http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
TMS320F2812 DSP와 스마트 파워모듈을 사용한 유도전동기 소형 벡터제어 시스템의 구현
임정규(Jeong-Gyu Lim),김석환(Seok-Hwan Kim),정세교(Se-Kyo Chung) 전력전자학회 2004 전력전자학술대회 논문집 Vol.- No.-
This paper presents an implementation of compact vector control system for induction motor using a digital signal processor (DSP) and a smart power module (SPM). The DSP TMS320F2812 has most necessary functions for ac motor control in a single chip and SPM provides a compact power stage. The indirect vector control algorithm is implemented in the drive system using these devices. The developed system is applied by 0.8㎾ induction servo motor and the all functions are verified through the experiments.
Intelligent Power Module의 플로팅 게이트 전원 공급을 위한 전하 펌프 회로의 설계
임정규(Jeong-Gyu Lim),김석환(Seok-Hwan Kim),서은경(Eun-kyung Seo),정세교(Se-Kyo Chung) 전력전자학회 2005 전력전자학술대회 논문집 Vol.- No.-
A bootstrap circuit for floating power supply has the advantage of being simple and inexpensive. However, the duty cycle and on-time are limited by the requirement to refresh the charge in the bootstrap capacitor. Hence, this paper deals with a design of charge pump circuit for a floating gate power supply of an IPM. The operation of the proposed circuit applied by three-phase inverter system for driving induction motor are verified through the experiments.
임정규(Jeong-Gyu Lim),임수현(Soo-Hyun Lim),신휘범(Hwi-Beom Shin),정세교(Se-Kyo Chung),이현우(Hyun-Woo Lee) 전력전자학회 2006 전력전자학술대회 논문집 Vol.- No.-
This paper presents the design and implementation of a digital control system for a Phase Shifted Full-Bridge PWM Converter. The digital control of Phase Shifted Full-Bridge PWM Converter provides many advantageous of easily generating various phase-shift timing and implementing a complex voltage and current control algorithm. Based on the derived small-signal model, the digital controller is designed in the discrete domain. The designed digital controller implemented using the DSP TMS320F2812. The performance is proved through the experimental results.
Doxycycline(Vibramycin<sup>??</sup>)의 호흡기감염증(呼吸器感染症)에 대(對)한 임상적(臨床的) 효과(效果)
임정규(J.H. Lim),김명석(M.S. Ki),신상구(S.G. Shin),윤효인(H.I. Yoon),홍사악(S.A. Hong) 대한약리학회 1975 대한약리학잡지 Vol.11 No.2
Pan-Korean multi-center trial of doxycycline in the treatment of upper and lower respiratory infection was carried out in the summer(from May to October) of 1975. A total of 204 patients between the ages of 3 and 75 was treated by 37 physicians including the internal medicine, pediatrics and ENT specialist in 17 general hospitals and 2 private clinics all-over the country. The dosage recommended was 200 mg on the first day of therapy followed by 100 mg daily thereafter. The pediatric dosage was 4 mg/kg on the first day and then 2mg/kg on each successive day. The subjective and objective signs of respiratory infection such as temperature, cough, sputum, pain and associated inflammatory symptoms were assessed using the carefully designed protocols and it showed rapid improvement by the fifth day (80%) of therapy. Only minor side-effects were reported and these were mild and mainly limited to gastrointestinal tract. The overall evaluation of the trial showed that 170 patients(83.3%) had a very good or good result, 13 patients (6.4%) a moderate and another 13 patients (6.4%) a negative result.
PC1D를 이용한 junction depth에 따른 결정질 실리콘 태양전지의 특성 분석
임정규(Lim, Jungkyu),이준신(Yi, Junsin) 한국신재생에너지학회 2011 한국신재생에너지학회 학술대회논문집 Vol.2011 No.11
일반적으로 결정질 실리콘 태양전지에서는 junction depth가 얕아짐으로써 단파장 영역에서의 수집효율이 향상되고 Jsc가 상승하기 때문에 junction depth가 얕은 것이 좋다. 또, 태양전지의 효율을 높이기 위해서는 낮은 재결합 속도가 필요한데 이를 위해서도 얕은 junction depth가 필요하다. 하지만 junction depth가 너무 얕으면 FF와 Voc가 낮아져 효율이 떨어지므로 junction depth를 최적화 할 필요가 있다. 본 논문에서는 PC1D 시뮬레이션을 사용하여 표면 농도를 고정시키고 junction depth를 가변하면서 이에 따른 cell의 parameter변화를 관찰하였다. 그 결과, 면저항 120{Omega}/{square}에서부터 효율이 saturation되었고, 그에 따른 parameter 값은 FF=76.28%, Jsc=38.17mA/cm², Voc=596.5V이며 junction depth가 0.1726{mu}m일 때 효율은 17.37%이다.