Study and Implementation of Asymmetrical Half-Bridge Converter
碩士 === 國立高雄第一科技大學 === 電子工程研究所 === 100 === Compared with conventional hard-switching mode, the soft switching technique causes smaller losses in applications of Switching Power Supply (SPS). The asymmetrical half-bridge converter with synchronous rectification and soft-switching technique uses turn-o...
Main Authors: | , |
---|---|
Other Authors: | |
Format: | Others |
Language: | zh-TW |
Published: |
2012
|
Online Access: | http://ndltd.ncl.edu.tw/handle/41514623530404114314 |
id |
ndltd-TW-100NKIT5428014 |
---|---|
record_format |
oai_dc |
spelling |
ndltd-TW-100NKIT54280142015-10-13T21:33:08Z http://ndltd.ncl.edu.tw/handle/41514623530404114314 Study and Implementation of Asymmetrical Half-Bridge Converter 非對稱半橋轉換器之研製 Feng-Jie Chiou 仇鳳傑 碩士 國立高雄第一科技大學 電子工程研究所 100 Compared with conventional hard-switching mode, the soft switching technique causes smaller losses in applications of Switching Power Supply (SPS). The asymmetrical half-bridge converter with synchronous rectification and soft-switching technique uses turn-on and turn-off hours to achieve soft switching mode for reducing losses at high frequency, voltage and current stresses between two power switches. To reduce losses, multiplication of forward voltage and current, and increase efficiency of asymmetrical half-bridge converter, the super fast diodes are replaced with the synchronous rectification technique in secondary side of transformer. In this experiment, the turns ratio of transformer is designed to match duty cycles for devices with asymmetrical and complementary operation. Moreover, operating principle of circuit, analysis of steady-state and transient state, and design consideration are all discussed in this thesis.Finally, A 300 W prototype with 400Vdc input and 24Vdc output operating with PWM IC-L6591 is built and tested, and the efficiency at full load is 92.09% which verifies the feasibility of theoretical analysis. Kuo-Ching Tseng 曾國境 2012 學位論文 ; thesis 55 zh-TW |
collection |
NDLTD |
language |
zh-TW |
format |
Others
|
sources |
NDLTD |
description |
碩士 === 國立高雄第一科技大學 === 電子工程研究所 === 100 === Compared with conventional hard-switching mode, the soft switching technique causes smaller losses in applications of Switching Power Supply (SPS). The asymmetrical half-bridge converter with synchronous rectification and soft-switching technique uses turn-on and turn-off hours to achieve soft switching mode for reducing losses at high frequency, voltage and current stresses between two power switches. To reduce losses, multiplication of forward voltage and current, and increase efficiency of asymmetrical half-bridge converter, the super fast diodes are replaced with the synchronous rectification technique in secondary side of transformer. In this experiment, the turns ratio of transformer is designed to match duty cycles for devices with asymmetrical and complementary operation. Moreover, operating principle of circuit, analysis of steady-state and transient state, and design consideration are all discussed in this thesis.Finally, A 300 W prototype with 400Vdc input and 24Vdc output operating with PWM IC-L6591 is built and tested, and the efficiency at full load is 92.09% which verifies the feasibility of theoretical analysis.
|
author2 |
Kuo-Ching Tseng |
author_facet |
Kuo-Ching Tseng Feng-Jie Chiou 仇鳳傑 |
author |
Feng-Jie Chiou 仇鳳傑 |
spellingShingle |
Feng-Jie Chiou 仇鳳傑 Study and Implementation of Asymmetrical Half-Bridge Converter |
author_sort |
Feng-Jie Chiou |
title |
Study and Implementation of Asymmetrical Half-Bridge Converter |
title_short |
Study and Implementation of Asymmetrical Half-Bridge Converter |
title_full |
Study and Implementation of Asymmetrical Half-Bridge Converter |
title_fullStr |
Study and Implementation of Asymmetrical Half-Bridge Converter |
title_full_unstemmed |
Study and Implementation of Asymmetrical Half-Bridge Converter |
title_sort |
study and implementation of asymmetrical half-bridge converter |
publishDate |
2012 |
url |
http://ndltd.ncl.edu.tw/handle/41514623530404114314 |
work_keys_str_mv |
AT fengjiechiou studyandimplementationofasymmetricalhalfbridgeconverter AT chóufèngjié studyandimplementationofasymmetricalhalfbridgeconverter AT fengjiechiou fēiduìchēngbànqiáozhuǎnhuànqìzhīyánzhì AT chóufèngjié fēiduìchēngbànqiáozhuǎnhuànqìzhīyánzhì |
_version_ |
1718065964077023232 |