http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
이정호(J.H.Lee),최대규(D.K.Choi),최상돈(S.D.Choi),최해영(H.Y.Choi),원충연(C.Y.Won),김수석(S.S.Kim) 전력전자학회 2003 전력전자학술대회 논문집 Vol.2003 No.7(1)
When ICP(Inductive Coupled Plasma) type etching and wafer manufacturing is being processed m semiconductor process, a noxious gas in PFC and CFC system is generated Gas cleaning dry scrubber is to remove This noxious gas. This paper describes a power source device, 2MHz switching frequency class 2kW RF Generator, used as a main power source of the gas cleaning dry scrubber. The power stage of DC/DC converter is consist of full bridge type converter with 100kHz switching frequency. Power amplifier is push pull type inverter with 2MHz switching frequency, and transmission line transformer The adequacy of the circuit type and the reliability of generating plasma In various load conditions are verified through 50Ω dummy load and chamber experiments result
김은수(E.S.Kim),최해영(H.Y Choi),조기연(K.Y.Joe),계문호(M.H.Kye),김윤호(Y.H.Kim) 전력전자학회 1997 전력전자학술대회 논문집 Vol.1997 No.-
The conventional high frequency phase-shifted full bridge dc/dc converter has a disadvantage that a circulating current flows through transformer and switching devices during the freewheeling interval. Due to this circulating current, RMS current stress, conduction losses of transformer and<br/> switching devices are increased. To alleviate this problem, this paper provides a<br/> circulating current free type high frequency soft switching phase-shifted full bridge (FB) dc/dc converter with energy recovery snubber (ERS) attached at the secondary side of transformer. The energy recovery snubber (ERS) adopted in this study is consisted of three fast recovery diode(Dsl, DS2, Ds3), two resonant capacitor (Csl, Cs2).
김은수(E S. Kim),최해영(H Y. Choi),조기연(K Y. Joe),김윤호(Y H. Kim) 전력전자학회 1998 전력전자학술대회 논문집 Vol.- No.-
In this paper, an improved soft switching forward dc/dc converter is proposed. The proposed converter is constructed by using non-dissipate snubbers in parallel with the main switch and output diode of the conventional forward converter. Due to use of the non-dissipative snubbers, the proposed converter achieves zero-voltage switching for all switching devices and output diodes without switching losses. The complete operating principles and experimental results will be presented.<br/> <br/>
무손실 스너버 적용 소프트 스위칭 Forward 컨버터
김은수(E S. Kim),김태진(K Y. Joe),최해영(T J. Kim),조기연(H Y. Choi),김윤호(Y H. Kim) 전력전자학회 1997 전력전자학술대회 논문집 Vol.1997 No.-
To achieve high efficiency in high power and high frequency applications, reduction of switching losses and noise is very important. In this paper, an improved soft switching forward converter is proposed. The proposed converter is constructed by using non-dissipative snubbers in parallel with the main switch and output diode of the conventional forward converter. Due to the use of the non-dissipative snubbers in the primary and secondary, the proposed converter achieves zero-voltage and zero-current switching for all switching devices without switching losses and output diode recovery losses. The complete operating principles, theoritical analysis, experimental results will be presented.
대용량 ZVS FB DC/DC 컨버터에 있어서 Digital-To-Phase Shift PWM 발생회로
김은수(E. S. Kim),김태진(T. J Kim),최해영(C. H. Choi),박순구(S. G Park),김윤호(Y. H. Kim),이재학(J. H. Lee) 전력전자학회 1999 전력전자학술대회 논문집 Vol.1999 No.7
With the advent of the high-speed microprocessor and DSP, the possibility of executing a control strategy m digital domain has become a reality. By the use of the DSP and microprocessor controller, many high power converters such as especially inverter and motor drive system may be enhanced resulting m the improved robustness to EMI, the ability to communicate the operating conditions and the ease of adjusting the control parameters, But, the digital controller using DSP or microprocessor is not applied m the high frequency switching power supplies, espe챠ally full bridge DC/DC converter So, this paper presents the method and realization of designing a digital-to-phase shift PWM circuit for full digital controlled full bridge DC/DC converter with zero voltage switching, The operating principles, simulation and experimental results will be presented,