Design of a Ring-Type SC DC-DC Converter with Bootstrapped Gate Transfer Switches
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概要
- 論文の詳細を見る
In this paper, a ring-type SC DC-DC converter with novel bootstrapped gate transfer switches is proposed. The bootstrapped gate transfer switches are used to achieve higher efficiency. In the proposed bootstrap circuit, maximum voltage of the power converter is charged to a capacitor via maximum circuits constructed with diodes. By connecting the charged-capacitor between the gate terminals of power-switches and the output terminal of the maximum circuit, the bootstrap circuit avoids the threshold voltage drop of power-switches. Concerning the DC-DC converter designed by a 1.2 μm CMOS technology, SPICE simulations are performed to investigate the characteristics of the circuit. The SPICE simulations show that the efficiency of the DC-DC converter with proposed bootstrap circuits is more than 90 % when the output load Ro satisfies Ro > 200 Ω. When Ro = 100 Ω, the proposed circuit can improve efficiency up to 8.7 % of a conventional converter. The validity of the circuit design for the bootstrap circuit is also confirmed by experiments.
- 社団法人 電気学会の論文
- 2003-10-01
著者
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Eguchi Kei
Department of Technology Education, Shizuoka University
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Inoue T
Kumamoto University
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Inoue Takahiro
Kumamoto University
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Inoue T
Faculty Of Engineering Kumamoto University
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Inoue Takahiro
Dep. Of Computer Sci. And Electrical Engineering Graduate School Of Sci. And Technol. Kumamoto Univ.
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Zhu Hongbing
Department Of Computer Science Faculty Of Engineering Hiroshima Kokusai Gakuin University
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EGUCHI Kei
Kumamoto National College of Technology
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TABATA Toru
Kumamoto National College of Technology
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UENO Fumio
Sojo University
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ZHU Hongbing
Hiroshima Kokusai Gakuin University
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OOTA Ichirou
Kumamoto National College of Technology
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Eguchi Kei
Department Of Information And Computer Sciences Kumamoto National College Of Technology
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Eguchi Kei
Department Of Technology Education Shizuoka University
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Eguchi Kei
The Department Of Electrical Engineering And Computer Science Kumamoto University
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Inoue T
Graduate School Of Science And Technology Kumamoto University
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Ueno F
National Coll. Technol. Kumamoto‐ken Jpn
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