Single-stage single-switch power factor correction AC/DC converter

被引：6
|
作者：
Do, HL [1 ]
机构：
[1] LG Elect Inc, Digital PDP Div, Gumi 730030, Gyung Buk, South Korea
来源：
IEE PROCEEDINGS-ELECTRIC POWER APPLICATIONS | 2005年 / 152卷 / 06期
关键词：
D O I：
10.1049/ip-epa:20050067
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 ; 0809 ;
摘要：
A single-stage single-switch power factor correction AC/DC converter is proposed in which the power factor correction (PFC) inductor is connedted to a tap on the primary winding of the DC/DC flyback converter stage; there is direct energy transfer of a part of the input energy to the output and theDC-bus voltage feedback. The additional discharge path in the PFC inductor and DC-bus voltage feedback effectively suppresses the DC-bus voltage and increases the overall efficiency. Experimental results for a 60 W converter at a constant switching frequency of 70 kHz are obtained to show the performance of the proposed converter. It is shown that the voltage across the DC-bus capacitor can be held below 405 V even though the converter operates in a wide range of input voltages (90 similar to 265 V AC) and the measured input current harmonics satisfy the IEC 61000-3-2 Class D requirements.
引用
收藏
页码：1578 / 1584
页数：7
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