Design Consideration and Analysis of Quasi -ResonanceFlyback Converter

碩士 === 東南科技大學 === 電機工程研究所 === 97 === This thesis presents design considerations of a high efficient quasi-resonance flyback converter under soft switching QR mode operating in Discontinuous conduction mode (DCM). Two kinds of control strategies for QR flyback converters are described and compared. T...

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Bibliographic Details
Main Authors: HUANG,HAO-HSUAN, 黃浩軒
Other Authors: 謝冠群
Format: Others
Language:zh-TW
Published: 2009
Online Access:http://ndltd.ncl.edu.tw/handle/62711014857764532277
Description
Summary:碩士 === 東南科技大學 === 電機工程研究所 === 97 === This thesis presents design considerations of a high efficient quasi-resonance flyback converter under soft switching QR mode operating in Discontinuous conduction mode (DCM). Two kinds of control strategies for QR flyback converters are described and compared. Two examples of 90W (19Vdc/4.8 A) QR flyback converters are designed and examined under input voltage of 90 ~ 264Vac / 50-60Hz. The efficiencies for the two converters are quite the same as about 88% and their performance can actually match Energy Star5 standard requirements.