| 摘要 |
The present invention relates to an LED emotional lighting apparatus capable of converting various color temperatures and selecting an optimized color temperature that a user requires, by controlling two types of LED lighting apparatuses having different color temperatures by one converter. The LED emotional lighting apparatus includes: an AC-DC converter (100) for receiving commercial power to filter out unnecessary noise included in the commercial power, eliminating ripples after rectifying the power, switching to perform voltage transformation on the power, transforming the power into DC power again to output the power, and adjusting a power factor and an output by receiving the outputted DC power as feedback; a first light emitting LED module (500) and a second light emitting LED module (600) which are modularized over color temperatures; a first dimming control unit (300) and a second dimming control unit (400) which supply the power supplied from the AC-DC converter to the first light emitting LED module (500) and the second light emitting LED module (600), respectively, while continuously varying the power; and a control unit (200) operated by an operation algorithm which is programmed beforehand, for outputting two pulse width modulation (PWM) signals different in the duty ratio to the first dimming control unit (300) and the second dimming control unit (400), respectively. The first dimming control unit (300) and the second dimming control unit (400) are supplied from one AC-DC converter (100) with the power. Accordingly, an emotional lighting desired by the user is implemented. |
