Circuit Techniques for Device-Circuit Interaction toward Minimum Energy Operation

• Islam A.K.M. Mahfuzul

  Department of Electrical Engineering, Graduate School of Engineering, Kyoto University

• Onodera Hidetoshi

  Department of Communications and Computer Engineering, Graduate School of Informatics, Kyoto University

Abstract

In the quest of operating a circuit at its minimum energy, both of the design-time and run-time optimizations are being employed aggressively in mobile devices today. This paper overviews some of the energy reduction techniques and highlights the role of device-circuit interaction in achieving minimum energy operation. We show that run-time energy minimization can be achieved by keeping the ratio between static energy and dynamic energy to an optimum value. Focusing on the ease-of-design, we then review several delay-based sensor circuits to monitor transistor performance, leakage-current and temperature. We also discuss activity monitors to estimate the dynamic energy. We then discuss a cell-based design approach for both of the sensing and the back-gate voltage tuning circuits for area and cost reduction. Using the sensing and the voltage tuning circuits, the system can operate at its minimum energy all the time.

Journal

• IPSJ Transactions on System LSI Design Methodology

  IPSJ Transactions on System LSI Design Methodology 12 (0), 2-12, 2019

  Information Processing Society of Japan

Keywords

• CMOS
• minimum energy operation
• DVFS
• back-gate biasing
• device-circuit interaction
• on-chip monitor
• on-chip sensor

Details

• CRID: 1390845713054078208
• NII Article ID: 130007603207
• DOI: 10.2197/ipsjtsldm.12.2
• ISSN: 18826687
• HANDLE: 2433/243233
• Web Site: https://www.jstage.jst.go.jp/article/ipsjtsldm/12/0/12_2/_pdf
• Text Lang: en
• Data Source:
  • JaLC
  • IRDB
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed