• 대한전기학회:학술대회논문집
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• 대한전기학회 2006년도 심포지엄 논문집 정보 및 제어부문
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• pp.330-332
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• 2006

A short distance laser range detector was developed on digital circuit. The circuit changed the analog circuit to digital circuit as possible as. The currently available laser range circuit one uses analog circuit mainly. But this ranger design targeted mass production with digital reporting function. So digital circuits replaced the analog circuit except amplifier and remained minor circuits those are hard to replace with digital circuit. The simulation shows that it is possible to make a reasonable distance measuring circuit on a digital circuit for very low price compare to analog circuit one.

• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 2003년도 ICCAS
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• pp.970-973
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• 2003

Abstract An idea to redce the direct-path short circuit current of the CMOS digital integrated circuit is present. The sample circuit model of the CMOS digital circuit is the CMOS current-control digital output driver circuit, which are also suitable for the low voltage supply integrated circuits as the simple digital inverter, are present in this title. The circuit consists of active MOS load as the current control source, which construct from the saturated n-channel and p-channel MOSFET and the general CMOS inverter circuits. The saturated MOSFET bias can control the output current and the frequency response of the circuit. The experimental results show that lower short circuit current control can make the lower frequency response of the circuit.

• 실천공학교육논문지
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• 제9권1호
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• pp.41-48
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• 2017

본 논문에서는 기초 디지털 논리 회로 실습 교육 과정을 설계하기 위해, 디지털 출력을 갖는 아두이노 프로그래밍을 통한 디지털 논리회로 제어 방법을 제안하였다. 디지털 논리회로와 아두이노 프로그래밍 실습은 국내 교육과정의 고등학교 및 대학교의 공학 계열 학과에서 필수 교육과정으로 지정하고 있다. 하지만 실제 실습에는 디지털 논리회로와 아두이노 프로그래밍이 결합된 예제가 부족하고, 디지털 논리회로를 설계하고 오실로스코프 보다 저가의 비용으로 실험할 수 있는 교육 과정이 부족하다. 이에 본 논문에서는 이 문제를 해결하는 디지털 출력 명령을 통한 아두이노 프로그래밍을 통해, 디지털 논리회로를 제어하고 실습해보는 한 학기 기간의 기초 디지털 논리 회로 실습 교육 과정을 제안하였다.

• 한국정보디스플레이학회:학술대회논문집
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• 한국정보디스플레이학회 2008년도 International Meeting on Information Display
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• pp.1551-1554
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• 2008

In this paper, some important driving issues pertaining to the sustain-driving circuit are examined A new driving circuit is also proposed The new circuit is cost effective and has a simple PCB layout in comparison to the conventional one. Some additional driving advantages are noted as well.

• 정보교육학회논문지
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• 제13권3호
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• pp.341-349
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• 2009

본 논문에서는 정보 과학교육에서 디지털 시스템의 동작 원리를 이해하는데 기초가 되는 디지털 논리 회로에 대한 내용을 쉽게 이해할 수 있도록, 전기회로 실험 조작 활동을 통한 논리회로 결과 검증 방법을 제안하였다. 그리고 제안한 검증방법을 활용하고 실생활 디지털 기기 예제를 통해 PBL 기법에 기반한 논리회로의 개념교육 방법 및 부울 논리 교육 방법을 제안하고 실제 수업에 적용한 결과를 난이도 할당의 적절성 및 학생들의 문제해결력 측면에서 분석하였다.

• 한국초전도ㆍ저온공학회논문지
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• 제4권1호
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• pp.8-12
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• 2002

Since the high performance analog-to-digital converter can be built with Rapid Single Flux Quantum (RSFQ) logic circuits the development of superconductive analog-to-digital converter has attracted a lot of interests as one of the most prospective area of the application of Josephson Junction technology. One of the main advantages in using Rapid Sng1e Flux Quantum logic in the analog-to-digital converter is the low voltage output from the Josephson junction switching, and hence the high resolution. To design an analog-digital converter, first we have used XIC tool to compose a circuit schematic, and then studied the operational principle of the circuit with WRSPICE tool. Through this process, we obtained the proper circuit diagram of an 1-bit analog-digital converter circuit. The optimized circuit was laid out as a mask drawing. Inductance values of the circuit layout were calculated with L-meter.

• 한국초전도저온공학회:학술대회논문집
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• 한국초전도저온공학회 2002년도 학술대회 논문집
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• pp.131-134
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• 2002

In this work, we have developed a systematic way of utilizing the basic design tools for superconductive electronics. This include WRSPICE, XIC, margin program, and L-meter. Since the high performance analog-to- digital converter can be built with Rapid Single Flux Quantum (RSFQ) logic circuits the development of superconductive analog-to-digital converter has attracted a lot of interests as one of the most prospective area of the application of Josephson Junction technology. One of the main advantages in using Rapid Single Flux Quantum logic in the analog-to-digital converter is the low voltage output from the Josephson junction switching, and hence the high resolution. To design an 1-bit analog-digital converter, first we have used XIC tool to compose a circuit schematic, and then studied the operational principle of the circuit with WRSPICE tool. Through this process, we obtained the proper circuit diagram of an 1-bit analog-digital converter circuit. Based on this circuit we performed margin calculations of the designed circuits and optimized circuit parameters. The optimized circuit was laid out as a mask drawing. Inductance values of the circuit layout were calculated with L-meter. Circuit inductors were adjusted according to these calculations and the final layout was obtained.

• Journal of Information Display
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• 제9권4호
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• pp.45-49
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• 2008

The characteristics of the sustain-driving circuit were examined in this paper. The sustain-driving circuit is in charge of the most important part of PDP driving because it manages most of the power consumption in the PDP. A couple of gatedriving circuits for the sustain-driving circuit were introduced in this paper, and a new driving circuit was also proposed. This new circuit is more cost-effective and has a simpler PCB layout compared to the conventional one. Some additional driving advantages were noted as well.

• Journal of Information Display
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• 제7권4호
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• pp.24-26
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• 2006

We have developed a new driving method named TROPHY(Talented Role-playing Technology with Dual Polarity sustainer in Hybrid Mono board). In this method, the sustain voltage is partially compared to the conventional method and the number of power sources is reduced by voltage level unification during the reset, address and sustain period. The hybrid mono board was especially developed to implement those technologies. Through this, we can lower the cost with the TROPHY compared to the conventional one. It is a suitable technology to improve the reliability of circuit and image sticking problem. We can also reduce the number of driving boards and the EMI problem compared with those of the conventional method.

• 한국정보디스플레이학회:학술대회논문집
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• 한국정보디스플레이학회 2006년도 6th International Meeting on Information Display
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• pp.246-249
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• 2006

We have developed a new driving method named TROPHY(Talented Role-playing Technology with Dual Polarity sustainer in Hybrid Mono board). In this method, the sustain voltage is halved compared to the conventional method and the number of power sources is reduced by voltage level unification during the reset, address and sustain period. The hybrid mono board was especially developed to implement those technologies. Therefore, we can lower the cost with the TROPHY compared to the conventional one. It is suitable technology to improve the reliability of circuit and image sticking problem. We can also reduce the number of driving boards and the EMI problem comparing to those of the conventional method.