白光LED驱动电路的设计与实现

Abstract

Abstract:

Through the analysis of the electrical characteristics of LED and its work characteristics,a high power efficiency PWM mode white LED driver circuit based on the HV9910B chip is designed,and the operating frequency of the circuit is determined through theoretical calculations and experimental measurements.Test results show that the driver circuit has a wide operating voltage range,constant current output,and a conversion efficiency of over 85%.

Key words: LED;constant-current driver;switching power supply

CLC Number:

TN432

Cite this article

JI Jia, DENG Zhou-Hu, HOU Ming-Yue, QI Wen-Tao. Design and Implementation of White-light LED Driving Circuit[J]., 2011, 24(9): 42-.

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URL: https://journal.xidian.edu.cn/dzkj/EN/

https://journal.xidian.edu.cn/dzkj/EN/Y2011/V24/I9/42

References

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［8］邱阳,季翼鹏,曹丰文.基于DALI总线的HV9910高亮度LED驱动电路的设计［J］.科技信息:学术版,2006(11):70-72.

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Design and Implementation of White-light LED Driving Circuit

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