Development of a coilless AC-DC converter for hybrid IC form
| Project/Area Number |
10650388
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
情報通信工学
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| Research Institution | Kumamoto National College of Technology |
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Principal Investigator |
NAKAOKA Toshifumi Kumamoto National College of Technology, Department of Electronics Engineering, Associate Professor, 電子工学科, 助教授 (00044701)
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| Co-Investigator(Kenkyū-buntansha) |
OOTA Ichirou Kumamoto National College of Technology, Department of Information and Communication Engineering, Professor, 情報通信工学科, 教授 (60149995)
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| Project Period (FY) |
1998 – 1999
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| Project Status |
Completed (Fiscal Year 1999)
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| Budget Amount *help |
¥3,500,000 (Direct Cost: ¥3,500,000)
Fiscal Year 1999: ¥1,900,000 (Direct Cost: ¥1,900,000)
Fiscal Year 1998: ¥1,600,000 (Direct Cost: ¥1,600,000)
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| Keywords | IC implementation of power supply / AC-DC converter / Differential type / Switched-capacitor transformer / Small-size and light-weight / AC adopter / Switching power supplies / AC-DCコンバータ |
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| Research Abstract |
In the first research period, an AC-DC converter using two charge-transfer capacitors is realized which can convert a commercial power line (100 V / 60 Hz) into a DC voltage (50 V) with more than 80 % power conversion efficiency. The basic characteristics are obtained and simulated by a computer. In the second research period, the number of the charge-transfer capacitors is increased by 5. The test circuit does not contain any magnetic material and converts the commercial power line (100 V / 60 Hz) into a DC voltage (20 V).
Since the circuit configuration becomes complex, the test circuit is built using a computer-aided manufacturing system (Quick circuit) and the clocks are generated by a timing pulse generator (Time 98) to avoid malfunction by noise. By the experiments the excellent characteristics are obtained. Namely, the test circuit can convert the commercial power line (100 V / 60 Hz) into a DC voltage (20 V / 0.5 A) and the measured maximum power conversion efficiency is 89.5 %. The regulated output voltage is obtained even if the input voltage is changed widely from 20 V to 120 V.
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Report
(3 results)
Research Products
(18 results)
