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A Study on Open-frame Type DC-DC Converter Module for Low-Voltage High-Current Applications  

안태영 (청주대학교 정보통신공학부 조교수 · 공박)
황선민 (청주대학교 동양계전공업(주) 전원연구소 연구원)
조인호 (청주대학교 동양계전공업(주) 전원연구소 소장)
Publication Information
The Transactions of the Korean Institute of Electrical Engineers A / v.52, no.4, 2003 , pp. 183-183 More about this Journal
Abstract
We report the performance of an open-frame type low-voltage high-current DC-DC converter module developed using an active clamp forward converter circuit and current doubler rectifier. The converter module is designed with the specifications of an 1.8V output voltage, 25A output current, and 36-75V input voltage. The synchronous rectifier is used to reduce the conduction fuss at high current level and current-mode control is adapted to enhance the flexibility in the system configuration. A prototype converter module is successfully implemented within 10mm height and half brick size (58×61mm), and recorded an 84% efficiency and 4% voltage regulation for the entire input voltage range, thereby demonstrating its application potentials to future telecommunication electronics.
Keywords
Active clamp reset; Current doubler; DC-DC module; Synchronous rectifier;
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