| 基于双输出反激变换器的LED驱动电源设计 |
| |
| 引用本文： | 柏淑红.基于双输出反激变换器的LED驱动电源设计[J].电源技术应用,2012(4):22-26,41. |
| |
| 作者姓名： | 柏淑红 |
| |
| 作者单位： | 成都电子机械高等专科学校电气与电子工程系,四川成都610027 |
| |
| 摘 要： | 针对LED灯输出电流恒定的工作特性，提出了DC／DC变换器电感电流工作在不断续模式（DCM）下的双输出反激变换器驱动LED的控制方法。主要分析了两路LED灯负载的工作过程，用一个磁性元件实现LED灯两路控制器恒流输出。通过小信号模型分析了系统的稳态、动态和高频干扰抑制能力，最后通过实验验证了所提出的拓扑电路结构和控制方法的可行性。
|
| 关 键 词： | LED驱动 双输出悼 流源 反激变换器 时分复用 |
HB-LED Driver based on Dual-Output Flyback Converter |
| |
| BAI Shu-hong.HB-LED Driver based on Dual-Output Flyback Converter[J].Power Supply Technologles and Applications,2012(4):22-26,41. |
| |
| Authors: | BAI Shu-hong |
| |
| Affiliation: | BAI Shu-hong (Department of Electrical Engineering, Chendu Electromechanical College, Chengdu Sichuan 610027) |
| |
| Abstract: | According to the LED light output current constant working characteristic,the DC/DC converter inductor current in discontinuous-conduction mode （DCM） of the dual-output flyback converter LED driver control is proposed. By a magnetic part to realize LED lamp two controllers constant current output, the two LED lamp load working process are discussed. The small signal model was analyzed, and the simulation shows that the system steady, dynamic and high frequency interference suppression ability can achieve very good results, the experiments validate feasibility of the circuit topology structure and the control method. |
| |
| Keywords: | LED driver dual-output constant current source flyback converter timing-multiplexing |
| 本文献已被 CNKI 维普 等数据库收录！ |
