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

被引：6

作者：

Fernández, A

Sebastián, J

Alou, P

Cobos, JA

Rascón, M

机构：

[1] Univ Oviedo, Gijon 33204, Spain

[2] Univ Politecn Madrid, Div Ingn Elect, E-28006 Madrid, Spain

[3] Alcatel Technol Grp, Madrid, Spain

来源：

IEEE TRANSACTIONS ON POWER ELECTRONICS | 2003年 / 18卷 / 04期

关键词：

IEC; 61000-3-2; regulations; low output voltage; power factor correction; single state topologies; synchronous rectification;

D O I：

10.1109/TPEL.2003.813761

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 [电气工程]; 0809 [电子科学与技术];

摘要：

The aim of this paper is to study the performance of an ac/dc converter with low output voltage and low input current harmonic content. 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 metal oxide semiconductor field effect transmitters (MOSFETs). Besides this, IEC 1000-3-2 regulations impose low input current harmonic contents for power levels higher than 75 W. In this paper, 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. The efficiency obtained in the prototype was very high for this application (86%) and both the size increase and the cost increase were quite low in comparison with the original topology with no synchronous rectification and no IEC 1000-3-2 compliance.

引用

页码：966 / 974

页数：9

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