| Presentation | 2022-08-08 Sub-50-mV Input Boost Converter for Extremely Low-Voltage Thermal Energy Harvesting Hikaru Sebe, Daisuke Kanemoto, Tetsuya Hirose, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | We propose a voltage boost converter for sub-50-mV thermal energy harvesting. The proposed converter consists of charge pumps (CPs), oscillator (OSC), non-olverlap (NOL) clock generator, and multi-stage drivers (DRVs). The OSC and NOL clock generator generate low-voltage clock signals． The DRV accpets the clock signals and generates boosted clock signals for the CPs. In our proposed circuit, the DRV utilizes the output voltages of each CP to efficiently boost the control clock signals. The boosted clock signals are used as switching signals for each CP and DRV to turn % sufficiently switch transistors on and off. Moreover, reset transistors are added to the DRV to ensure an adequate non-overlapping period between switching signals. Simulated results demonstrated that the proposed DRV can generate boosted clock signals of 712.6 mV from input voltage of 100 mV and the multi-stage CP can generate output voltage of 702.5-mV. Peak efficiency of the CP is 42.9%. The proposed CP and DRV can operate at extremely low voltage of 41 mV. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Energy harvesting / Power management circuit / Voltage boost converter / Cold-start circuit / Charge pump / Driver circuit |
| Paper # | SDM2022-39,ICD2022-7 |
| Date of Issue | 2022-08-01 (SDM, ICD) |
| Conference Information | |
| Committee | ICD / SDM / ITE-IST |
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| Conference Date | 2022/8/8(3days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Analog, Mixed Analog and Digital, RF, and Sensor Interface, Low Voltage/Low Power Techniques, Novel Devices/Circuits, and the Applications |
| Chair | Masafumi Takahashi(Kioxia) / Shunichiro Ohmi(Tokyo Inst. of Tech.) / 秋田 純一(金沢大) |
| Vice Chair | Makoto Ikeda(Univ. of Tokyo) / Tatsuya Usami(ASM Japan) / 池辺 将之(北大) / 廣瀬 裕(パナソニック) |
| Secretary | Makoto Ikeda(Shinshu Univ.) / Tatsuya Usami(TSMC) / 池辺 将之(Tohoku Univ.) / 廣瀬 裕(Panasonic) |
| Assistant | Jun Shiomi(Osaka Univ.) / Yoshiaki Yoshihara(キオクシア) / Takeshi Kuboki(Sony Semiconductor Solutions) / Takuji Hosoi(Kwansei Gakuin Univ.) / Takuya Futase(SanDisk) / 山下 雄一郎(TSMC) / 大倉 俊介(立命館大) / 竹本 良章(メムスコア) |
| Paper Information | |
| Registration To | Technical Committee on Integrated Circuits and Devices / Technical Committee on Silicon Device and Materials / Technical Group on Information Sensing Technologies |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Sub-50-mV Input Boost Converter for Extremely Low-Voltage Thermal Energy Harvesting |
| Sub Title (in English) | |
| Keyword(1) | Energy harvesting |
| Keyword(2) | Power management circuit |
| Keyword(3) | Voltage boost converter |
| Keyword(4) | Cold-start circuit |
| Keyword(5) | Charge pump |
| Keyword(6) | Driver circuit |
| 1st Author's Name | Hikaru Sebe |
| 1st Author's Affiliation | Osaka University(Osaka Univ.) |
| 2nd Author's Name | Daisuke Kanemoto |
| 2nd Author's Affiliation | Osaka University(Osaka Univ.) |
| 3rd Author's Name | Tetsuya Hirose |
| 3rd Author's Affiliation | Osaka University(Osaka Univ.) |
| Date | 2022-08-08 |
| Paper # | SDM2022-39,ICD2022-7 |
| Volume (vol) | vol.122 |
| Number (no) | SDM-148,ICD-149 |
| Page | pp.pp.21-26(SDM), pp.21-26(ICD), |
| #Pages | 6 |
| Date of Issue | 2022-08-01 (SDM, ICD) |