전기학회논문지 (The Transactions of The Korean Institute of Electrical Engineers)

  • 제57권8호
  • /
  • Pages.1440-1446
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  • 2008
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  • 1975-8359(pISSN)
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  • 2287-4364(eISSN)
대한전기학회 (The Korean Institute of Electrical Engineers)
권호 표지

비동기 상태 피드백 제어를 이용한 TMR 메모리 SEU 극복

Asynchronous State Feedback Control for SEU Mitigation of TMR Memory

  • 발행 : 2008.08.01
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초록

In this paper, a novel TMR (Triple Modular Redundancy) memory structure is proposed using state feedback control of asynchronous sequential machines. The main ability of the proposed structure is to correct the fault of SEU (Single Event Upset) asynchronously without resorting to the global synchronous clock. A state-feedback controller is combined with the TMR realized as a closed-loop asynchronous machine and corrective behavior is operated whenever an unauthorized state transition is observed so as to recover the failed state of the asynchronous machine to the original one. As a case study, an asynchronous machine modelling of TMR and the detailed procedure of controller construction are presented. A simulation results using VHDL shows the validity of the proposed scheme.

키워드

참고문헌

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