Energy Reduction in Shunt-resistor-free Low-voltage Rapid Single-flux-quantum Circuits
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- Tanaka Masamitsu
- Graduate School of Engineering, Nagoya University
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- Sato Ryo
- Graduate School of Engineering, Nagoya University
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- Hatanaka Yuki
- Graduate School of Engineering, Nagoya University
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- Fujimaki Akira
- Graduate School of Engineering, Nagoya University
Bibliographic Information
- Other Title
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- シャント抵抗を排した低電圧駆動単一磁束量子回路の低エネルギー化
- シャント テイコウ オ ハイシタ テイデンアツ クドウ タンイツジソク リョウシ カイロ ノ テイエネルギーカ
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Abstract
<p>We report energy reduction in low-voltage rapid single-flux-quantum (LV-RSFQ) circuits using shunt-resistor-free Josephson junctions. The LV-RSFQ logic is one of energy-efficient derivatives of rapid single-flux-quantum (RSFQ) logic, which operates in a constant voltage mode. By lowering bias voltages, we can reduce power consumption at bias resistors which account for more than 90% of total power consumption, and also reduce the energy dynamically consumed during switching events because of slower transition of superconductor phase. Voltage drops across Josephson junctions cause a complicated trade-off between operation speed and power consumption. In this paper, we evaluated shunt-resistor-free LV-RSFQ shift-registers in terms of operation speed, power consumption, and energy-efficiency. Numerical simulation revealed their faster operation by up to 50% and accordingly higher energy-efficiency. Experimental results showed that a 0.5mV shift-register had superiority in operation speed and energy-efficiency.</p>
Journal
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- IEEJ Transactions on Fundamentals and Materials
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IEEJ Transactions on Fundamentals and Materials 136 (12), 740-746, 2016
The Institute of Electrical Engineers of Japan
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Keywords
Details 詳細情報について
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- CRID
- 1390001204597833344
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- NII Article ID
- 130005171375
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- NII Book ID
- AN10136312
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- ISSN
- 13475533
- 03854205
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- NDL BIB ID
- 027784014
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
- KAKEN
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- Abstract License Flag
- Disallowed