| 基于Sepic无桥有源功率因数校正变换器研究 |
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| 引用本文： | 高潮,陆治国,马雪峰.基于Sepic无桥有源功率因数校正变换器研究[J].电力电子技术,2011,45(5):46-48. |
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| 作者姓名： | 高潮 陆治国 马雪峰 |
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| 作者单位： | 1. 深圳信息职业技术学院,电子工程系,广东,深圳,518029
2. 重庆大学,输配电装备及系统安全与新技术国家重点实验室,重庆,400030 |
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| 摘 要： | 采用无桥技术取代了传统功率因数开关校正(PFC)电路前端的整流桥,构建了一种新型的无桥Sepic-PFC电路.在开关开通过程中,输入电流仅流过一个二极管,有效地减小了导通过程中能量的消耗.电路工作在电流断续模态,减小了输入电路的电磁干扰,同时使得开关管软启动和二极管零电流关断,减小了开关管的导通损耗和二极管的反向恢复损...
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| 关 键 词： | 功率因数校正 断续模式 无桥 |
Research on the Bridgeless PFC Based on Sepic Rectifier |
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| GAO Chao,LU Zhi-guo,MA Xue-feng.Research on the Bridgeless PFC Based on Sepic Rectifier[J].Power Electronics,2011,45(5):46-48. |
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| Authors: | GAO Chao LU Zhi-guo MA Xue-feng |
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| Affiliation: | 1.Shenzhen Institute of Information Technology,Shenzhen 518029,China; 2.State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University,Chongqing 400030,China) |
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| Abstract: | Bases on the traditional basic Sepic power factor correction(PFC) a bridgeless Sepic-PFC circuit is pro-posed,which utilizes a bridgeless technology to elimainate the bridge rectifier in the circuit.The current only flows through one diode when the switch is on,it can effectively reduce the conduction loss.The circuit operates in DCM,it reduces the input circuit EMI and makes switch soft turn-on and the diode zero-current turn-off,while reducing the switch conduction loss and diode reverse-recovery loss.Operation principle and the formulas of the circuit are de-scribed,the correctness and practicability of this method are verified by Saber simulation and prototype experiments. |
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| Keywords: | power factor correction discontinuous current mode brigeless |
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