Design and Experiments of a Novel Low-Ripple Cockcroft-Walton AC-to-DC Converter for a Coil-Coupled Passive RFID Tag
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概要
- 論文の詳細を見る
A low-ripple diode charge-pump type AC-DC converter based on the Cockcroft-Walton diode multiplier is proposed for coil-coupled passive IC tags in this paper. This circuit is developed as a power supply for passive RFID tags with smart functions such as heart rate detection and/or body temperature measurement. The proposed circuit converts wirelessly induced power to a low-ripple DC voltage suitable for a 13.56 MHz RFID tag. The proposed circuit topology and the principle of operation are explained and treated theoretically by using quasi-equivalent small-signal models. The proposed circuit was implemented on a PCB. And it was confirmed that the proposed circuit provides 3.3 V DC with a ripple of less than 20 mV when a 4 Vp-p sinusoidal input is applied. Under this condition, the maximum output power is about 310 µW. The measured results were in good agreement with theoretical and HSPICE simulation results.
- 電子情報通信学会の論文
- 2008-02-01
著者
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Inoue T
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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YAMAKAWA Toshitaka
Graduate School of Science and Technology, Kumamoto University
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INOUE Takahiro
Graduate School of Science and Technology, Kumamoto University
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TSUNEDA Akio
Graduate School of Science and Technology, Kumamoto University
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Tsuneda Akio
Department Of Computer Science And Electrical Engineering Kumamoto University
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Tsuneda Akio
Graduate School Of Science And Technology Kumamoto University
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Tsuneda Akio
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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Yamakawa Toshitaka
Graduate School Of Science And Technology Kumamoto University
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Inoue Takahiro
Graduate School Of Science And Technology Kumamoto University
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Inoue Takahiro
Graduate School Of Life And Environmental Sciences Kyoto Prefectural University
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INOUE Takahiro
Graduate School of Engineering, Shibaura Institute of Technology
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