• 대한전자공학회논문지SD
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• 제41권8호
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• pp.85-92
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• 2004

본 논문에서는 IEEE 1149.1 표준인 JTAG 기반 테스트 성능향상을 위한 Preceding instruction decoding module(PIDM)을 제안하였다. PIDM은 test access port(TAP) 명령어 디코딩과정을 TAP 제어회로(TAP-controller) 이전에 수행하여 클럭회수를 최소화하였으며 테스트 타겟 안에서 test mode select(TMS) 같은 신호를 생성할 수 있게끔 설계되었다. CORDIC 프로세서의 테스트 시뮬레이션 결과 PIDM은 non-PIDM에 비해 15% 정도의 성능향상을 나타내었으며 TAP 제어회로의 게이트 수는 기존에 비해 48% 이상 감소하였다.

• 대한전기학회논문지
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• 제36권5호
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• pp.360-366
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• 1987

The design problem of optimal constant PIDM (proportional-integral-derivative and measurable variable) feedback controller for linear time-invariannt systems is investigated with the time-weighted quadratic performance index. Necessary conditions for an optimality of the controller are derived and an algorithm for computing the optimal feedback gain is presented. It is shown via example that the design mithod using the time-weighted quadratic performance index improves the transient responses of the closed-loop system.

• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 1996년도 추계학술대회 논문집
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• pp.1004-1011
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• 1996

This paper covers the technology developmental stage work for the automatic ammunition loading system mainly focusing on the controller design of the electro-hydranlic type direct drive multi-axis manipulator. Mathematical model of the plant derived and PIDM servo-controller structured. Comparative study between the analytical and experimental work has been carried out to help understand the response property of the direct dine multi-axis robot. In the direct drive robot, non-negligible amount of disturbance and load Induced dynamics variation are transmitted to the drive axis and nonlinearity is highly observed. Thereupon a robust controller Implementing time-delay control law is proposed, and computer simulation confirms the possibility for the time-delay control application against the unpredictable disturbance and load-Induced dynamics variation.