• Proceedings of the KIPE Conference
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• 2014.07a
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• pp.425-426
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• 2014

본 논문은 전기자전거용 충전 기능이 내장된 양방향 부스트 컨버터 기반의 DC 모터 구동 회로를 제안한다. 추가 전력 단 구현 없이 배터리 충전 기능을 내장한 양방향 부스트 컨버터 기반의 DC 모터 구동회로로써 회로 부피 및 원가 저감이 가능하고 회생충전모터의 작동을 통해 자가발전을 유도함과 동시에 안정적인 브레이크 기능 유도가 가능하다. 제안한 회로의 이론적 분석을 행하고, 모의실험을 통하여 타당성을 검증하였다.

• LP가스
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• s.78
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• pp.6-7
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• 2002

행정자치부가 주유소내 충전소병설을 허용하는 내용으로 소방기술기준에 관한 규칙을 개정하려는 것과 관련, 우리회는 행자부와 청와대.규제개혁위원회.법제처 등에 동 조항의 삭제를 건의했다.

• LP가스
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• s.97
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• pp.66-68
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• 2005

산업자원부와 한국가스안전공사가 주최하는 가스인의축제 “제12회 가스안전촉진대회”가 6월 22일 서울밀레니엄 힐튼호텔에서 개최되었다. 이번 행사에서 충전사업분야 유공자로 선정된 수상자의 공적내용을 게재한다.

• Journal of the Institute of Electronics and Information Engineers
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• v.50 no.1
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• pp.205-214
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• 2013

In this paper, we analyzed the various EV charging-infra information(charging status, charging pattern, charging rate, charging fee, etc.) through the charging infra simulator which would be of help to effectively construct the EV charging infrastructure. The proposed simulator virtually made the EV motoring pattern referred to TMS(Traffic Monitoring System) & Ministry of Land, Transport and Maritime Affairs, and analyzed the charging-infra information(amount of charging, accumulated charging fee, etc.) based on vehicle types, charging type, time and days using EV charging-fee list noticed by KEPCO. Through this simulator, we deducted some considerable contents to build the EV charging infrastructure similarly with real environment.

• The Journal of the Korea institute of electronic communication sciences
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• v.18 no.5
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• pp.769-776
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• 2023

In this paper, we designed an MLSA(Match-line Sense Amplifier) for low-power CAM(Content Addressable Memory). By using the MLSA and precharge controller, we reduced power consumption during CAM operation by employing a selective match-line charging technique to mitigate power consumption caused by mismatch. Additionally, we further reduced power consumption due to leakage current by terminating precharge early when a mismatch occurs during the search operation. The designed circuit exhibited superior performance compared to the existing circuits, with a reduction of 6.92% and 23.30% in power consumption and propagation delay time, respectively. Moreover, it demonstrated a significant decrease of 29.92% and 52.31% in product-delay-product (PDP) and energy-delay-product (EDP). The proposed circuit was validated using SPECTRE simulation with TSMC 65nm CMOS process.

• The Journal of the Korea institute of electronic communication sciences
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• v.15 no.3
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• pp.495-502
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• 2020

In this paper, a power management circuit was designed to drive the emergency lighting LED in the underground facility for public utilities using magnetic energy harvest. The magnetic energy harvest consists of a harvest elements and power management circuits. The proposed circuit was made of a rectifier, a battery charging circuit, and an LED driving circuit. In normal times, the battery is charged with the harvested power, and in the event of an emergency, the energy stored in the battery is used to drive the LED. As a result of the measurement, it took two minutes to charge the 47 mF capacitor. This is the amount of power that can drive an LED for emergency lighting for about three and a half minutes. Through this, it was confirmed that the power management circuit for magnetic energy harvest proposed in this paper can be used as an emergency lighting LED-driven power device in an underground facility for public utilities where it is difficult to draw separate power.

• The Journal of the Korea institute of electronic communication sciences
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• v.16 no.2
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• pp.255-260
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• 2021

The importance of electric vehicles is gradually increasing due to the recent depletion of fossil fuels. In order to use an electric vehicle, the battery built into the vehicle must be frequently charged. Electric vehicles has very good performance in terms of noise and vibration. However, due to the limitations of the battery, the mileage is considerably shorter than that of an internal combustion engine vehicle once it is charged, and the battery charging time is relatively long compared to the refueling time. There are two types of charging methods for electric vehicle batteries: plug-in and wireless charging. In this paper, we introduced the wireless charging technology for electric vehicles and the current state of technology development and standards in major countries.

• Proceedings of the IEEK Conference
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• 2008.06a
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• pp.523-524
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• 2008

Proposed battery charger is a economic candidate because that is simple and small size. The circuit has linearly operational power stage. That use small size buffer with small driving current and large power MOS gate capacitance. The simulation result show that charging current is stable and has low ripple.

• Proceedings of the KIPE Conference
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• 2020.08a
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• pp.367-368
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• 2020

미래 도시 교통 체계에 큰 변화를 줄 수 있는 매체로 스마트 모빌리티가 주목 받고 있다. 스마트 모빌리티 운용을 위해서는 효율적인 충전 시스템을 필요로 한다. 본 논문에서는 비절연형 단상 계통 연계형 태양광 발전 시스템에서의 스마트 모빌리티 충전 시스템 설계를 소개한다. 설계한 시스템의 회로 및 제어기 구성법은 Matlab/Simulink 시뮬레이션을 이용하여 해당 컨버터 및 인버터와 제어기 구성의 타당성을 보여준다.

• LP가스
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• s.81
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• pp.4-5
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• 2002

한국 LP가스공업협회-최근 우리회는 2002. 7. 17자로 정부에서 발표한 "외국인력제도 개선방안"과 관련, LPG충전업계의 경우 정부에서 외국인취업을 허용한 중소제조엄.서비스업 등보다 국내 인력을 확보하기가 어려운 실정이므로 충전업계에서도 외국인을 활용할 수 있게 해달라고 산업자원부에 건의했다.