| 一种单级图腾柱无桥交流发光二极管驱动电源 |
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| 引用本文： | 薛晓明,陈宏.一种单级图腾柱无桥交流发光二极管驱动电源[J].电测与仪表,2014,51(21). |
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| 作者姓名： | 薛晓明 陈宏 |
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| 作者单位： | 常州信息技术学院计算机分院;江苏财经技术学院电子工程系; |
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| 基金项目： | 江苏省常州市科技支撑计划(CE20110065) |
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| 摘 要： | 针对交流发光二极管(AC LED)直接与市电连接存在效率低、谐波含量高以及频闪的问题,提出一种交流发光二极管(AC LED)驱动电源。提出的驱动电源采用单级图腾柱无桥结构,并辅之高频方波驱动策略,具有使用元件少、控制简单的优点。理论分析和实验证明:提出的驱动电源在输入电压10%波动范围内,效率大于90%,功率因素大于0.95,且无任何频闪。
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| 关 键 词： | 交流发光二极管 单级无桥功率因素校正 驱动电源 图腾柱 |
| 收稿时间： | 2014/5/19 0:00:00 |
| 修稿时间： | 2014/5/19 0:00:00 |
A Driver for AC-LED Based on Single StageBridgeless Totem Pole |
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| XUE Xiao-ming and CHEN Hong.A Driver for AC-LED Based on Single StageBridgeless Totem Pole[J].Electrical Measurement & Instrumentation,2014,51(21). |
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| Authors: | XUE Xiao-ming and CHEN Hong |
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| Affiliation: | Computer Branch College,Changzhou College of Information Technology,iangsu Vocational and Technical College of Finance& Economics |
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| Abstract: | Alternating Current Light Emitting Diode(AC-LED)works in declined efficiency and with high harmonic content and flickers when it is directly linked with the commercial power. This paper puts forward an AC-LED driver power supply, which uses fewer elements and can be easily controlled by adopting a bridgeless structure of single-stage totem poles with the driving strategy of high frequency square wave. Theory analysis and experiments have shown: within the 10% fluctuation of input voltage and with the driver power supply put forward in the paper, AC-LED works in the efficiency of more than 90%, with power factor above 0.95 and no flicker. |
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| Keywords: | AC-LED sing-stage bridgeless power factor correction driver power supply totem pole |
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