 130. The lighting control unit 100 does not include an active element, and is constituted of passive elements.SELECTED DRAWING: Figure 1 |
