Title :
Efficient Improvement of Driving Circuits for White Light LEDs
Author :
Lee, Chun-Yao ; Chen, Yun-Chih
Author_Institution :
Dept. of Electr. Eng., Chung Yuan Christian Univ., Taoyuan, Taiwan
fDate :
July 31 2012-Aug. 2 2012
Abstract :
This paper briefly reviews several circuits of white light LED driving structure, which includes the voltage regulator and current limiting resistance model, current regulator and current limiting resistance model, multiple current regulator model and inductance boost model. The paper also presents power loss analysis model to realize circuits performance. The analysis models can be used in the pre-driver circuits, which can increase pulse signal drive capability and eliminate the loss of power transistors.
Keywords :
current limiters; driver circuits; electric resistance; inductance; light emitting diodes; losses; power transistors; voltage regulators; circuits performance; current limiting resistance model; driving circuits improvement; inductance boost model; multiple current regulator model; power loss analysis model; power transistor loss; predriver circuits; pulse signal drive capability; voltage regulator; white light LED driving structure; Inductance; Integrated circuit modeling; Light emitting diodes; Limiting; Regulators; Resistance; Voltage control; White light LED; driving circuit;
Conference_Titel :
Digital Manufacturing and Automation (ICDMA), 2012 Third International Conference on
Conference_Location :
GuiLin
Print_ISBN :
978-1-4673-2217-1
DOI :
10.1109/ICDMA.2012.90
