A Boost Regulator with Voltage-Mode Control for Low Voltage Applications

碩士 === 國立成功大學 === 電機工程學系碩博士班 === 94 === A dc-dc voltage-mode boost converter operated in low voltage applications is introduced in this thesis. The boost converter is used to convert Li-ion battery voltage (2.7 V ~ 4.2 V) to 5 V. The synchronous rectification architecture is used to reduce conductio...

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Main Authors: Yu-Jung Lin, 林育蓉
Other Authors: Bin-Da Liu
Format: Others
Language:en_US
Published: 2006
Online Access:http://ndltd.ncl.edu.tw/handle/46212388465032996556
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spelling ndltd-TW-094NCKU54421522015-12-16T04:31:53Z http://ndltd.ncl.edu.tw/handle/46212388465032996556 A Boost Regulator with Voltage-Mode Control for Low Voltage Applications 低電壓應用之電壓控制式昇壓穩壓器 Yu-Jung Lin 林育蓉 碩士 國立成功大學 電機工程學系碩博士班 94 A dc-dc voltage-mode boost converter operated in low voltage applications is introduced in this thesis. The boost converter is used to convert Li-ion battery voltage (2.7 V ~ 4.2 V) to 5 V. The synchronous rectification architecture is used to reduce conduction loss and the high efficiency is obtained. At initial operation of the system, sudden current may be generated and soft start circuit is used to avoid this situation and to protect the converter system. When the converter system is operated in discontinuous conduction mode (DCM), higher reversed current will be occurred because of the bi-directional switching of the synchronous rectifier. In order to solve this problem, a zero current detector circuit is designed and power consumption is reduced. Finally, the feedback model is presented and simulated to select suitable compensation networks. Simulation results show that the efficiency of the boost converter is 94 % with 3.6 V input voltage and 5 V / 250 mA conduction. This circuit is implemented with TSMC 0.35μm 3.3/5 V CMOS technology. Bin-Da Liu Tsorng-Juu Liang 劉濱達 梁從主 2006 學位論文 ; thesis 69 en_US
collection NDLTD
language en_US
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description 碩士 === 國立成功大學 === 電機工程學系碩博士班 === 94 === A dc-dc voltage-mode boost converter operated in low voltage applications is introduced in this thesis. The boost converter is used to convert Li-ion battery voltage (2.7 V ~ 4.2 V) to 5 V. The synchronous rectification architecture is used to reduce conduction loss and the high efficiency is obtained. At initial operation of the system, sudden current may be generated and soft start circuit is used to avoid this situation and to protect the converter system. When the converter system is operated in discontinuous conduction mode (DCM), higher reversed current will be occurred because of the bi-directional switching of the synchronous rectifier. In order to solve this problem, a zero current detector circuit is designed and power consumption is reduced. Finally, the feedback model is presented and simulated to select suitable compensation networks. Simulation results show that the efficiency of the boost converter is 94 % with 3.6 V input voltage and 5 V / 250 mA conduction. This circuit is implemented with TSMC 0.35μm 3.3/5 V CMOS technology.
author2 Bin-Da Liu
author_facet Bin-Da Liu
Yu-Jung Lin
林育蓉
author Yu-Jung Lin
林育蓉
spellingShingle Yu-Jung Lin
林育蓉
A Boost Regulator with Voltage-Mode Control for Low Voltage Applications
author_sort Yu-Jung Lin
title A Boost Regulator with Voltage-Mode Control for Low Voltage Applications
title_short A Boost Regulator with Voltage-Mode Control for Low Voltage Applications
title_full A Boost Regulator with Voltage-Mode Control for Low Voltage Applications
title_fullStr A Boost Regulator with Voltage-Mode Control for Low Voltage Applications
title_full_unstemmed A Boost Regulator with Voltage-Mode Control for Low Voltage Applications
title_sort boost regulator with voltage-mode control for low voltage applications
publishDate 2006
url http://ndltd.ncl.edu.tw/handle/46212388465032996556
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