Abstract: An automatic light regulating power supply device, connected between an AC power supply and a light-emitting-diode (LED) light string, to drive said LED light string to emit light, comprising: a sensing-and-setting unit, and a digital power control unit. Wherein, the sensing-and-setting unit is used to sense infrared signals, and generate a plurality of brightness selection signal. An AC/DC conversion circuit is provided in the digital power control unit, to convert the received AC power into DC power and output the DC power. The digital power control unit is connected to the sensing-and-setting unit, and regulates its power output based on infrared signals of the sensing-and-setting unit and the brightness selection signals, to vary illumination of the LED light string, in achieving energy conservation and lower power consumption.

Abstract: An intelligent power control system connects with a LED power adaptor and a LED light string and drives the LED light string to emit light. The intelligent power control system comprises a sensing-modulating-setting (SMS) unit and a digital power control unit. The SMS unit detects an infrared signal and generates a plurality of brightness-selection signals. The digital power control unit connects with the SMS unit and regulates the output power thereof according to the infrared signal and the brightness-selection signal of the SMS unit to modulate the brightness of the light emitted by the LED light string. The intelligent power control system can stepwise modulate the brightness of the LED light string to reduce power consumption without using any expensive sensor.

Abstract: An automatic light regulating power supply device, connected between an AC power supply and a light-emitting-diode (LED) light string, to drive said LED light string to emit light, comprising: a sensing-and-setting unit, and a digital power control unit. Wherein, the sensing-and-setting unit is used to sense infrared signals, and generate a plurality of brightness selection signal. An AC/DC conversion circuit is provided in the digital power control unit, to convert the received AC power into DC power and output the DC power. The digital power control unit is connected to the sensing-and-setting unit, and regulates its power output based on infrared signals of the sensing-and-setting unit and the brightness selection signals, to vary illumination of the LED light string, in achieving energy conservation and lower power consumption.

Abstract: An intelligent power control system connects with a LED power adaptor and a LED light string and drives the LED light string to emit light. The intelligent power control system comprises a sensing-modulating-setting (SMS) unit and a digital power control unit. The SMS unit detects an infrared signal and generates a plurality of brightness-selection signals. The digital power control unit connects with the SMS unit and regulates the output power thereof according to the infrared signal and the brightness-selection signal of the SMS unit to modulate the brightness of the light emitted by the LED light string. The intelligent power control system can stepwise modulate the brightness of the LED light string to reduce power consumption without using any expensive sensor.