KOSEN 한인과학기술자네트워크

아래의 자료들은 산업기술정보원(http://www.kiniti.re.kr)을 통해 검색된 자료입니다. 웹을 통해 원문신청이 가능합니다. * Three-phase single-switch ZCS BUCK type PFC circuit [power factor correction circuit], Zou Xudong; Xu Zhixin; Li Jianfei;, J. Huazhong Univ. Sci. Technol. (China) vol.28, no.9 (Sept. 2000) (China), p40-2, 4 ref(s) Abstract : The basic topology and operating principles of a three-phase single-switch ZCS (zero-current switching) BUCK type of high-power-factor rectifier are illustrated, and the resonant operating characteristics are analyzed in one switching period to provide the design principles and parameter selections of the circuit. The experimental results and waveforms are verified on a 1-kVA prototype unit based on single-cycle control * Design of a 3000 Watt single MOSFET power factor correction circuit, Dierberger, K.; Grafham, D.;, Power Quality '93 USA. Official Proceedings of the Seventh International Power Quality Conference (1993), p875, pp236-49, 3 Abstract : The brains of a power system may be the controller chip but at its heart is the power switch. Catastrophic failures in power systems are generally attributable to the power devices, not the controller. Consequently, proper selection of the power components and the optimization of their working environment will have a profound influence on the system's overall dependability and efficiency. This paper discusses power section design and optimum matching of the controller to this power section. This paper presents the design of a single phase 3000 Watt (230V/sub AC/) power factor correction (PFC) circuit using a single large area high-current power MOSFET chip in conjunction with an advanced technology fast recovery epitaxial diode (FRED). These large area MOSFET die are available to replace the parallel MOSFET devices normally used in very high current PFC circuits. The use of a monolithic chip in an industry standard package simplifies layouts, makes for more compact designs, improves reliability and leaves the door ajar for eventual second sourcing. It is demonstrated that optimization of the PFC circuit depends on matching MOSFET switching behavior to the dynamic characteristics of the companion FRED, and to the physical layout of the power stage to minimize overvoltage transients and excessive EMI >단상 정류기의 PFC회로(UC2854 ...등)처럼 3상에 적용할 수 있는 PFC회로 및 드라이브 회로를 구합니다