Design of Low Power Lighting LED Driver with Multiplex Divided Constant Current Source

Fei Yu; Zhao Jie

doi:10.4028/www.scientific.net/AMM.380-384.3204

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 380-384Design of Low Power Lighting LED Driver with...

Design of Low Power Lighting LED Driver with Multiplex Divided Constant Current Source

Abstract:

Low power lighting LED has the advantages of low cost and good heat dissipation. But the current driver for this kind of LED does not have a good efficiency. In this paper a new kind of LED driver circuit was designed. By using current mirror and PWM technique, the circuit has good efficiency. By simulation with PSPICE, we can prove that the circuit has can divide current equally and has a good performance while the voltage source has some jitters.

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Periodical:

Applied Mechanics and Materials (Volumes 380-384)

Pages:

3204-3208

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.380-384.3204

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Online since:

August 2013

Authors:

Fei Yu, Zhao Jie

Keywords:

Circuit Design, Current Source, LED, Lighting

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