采用同步整流新方案的低输出电压AC/DC变换器，符合IEC 1000-3-2规定

APEC 2000. Fifteenth Annual IEEE Applied Power Electronics Conference and Exposition (Cat. No.00CH37058) Pub Date : 2000-02-06 DOI:10.1109/APEC.2000.822579

A. Fernández, J. Sebastian, P. Alou, J. Cobos, M. Rascon

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引用次数: 14

摘要

为了获得低输出电压和高效率，同步整流是必须的。当输出电压较低时，很难使用自驱动同步整流，需要使用额外的绕组来正确驱动mosfet。此外，IEC 1000-3-2规定，功率等级高于75w时，输入电流谐波含量要低。最近提出的同步整流方案与改进的输入电流整形器相结合，设计出符合IEC 1000-3-2规定的100w, 3.3 V AC/DC转换器。

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Low output voltage AC/DC converter with a new scheme of synchronous rectification that complies with IEC 1000-3-2 regulations

In order to obtain low output voltages with a high efficiency, synchronous rectification is mandatory. When the output voltage is low, it is very difficult to use self-driven synchronous rectification and additional windings are used to properly drive the MOSFETs. Moreover, IEC 1000-3-2 regulations impose low input current harmonic contents for power levels higher than 75 W. A recently proposed synchronous rectification scheme is combined with a modified input current shaper to design a 100 W, 3.3 V AC/DC converter that complies with IEC 1000-3-2 regulations.

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APEC 2000. Fifteenth Annual IEEE Applied Power Electronics Conference and Exposition (Cat. No.00CH37058)

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