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SRM 인버터의 병렬 스위칭을 위한 새로운 스위칭 패턴
이상훈(S. H. Lee),이상훈(S. H. Lee),정성우(S. W. Jung),임헌호(H. H. LIM),박성준(S. J. Park),안진우(J. W. Ahn) 전력전자학회 2002 전력전자학술대회 논문집 Vol.- No.-
A SRM inverter has very low switching frequency, This results m reducing the burden for a high-speed of the gate-amp interface circuit. and the linearity of optocoupler is used to protect the intanteneous peak current for the stable operation<br/> In this paper, series resistor is used to equal the current sharing of each switching device and a linear gate-amp is proposed to protect the intanteneous peak current which occurs in transient state.
1차 제균치료에 실패한 Helicobacter pylori 양성인 환자에서 OBMT 사제요법의 2주 치료 효과
박성철 ( Sung Chul Park ),전훈재 ( Hoon Jai Chun ),정성우 ( Sung Woo Jung ),금보라 ( Bo Ra Keum ),한우식 ( Woo Sik Han ),정록선 ( Rok Son Choung ),김용식 ( Yong Sik Kim ),진윤태 ( Yoon Tae Jeen ),이홍식 ( Hong Sik Lee ),엄순호 ( S 대한소화기학회 2004 대한소화기학회지 Vol.44 No.3
Background/Aims: As a second-line treatment for H. pylori eradication in the case of first-line OAC (omeprazole, amoxicillin, clarithromycin) treatment failure, a minimum of one-week OBMT quadruple therapy composed of omeprazole, bismuth, metronidazole, t