High Electron Mobility Transistor의 구조와 동작 원리

박광민 순천향대학교 1988 논문집 Vol.11 No.2

In this paper, the structure and the operational principle of the High Electron Mobility Transistor(HEMT) known to be the superfast transistor are precisely analyzed. The structure of HEMT's is basically constituted with the AlGaAs/GaAs heterojunction. Thus, the fabrication method of this heterostructure is inspected and the contribution of each layer to HEMT's operation is presented. The analyzed HEMT's structure and the presented operational principle would be a theoretical basement in developing simulation models for characterisitics of HEMT's.

통신시스템을 위한 CMOS class-AB 전력증폭기의 설계에 관한 연구

박광민 순천향대학교 부설 산업기술연구소 1996 순천향 산업기술연구소논문집 Vol.2 No.2

In this paper, an efficient CMOS class-AB power amplifier for telecommunication systems is designed. Applying the new cascoded compensation technique with optimized circuit parameters, this amplifier is stable for any capacitive load. For it, the mathmatical analysis for the stability of this amplifier for various capacitive loads and an approach for controlling the worst case phase margin are presented. Using the 0.8㎛ CMOS design rule, simulation results show the open-loop gain of 80dB and the unity gain frequency of 100MHz.

고주파 및 마이크로파 RFID 시스템에 사용하기 위한 CMOS 브리지 정류기의 설계

박광민 순천향대학교 부설 산업기술연구소 2004 순천향 산업기술연구소논문집 Vol.10 No.2

In this paper, a CMOS bridge rectifier for HF and microwave RFID systems is presented. The proposed RFID CMOS bridge rectifier is composed with two NMOSs and two PMOSs whose gates are all commonly connected to the antenna. The simulation results obtained with SPICE show the well rectified and high enough DC output voltages for frequencies of 13.56㎒, 915㎒, and 2.45㎓ which are used in various RFID systems. The obtained DC output voltages are sufficient for driving the microchip in RFID Transponders.

서울시 중구 청소년지도사업 연구

朴光民,吳治善 明知大學校 學生生活硏究所 2003 學生指導 Vol.15 No.-

Electronic Probe와 Manual Probe에 의한 치은 열구 및 치주낭 측정의 재현성에 관한 비교연구

박광민,이재현 단국대학교 치의학연구소 1990 논문집 Vol.2 No.-

The purpose of this study was to compare reproducibility of double pockety depth measurements using electronic probe and manual probe. 11 human subjects with adult periodontitis were selected for the study. Two examiners measured 213 selected interproximal pockets using electronic probe and manual probe in twice at interval of one week after completion of preliminary treatment. The result were as follow; 1. In both examiners, except second measurements of examiner B, the mean of pocket depth measurements using manual probe was significantly higher than that using electronic probe (p<0.05). 2. The proportions of intra-examiner agreement for pocket depth measurements using electonic probe was significantly higher than that using manual probe in both examiners (p<0.01). 3. The proportions of inter-examiner agreement for pocket depth measurements using electronic probe was significantly higher than that using manual probe (p<0.05). 4. The proportions of intra-examiner agreement for pocket depth measurements using electonic probe and manual probe was significantly higher than that of inter-examiner agreement for pocket depth measurement in both examiners (p<0.05).

어떠한 저항성 부하에도 효율적인 CMOS Class-AB Op-Amp의 설계

박광민 순천향대학교 부설 산업기술연구소 1998 순천향 산업기술연구소논문집 Vol.3 No.3

In this paper, an efficient CMOS class-AB op-amp for any resistance loads is presented. Its output stage comprises an elementary shunt stage driven by a transconductor block and performs a class AB operation with 1.5V supply voltages. Simulation results show the efficient and high performance characteristics for these low supply voltages. At 1.5V, the designed op-amp demonstrates a dc open-loop gain of 64dB or 80dB and a phase margin of 66°or 60°for 1㎘ ∥ 150pF or 1MΩ∥ 150pF loads, respectively. Therefore, it may be used as the general-purpose amplifiers for any resistance loads and adapted to the functional block for various analog systems.

브랜드 가치에 따른 음식점 인증에 대한 인증 신념과 대체재가 고객신뢰에 미치는 영향

박광민 한국외식산업학회 2019 한국외식산업학회지 Vol.15 No.3

Restaurant certifications have been used for appropriate information to customers. Certification plays a role of balancing information asymmetry between customers and restaurant owners. Especially, policy makers expected the effect of certification is better in small and low brand equity restaurants. However, its influence has not been paid much attention by researchers. Further, recently there is a rapid growth of various certifications in Korea. Most of them were not hygiene certification and its effectiveness is not clearly answered. This study developed customer attitude toward restaurant certification and investigated the influence of certification to customer trust. We found that the attitude toward certification was consisted of two factors: certification belief and certification substitute. This study found that customers are more depending on information from bran equity. The positive effect of certification belief is significantly lower in low brand equity restaurants. On the other hand, customers used their heuristic such as looking up restaurant and kitchen only when they are dinging at low brand equity restaurants. This certification substitute was not significant in high brand equity restaurant. Consequently, restaurant certification is not working well as much as what we expected.

공정거래법상 전속고발권의 존폐론 검토

박광민,이성대 한국비교형사법학회 2013 비교형사법연구 Vol.15 No.2

The Monopoly Regulation and Fair Trade Act gave Fair Trade Commission exclusive complaint right that was on dispute so far since introduction in 1981. On June 25, 2013, the National Assembly revised the law to expand request of the complaint on illegal cartel in accordance with the law that was on dispute so far. This was because the revision of the law was difficult to accept abolishment of exclusive complaint right from point of view of whole value of the revision. The dispute on exclusive complaint system was largely originated from not only difference of position of parties interested but also conflict of interests that was recurred at discussion of scholars on the system. In other words, dispute on the exclusive complaint system was ongoing. More than 30 years after the Fair Trade Act introduced the system, abolition of the system should be carefully reexamined. This study investigated to reexamine abolition of the exclusive complaint right in accordance with the Fair Trade Act: 1) values and functions of the exclusive complaint system, 2) current state of exclusive complaint right and legislation of each country, 3) situation and problems of discussion on abolition of exclusive complaint right in accordance with the Fair Trade Act. The study suggested legal reformation for abolishment of exclusive complaint system to reach a conclusion:The exclusive complaint system of the law was introduced to let enterprise and other economic entities get national and/or administrative influence in the era of state-dominated economic development. But, the system prevented competition order and sound development of national economy under current economic system so that it should be abolished. The revision of the law that criminal punishment of the law was under control of the Administration was on dispute. Therefore, exclusive complaint right of the law should be abolished: In other words, American system of antitrust dual enforcement should be introduced subject to classification and assessment of various kinds of regulatory behaviors under the law.

정당방위의 정당화 원리

朴光旼 서원대학교 사회과학연구소 1994 사회과학연구 Vol.7 No.-

RF 통신용 IC 설계를 위한 MOSFET의 소신호 모델

박광민,김은성 순천향대학교 부설 산업기술연구소 2003 순천향 산업기술연구소논문집 Vol.9 No.1

In this paper, a MOSFET small-signal model for RF communication IC design is proposed. For accurately predicting the RF behavior of MOSFET's, the RF equivalent circuit model including the capacitance effect, the skin effect, and the proximity effect between metal lines on the Si surface is developed. The simulation results with SPICE are compared to the BSIM 3v3, other models, and the measured data for verifying the accuracy of the proposed model. The proposed small-signal model shows better agreements with the measured data than the BSIM 3v3 and other models, and shows well the frequency dependent behavior and the bias dependence of y-parameters of MOSFET's in GHz ranges