Design of LED Driver Circuit with Dual Unequal Power and Constant Current Output
ZHOU Zirui
GE Peng
LI Yang
WANG Hong
Abstract：We propose to add red LED chips to the LED light source and reduce the amount of red phosphor used in the phosphor layer,the results show that the light source has the advantages of high color rendering index and high luminous efficacy.To achieve a different color temperature of white light LED,the current requirements of blue LED and red light LED are different,so we design a LED driver circuit with dual unequal power and constant current output,which can provides the different constant working current for the blue light LED and red LED of the LED light source.The results show that the LED driver circuit can satisfy the requirements of high color rendering index and high luminous efficacy.It can be widely used in commercial lighting occasions.
Keywords：white LEDred LEDhigh color rendering indexLED driverdual outputcircuitdesign
Publication Date：2017-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 102-105 )