一种改进的同步反激AC/DC变换器电流驱动方法

Xiaogao Xie, Junming Zhang, Chen Zhao, Z. Qian
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引用次数: 16

摘要

对于低输出电压和相对大电流的应用,同步整流技术有助于提高反激变换器的效率。提出了一种改进的同步整流器电流驱动方法。与以往提出的电流驱动同步整流器(CDSR)相比,本文提出的CDSR具有结构简单、驱动损耗低、元件电压应力小、性能优良等特点。对反激变换器样机的分析和实验证明了改进方法的有效性
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An Improved Current-Driven Method for Synchronous Flyback AC/DC Converters
For low output voltage and relatively high current applications, synchronous rectifier technique can help improve efficiency in a flyback converter. An improved current-driven method for the synchronous rectifier (SR) is presented. Compared to the previous proposed current driven synchronous rectifier (CDSR), the proposed CDSR features simple structure, low driving loss, low component voltage stress and good performance. Analysis and experiments on a flyback prototype converter demonstrate the performance of the improved approach
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