LanWay IPR Services
LED sensing light driving circuit
A LED sensing light driving circuit includes a rectifying filter circuit, a buck power-supplying circuit, a constant current driving circuit, a sensing signal generating circuit, and a hysteresis comparator circuit. The rectifying filter circuit has a DC output terminal supplies power to the sensing signal generating circuit and the hysteresis comparator circuit via the buck power-supplying circuit. The sensing signal generating circuit reduces a voltage at a first input terminal of the hysteresis comparator circuit in response to increase or decrease of surrounding luminance.
XIAMEN ECO LIGHTING CO. LTD.
H Y H H
H05B Y02B H05B H05B
inventional additional inventional inventional
Xiaobo Hemu Jie Wenchang Wei Zongjin
Chen Ye Zhang Huang Liu Liu