• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>2010 the 5th IEEE Conference on Industrial Electronics and Applications >High power factor Flyback converter for LED driver with Boundary Conduction Mode control
【24h】

High power factor Flyback converter for LED driver with Boundary Conduction Mode control

机译：用于具有边界传导模式控制的LED驱动器的高功率因数反激转换器

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

A varying-frequency control Flyback rectifier for LED driving in Boundary-Conduction Mode (BCM) is presented. Comparing with Discontinuous-Conduction Mode, BCM has the advantages like smaller coupling inductor current, less current stress for circuit component, slight output current ripple, and higher power factor performance. For lower output application circumstance, the boundary conduction mode can be chosen with smaller inductance value. In this control scheme, input line voltage sensing, analog multiplier/divider and inner current loop are neglected. Design and analysis for BCM control circuit are derived and simulated. To verify the ideal vary-frequency controller, the circuit experiment has been applied to driving LED module, and stabilized the output current. The experimental results show that the system can provide constant current output with high power factor and it also compared with the system is operating in DCM.
机译：提出了一种用于边界驱动模式（BCM）的LED驱动的变频控制反激式整流器。与不连续导通模式相比，BCM具有以下优点：耦合电感器电流更小，电路组件的电流应力更小，输出电流纹波更小以及功率因数性能更高。对于较低的输出应用环境，可以选择具有较小电感值的边界传导模式。在这种控制方案中，忽略了输入线电压检测，模拟乘法器/分压器和内部电流环路。推导并仿真了BCM控制电路的设计与分析。为了验证理想的变频控制器，已将电路实验应用于驱动LED模块，并稳定了输出电流。实验结果表明，该系统可提供高功率因数的恒定电流输出，并且与在DCM中运行的系统相比。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号