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Switching Power Module for a Small-Sized Electric Power Source  

김병철 (진주산업대학교 전자공학과)
Publication Information
Journal of the Korea Institute of Information and Communication Engineering / v.8, no.5, 2004 , pp. 1068-1073 More about this Journal
Abstract
5 V/500 mA transless type power module was designed by using a semiconductor switching technique for a small-sized electric power source. It used voltage drop type chopper method, and is composed of switching circuit, control circuit, voltage detect circuit, and constant voltage circuit. The switching power module which is designed in this study, showed load regulation of 0.2 V, line regulation of 0.1 V, output ripple of 85 mVp-p, switching frequency of 64.7 kHz, maximum power efficiency of 58 %, and satisfied its reliability and EMC test.
Keywords
Switching Power Module; Transless Type Regulator; Small-Sized Electric Power Source; Voltage Drop Type Chopper;
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