| 大功率LED灯具的单级PFC恒流驱动及模拟调光技术的研究 |
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| 引用本文： | 胡力元,闫斌,刘廷章. 大功率LED灯具的单级PFC恒流驱动及模拟调光技术的研究[J]. 电测与仪表, 2014, 51(13) |
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| 作者姓名： | 胡力元 闫斌 刘廷章 |
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| 作者单位： | 上海大学机电工程与自动化学院; |
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| 基金项目： | 国家科技部国家科技支撑计划课题(2011BAE34B01);上海市科委战略性新兴产业引导专项课题(12DZ1143800) |
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| 摘 要： | 针对驱动芯片不支持调光和适用于不同规格的LED灯,设计了一款单级PFC大功率LED驱动电源,并且对电路进行了改进,使其能够模拟调光。分析了电路恒压恒流的实现原理以及模拟调光电路的设计。整个驱动电源具有良好的恒流特性,高功率因数和高效率。实验结果表明该电源可以实现宽范围平滑连续的模拟调光功能,可以匹配不同规格的LED灯,并且其调光电路也具有一定的通用性。
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| 关 键 词： | 单级PFC 恒流 模拟调光 |
| 收稿时间： | 2013-11-12 |
| 修稿时间： | 2013-11-12 |
Research of Single-stage PFC Constant Current Driver of High Power LED Lamps and Analog Dimming Technology |
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| HU Li-yuan,YAN Bin and LIU Ting-zhang. Research of Single-stage PFC Constant Current Driver of High Power LED Lamps and Analog Dimming Technology[J]. Electrical Measurement & Instrumentation, 2014, 51(13) |
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| Authors: | HU Li-yuan YAN Bin LIU Ting-zhang |
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| Affiliation: | School of Mechatronics Engineering and Automation Shanghai University Shanghai 200072,School of Mechatronics Engineering and Automation Shanghai University Shanghai 200072,School of Mechatronics Engineering and Automation Shanghai University Shanghai 200072 |
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| Abstract: | To solve the problem that drive chip does not supporting dimming and to be used for different specifications of LEDs, the design of a single-stage PFC high power LED driver power supply is proposed, and the circuit is improved to support analog dimming. Then the design of the analog dimming circuit is introduced, and the realization principle of constant voltage and constant current is analyzed. The whole driver power supply has good constant current characteristic, high power factor and high efficiency. The experimental results show that the power supply can |
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| Keywords: | Single-stage PFC Constant current Analog Dimming |
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