Single Power-Conversion AC-DC Converter With High Power Factor and High Efficiency
SCIE
SCOPUS
- Title
- Single Power-Conversion AC-DC Converter With High Power Factor and High Efficiency
- Authors
- Cho, YW; Kwon, JM; Kwon, BH
- Date Issued
- 2014-09
- Publisher
- IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
- Abstract
- This paper proposes a single power-conversion ac-dc converter with high power factor and high efficiency. The proposed converter is derived by integrating a full-bridge diode rectifier and a series-resonant active-clamp dc-dc converter. To obtain a high power factor without a power factor correction circuit, this paper proposes a novel control algorithm. The proposed converter provides single power-conversion by using the novel control algorithm for both power factor correction and output control. Also, the active-clamp circuit clamps the surge voltage of switches and recycles the energy stored in the leakage inductance of the transformer. Moreover, it provides zero-voltage turn-on switching of the switches. Also, a series-resonant circuit of the output-voltage doubler removes the reverse-recovery problem of the output diodes. The proposed converter provides maximum power factor 0.995 and maximum efficiency of 95.1% at the full load. The operation principle of the converter is analyzed and verified. Experimental results for a 400 W ac-dc converter at a constant switching frequency of 50 kHz are obtained to show the performance of the proposed converter.
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/14131
- DOI
- 10.1109/TPEL.2013.2286832
- ISSN
- 0885-8993
- Article Type
- Article
- Citation
- IEEE TRANSACTIONS ON POWER ELECTRONICS, vol. 29, no. 9, page. 4797 - 4806, 2014-09
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