| 家用可调光LED照明电源设计 |
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| 引用本文： | 陈智勇,马钧华. 家用可调光LED照明电源设计[J]. 轻工机械, 2011, 0(5): 75-78 |
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| 作者姓名： | 陈智勇 马钧华 |
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| 作者单位： | 浙江大学电气工程学院; |
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| 摘 要： | 介绍了一种用于市电环境下的可调光LED灯具电源的设计方法.220 V 50 Hz的交流电经过双向可控硅切相调压后送入电源,电源内部进行整流并通过BUCK降压处理输出到LED负载.电源设计以恩智浦半导体(NXP Semiconductors)SSL2101芯片为核心,通过采集输入电压中的切相信号分量感知调光指令,改变PW...
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| 关 键 词： | 电子电源 LED电源 脉宽调制 可调光 |
Design of Dimmable LED Power Supply Used in Household Lighting |
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| CHEN Zhi-yong,MA Jun-hua. Design of Dimmable LED Power Supply Used in Household Lighting[J]. Light Industry Machinery, 2011, 0(5): 75-78 |
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| Authors: | CHEN Zhi-yong MA Jun-hua |
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| Affiliation: | CHEN Zhi-yong,MA Jun-hua(College of Electrical Engineering,Zhejiang University,Hangzhou 310027,China) |
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| Abstract: | A design of dimmable LED power supply for 220Vac is introduced.The input 220Vac 50Hz power went through a cutting phase dimmer regulator firstly,and then the power was transferred to LED by a BUCK circuit.Based on the control of SSL2101 and measuring the dimming command from the cut phase waveshape,the frequency and duty cycle of PWM was controlled to obtain the LED lamp dimmable;the dimmable effect is similar to a nominal electric incandescent lamp.The test result shows that this design of dimmable LED pow... |
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| Keywords: | electronic power supply LED power supply PWM(Pulse Width Modulation) dimmable |
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