本文選題：LED + 驅動電源　； 參考：《西安電子科技大學》2014年碩士論文

【摘要】：隨著半導體技術的快速發(fā)展，LED(Light Emitting Diode)照明已經在生活、生產中扮演著重要的角色。與傳統(tǒng)的LED開關電源相比，新型LED照明技術因其具有可靠性高、電氣隔離、光學調光、環(huán)保性能好等優(yōu)點而成為未來節(jié)能照明的發(fā)展方向。 針對LED的特性研究，論文設計了一款LED恒流驅動電源。本文設計的驅動電源采用兩級驅動結構。為了提高變換器輸入端功率因數，減少對電網的諧波污染，前級電路采用了PFC技術，對Boost PFC電路的工作原理進行了詳細研究，對FAN7527B的外圍電路進行了詳細的設計。為了減小開關損耗，提高變換器的效率，后級電路采用了準諧振的反激變換技術，對準諧振反激電路的工作原理進行分析，設計了芯片STR-Y6753的外圍電路。開關電源的輸出級采用芯片AP4310完成恒流恒壓的功能。采用Saber軟件對LED電源進行了建模仿真，得到電路的工作性能參數。 仿真結果分析表明，LED開關電源工作效率在85%以上，功率因數為0.90，紋波系數在1%以內，，驗證了設計方案的可行性。
[Abstract]:With the rapid development of semiconductor technology, LEDX Light Emitting Diode (LED) lighting has played an important role in daily life and production. Compared with the traditional LED switching power supply, the new LED lighting technology has the advantages of high reliability, electrical isolation, optical dimming, good environmental performance and so on, so it will become the development direction of energy-saving lighting in the future. In view of the characteristic research of LED, a LED constant current driving power supply is designed in this paper. The power supply designed in this paper adopts two-stage drive structure. In order to improve the input power factor of the converter and reduce the harmonic pollution to the power grid, the PFC technology is used in the front stage circuit. The working principle of the Boost PFC circuit is studied in detail, and the peripheral circuit of FAN7527B is designed in detail. In order to reduce the switching loss and improve the efficiency of the converter, the backstage circuit adopts the quasi-resonant flyback conversion technology, analyzes the working principle of the resonant flyback circuit, and designs the peripheral circuit of the chip STR-Y6753. The output stage of the switching power supply uses chip AP4310 to complete the function of constant current and constant voltage. Saber software is used to model and simulate the LED power supply, and the performance parameters of the circuit are obtained. The simulation results show that the efficiency of LED switching power supply is more than 85%, the power factor is 0.90 and the ripple coefficient is less than 1%. The feasibility of the design is verified.
【學位授予單位】：西安電子科技大學
【學位級別】：碩士
【學位授予年份】：2014
【分類號】：TM923.34

【參考文獻】

相關期刊論文 前9條

1 毛興武,鄭周;功率因數校正控制器FAN7527及應用電路[J];半導體技術;2001年03期

2 毛鴻,吳兆麟;有源功率因數校正器的控制策略綜述[J];電力電子技術;2000年01期

3 趙清泉,夏曉玲;半導體發(fā)光二極管的應用及其前景[J];大眾科技;2005年06期

4 辛伊波,張松蘭,錢偉;AC-DC變換器有源功率因數校正技術研究[J];洛陽工業(yè)高等�？茖W校學報;2001年01期

5 宗強;吳曉波;陳海;郝炳賢;;ZVS開關電源中的谷底檢測電路設計[J];微電子學;2008年05期

6 陳登鍇;王君艷;;BOOST功率因數校正器在三種工作模式下特性的比較[J];現(xiàn)代電子技術;2007年11期

7 范俊杰;寧凡;;LED驅動電源的現(xiàn)狀與展望[J];中國科技信息;2009年15期

8 王富光;陳修林;張順彪;譚紅林;;一種高可靠性準諧振反激式開關電源的設計[J];電子元器件應用;2012年10期

9 王琪;;基于FAN7527B的LED電源設計[J];電子元器件應用;2011年08期

本文編號：1789761