Title :
Analysis of transformers for zero-current transition forward converters
Author :
Kasa, N. ; Kobayashi, M.
Author_Institution :
Okayama Univ. of Sci., Okayama, Japan
Abstract :
This paper presents an analysis of transformers for zero-current transition (ZCT) forward converters. In order to reduce switching losses and noises, a soft-switching technique is adopted. It is suitable for the pulse-width modulation (PWM), because the resonant transition is very short and it is independent of the switching frequency. To analyze and simulate a magnetic field distribution of the transformers, the ANSYS software is employed. The inductances of them depend on the saturation of the flux density. A prototype converter is implemented by a field programmable gate array (FPGA) and a 2.5 MHz analog to digital (A/D) converter.
Keywords :
PWM power convertors; analogue-digital conversion; circuit noise; field programmable gate arrays; losses; switching convertors; transformers; zero current switching; analog-to-digital converter; field programmable gate array; noise reduction; pulse width modulation; soft switching technique; switching loss; transformers; zero current transition forward converters; Analytical models; Converters; Radiation detectors; Switches;
Conference_Titel :
Modelling, Identification and Control (ICMIC), The 2010 International Conference on
Conference_Location :
Okayama
Print_ISBN :
978-1-4244-8381-5
Electronic_ISBN :
978-0-9555293-3-7
