Single-Stage Soft-Switching Converter With Boost Type of Active Clamp for Wide Input Voltage Ranges
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SCOPUS
- Title
- Single-Stage Soft-Switching Converter With Boost Type of Active Clamp for Wide Input Voltage Ranges
- Authors
- Choi, WY; Kwon, JM; Lee, JJ; Jang, HY; Kwon, BH
- Date Issued
- 2009-03
- Publisher
- IEEE-INST ELECTRICAL ELECTRONICS ENGI
- Abstract
- A single-stage soft-switching converter is proposed for universal line voltage applications. A boost type of active-clamp circuit is used to achieve zero-voltage switching operation of the power switches. A simple dc-link voltage feedback scheme is applied to the proposed converter. A resonant voltage-doubler rectifier helps the output diodes to achieve zero-current switching operation. The reverse-recovery losses of the output diodes can be eliminated without any additional components. The dc-link capacitor voltage can be reduced, providing reduced voltage stresses of switching devices. Furthermore, power conversion efficiency can be improved by the soft-switching operation of switching devices. The performance of the proposed converter is evaluated on a 160-W (50 V/3.2 A) experimental prototype. The proposed converter complies with International Electrotechnical Commission (IEC) 1000-3-2 Class-D requirements for the light-emitting diode power supply of large-sized liquid crystal displays, maintaining the dc-link capacitor voltage within 400 V under the universal line voltage (90-265 V-rms).
- Keywords
- Active clamp; single stage; voltage-doubler rectifier; zero-current switching (ZCS); zero-voltage switching (ZVS); POWER-FACTOR-CORRECTION; CORRECTION AC/DC CONVERTERS; HALF-BRIDGE TOPOLOGY; SYNCHRONOUS RECTIFICATION; ELECTRONIC BALLAST; OUTPUT VOLTAGE; BUS VOLTAGE; REDUCTION; SUPPRESSION; RECTIFIER
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/28693
- DOI
- 10.1109/TPEL.2008.2008307
- ISSN
- 0885-8993
- Article Type
- Article
- Citation
- IEEE TRANSACTIONS ON POWER ELECTRONICS, vol. 24, no. 3, page. 730 - 741, 2009-03
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