http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
B-ISDN용 고효율 30W OBP SUPPLY MODULE의 설계 : 고밀도(5.5 mm) 트랜스 제작을 중심으로
李南烈,朴鍾伯 조선대학교 생산기술연구소 1996 生産技術硏究 Vol.18 No.2
A high-efficiency low-profile 30W power supply module suitable for telecommunications systems, such as ISDN, has been developed. This module has an efficiency of 90% and is only 7.2mm high by using a simple MOSFET synchronous rectifier and low-profile transformer with flat E core and planar windings. Its volume is 37㎤ and its power density is 0.8 W/㎤. It is half the size of a conventional module under natural convection cooling conditions.
이남렬,박종백 조선대학교 생산기술연구소 1997 生産技術硏究 Vol.19 No.1
A method of getting high efficiency in high freqency converters of low voltage output is presented, where MOSFET synchronous rectifier is combined with a saturable transformer for commutation. By this method, switching losses and switching surges due to the parasitic capacitance and the parasitic diode of MOSFET are reduced. As the results of experiment on the converter of 3V output at f = 500khz, we find that the efficiency is greatly improved with this method.