Lanway IPR Services
Lighting apparatus
A lighting apparatus includes a first LED module, a second LED module, a third LED module, a constant current generator, a first switch, a third switch and a driver. The constant current generator is used for generating a constant current according to a major PWM signal. The first LED module and the third LED module are connected in parallel and share the constant current. The constant current is adjusted by changing a major duty ratio of the major PWM signal. The driver is used for generating the major PWM signal, a first PWM signal and a third PWM signal. The first color temperature profile, the second color temperature profile and the third color temperature profile have different spectrum distributions.
XIAMEN LEEDARSON LIGHTING CO., LTD
H H H F H
H05B H05B H05B F21Y H05B
inventional inventional inventional additional inventional
Wei Hemu
Liu Ye