• 제목/요약/키워드: Electronic consumption

검색결과 1,134건 처리시간 0.024초

AV 기기를 위한 AC 입력 전류 모니터링 대기 전력 저감 시스템 (Reducing Standby Power Consumption System by Monitoring the AC Input Current for the AV Devices)

  • 이대식;이강현
    • 전기학회논문지
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    • 제65권9호
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    • pp.1493-1496
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    • 2016
  • This paper proposes a system for reducing the standby power consumption in using the consumer electronic devices such as a television, a home theater, a set-top box, or a DVD player. The system is consisted of a flyback converter, monitoring circuits, a relay and a micro-processor. The proposed system can reduce the standby power consumption by disconnecting the AC input and the consumer devices can be turned on with a remote control. The proposed standby power system consumes the low power to receive the infrared signal from the remote controller. Furthermore, a electronic double layer capacitor is used to store the energy with high efficiency. The proposed power system can operate the 플라이백 converter to charge the electronic double layer capacitor and connect the AC input to the consumer electronic devices. The proposed power circuit can reduce the standby power consumption in AV devices without increasing the cost. The prototype is implemented to verify the system with the commercialized products.

Trusted Third Party for Clearing Consumption Tax of Global Electronic Commerce and System Architecture of Global Electronic Tax Invoice (GETI)

  • Yeoul , Hwang-Bo;Jung, Yang-Ook
    • 한국전자거래학회:학술대회논문집
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    • 한국전자거래학회 2003년도 종합학술대회 논문집
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    • pp.261-267
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    • 2003
  • This study deals with controversial issues surrounding the today′s cyber-taxation and recommends feasible consumption tax system architecture titled Global Electronic Tax Invoice System (GETI). The GETI is an electronic consumption tax architecture to provide "all-in-one" tax and e-payment services through a trusted third party (TTP). GETI is designed to streamline the overall cyber-taxation process and provide simplified and transparent tax invoice services through an authorized np. To ensure information security, GETI incorporates public Key infrastructure (PKI) based digital certificates and other data encryption schemes when calculating, reporting, paying, and auditing tax in the electronic commerce environment. GETI is based on the OECD cyber-taxation agreement that was reached in January 2001, which established the taxation model for B2B and B2C electronic commerce transactions. For the value added tax systems, tax invoice is indispensable to commerce activities, since they provide documentations to prove the validity of commercial transactions. As paper-based tax invoice systems are gradually phased out and are replaced with electronic tax invoice systems, there is an increasing need to develop a reliable, efficient, transparent, and secured cyber-taxation architecture. To design such architecture, several desirable system attributes were considered -- reliability, efficiency, transparency, and security. GETI was developed with these system attributes in mind.

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전자가격표시시스템의 소모전력 분석 및 최소화 방안 (Power Consumption Analysis and Minimization of Electronic Shelf Label System)

  • 우리나라;김정준;서대화
    • 대한임베디드공학회논문지
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    • 제9권2호
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    • pp.75-80
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    • 2014
  • Energy consumption of sensor nodes is minimized because it has limited energy generator in wireless sensor network. Electronic shelf label system is one of application fields using wireless sensor networks. Battery size of small apparatus for displaying price is restricted. Therefore its current consumption have to be minimized. Furthermore the method for minimization of peak current would be considered because life cycle of coin battery used to display or RF is vulnerable to intensity of drain current. In this paper, we analyze current consumption pattern of low-power electronic shelf label system. Then we propose the method for minimization of current consumption by modification of software and hardware. Current consumption of the system using proposed method are approximately 15 to 20 percent lower than existing system and the life cycle of the system is approximately 10 percent higher than existing system.

복합시설의 하절기 전력사용량에 따른 발전기 가동현황 분석 (A Study on the Generator Operation by the Electronic Consumption During the Summer in a Complex Building Cluster)

  • 권한솔;공동석;곽노열;허정호
    • 한국태양에너지학회:학술대회논문집
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    • 한국태양에너지학회 2008년도 추계학술발표대회 논문집
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    • pp.126-131
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    • 2008
  • The large buildings in Korea usually use the generators to control the peak load of electronic consumption during the summer. It is necessary that these generators emit carbon dioxide, since they use gas or gasoline for their fuel. This study is to analyze the data of electronic consumption and operation of the generators at COEX, one of the representative complex building clusters in Korea, and to compare to the amount of carbon dioxide emitted per 1kWh from the domestic power plant by analogizing the frequency of using the generator during the summer and the amount of fuel consumption by the capacity of the generator and estimating the amount of carbon dioxide emitted from the generator.

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Cost-effective Power System with an Electronic Double Layer Capacitor for Reducing the Standby Power Consumption of Consumer Electronic Devices

  • Park, Kyung-Hwa;Yi, Kang-Hyun
    • Journal of Power Electronics
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    • 제13권3호
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    • pp.362-368
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    • 2013
  • Commercial home appliances using remotely controlled systems consume electric power while in standby mode to prepare for receiving a remote turn-on signal. The proposed power system can significantly reduce standby power consumption without increasing cost. Furthermore, since a Electronic Double Layer Capacitor (EDLC) is used as an auxiliary power storage element, the life cycle is longer and system reliability can be better than with existing approaches. When the energy of the EDLC is not sufficient for turning on the appliance, the power system charges the EDLC without affecting the main system. The proposed power system is verified with a commercial LCD TV and a 3.93mW standby consumption is obtained. This standby consumption can be regarded as zero standby equipment according to the IEC-62031 standard.

High-voltage and low power consumption driver for an electronic paper

  • Hattori, Reiji;Wakuda, Satoshi;Asakawa, Michihiro;Masuda, Yoshitomo;Nihei, Norio;Yokoo, Akihiko;amada, Shuhei
    • 한국정보디스플레이학회:학술대회논문집
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    • 한국정보디스플레이학회 2006년도 6th International Meeting on Information Display
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    • pp.222-225
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    • 2006
  • A custom-made display driver for an electronic paper is presented, which has high-voltage multilevel output capability and extremely low power consumption. An original level-shifter circuit can effectively reduce the power consumption and the chip area. This driver was implemented to a Quick-Response Liquid Powder Display (QR-LPD) and the image quality and power consumption was estimated.

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FinFET SRAM Cells with Asymmetrical Bitline Access Transistors for Enhanced Read Stability

  • Salahuddin, Shairfe Muhammad;Kursun, Volkan;Jiao, Hailong
    • Transactions on Electrical and Electronic Materials
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    • 제16권6호
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    • pp.293-302
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    • 2015
  • Degraded data stability, weaker write ability, and increased leakage power consumption are the primary concerns in scaled static random-access memory (SRAM) circuits. Two new SRAM cells are proposed in this paper for achieving enhanced read data stability and lower leakage power consumption in memory circuits. The bitline access transistors are asymmetrically gate-underlapped in the proposed SRAM cells. The strengths of the asymmetric bitline access transistors are weakened during read operations and enhanced during write operations, as the direction of current flow is reversed. With the proposed hybrid asymmetric SRAM cells, the read data stability is enhanced by up to 71.6% and leakage power consumption is suppressed up to 15.5%, while displaying similar write voltage margin and maintaining identical silicon area as compared to the conventional memory cells in a 15 nm FinFET technology.

Cautious View on Network Coding - From Theory to Practice

  • Heide, Janus;Pedersen, Morten V.;Fitzek, Frank H.P.;Larsen, Torben
    • Journal of Communications and Networks
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    • 제10권4호
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    • pp.403-411
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    • 2008
  • Energy consumption has been mostly neglected in network coding (NC) research so far. This work investigates several different properties of NC that influence the energy consumption and thus are important when designing NC systems for battery-driven devices. Different approaches to the necessary implementation of coding operations and Galois fields arithmetic are considered and complexity expressions for coding operations are provided. We also benchmark our own mobile phone implementation on a Nokia N95 under different settings. Several NC strategies are described and compared, furthermore expressions for transmission times are developed. It is also shown that the use of NC introduces a trade off between reduction in transmission time and increase in energy consumption.

CMOS Binary Image Sensor Using Double-Tail Comparator with High-Speed and Low-Power Consumption

  • Kwen, Hyeunwoo;Jang, Junyoung;Choi, Pyung;Shin, Jang-Kyoo
    • 센서학회지
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    • 제30권2호
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    • pp.82-87
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    • 2021
  • In this paper, we propose a high-speed, low-power complementary metal-oxide semiconductor (CMOS) binary image sensor featuring a gate/body-tied (GBT) p-channel metal-oxide-semiconductor field-effect transistor (PMOSFET)-type photodetector based on a double-tail comparator. The GBT photodetector forms a structure in which the floating gate (n+ polysilicon) and body of the PMOSFET are tied, and amplifies the photocurrent generated by incident light. The double-tail comparator compares the output signal of a pixel against a reference voltage and returns a binary signal, and it exhibits improved power consumption and processing speed compared with those of a conventional two-stage comparator. The proposed sensor has the advantages of a high signal processing speed and low power consumption. The proposed CMOS binary image sensor was designed and fabricated using a standard 0.18 ㎛ CMOS process.

육류 신선도 판별을 위한 휴대용 전자코 시스템 설계 및 성능 평가 (Design and performance evaluation of portable electronic nose systems for freshness evaluation of meats)

  • 김재곤;조병관
    • 농업과학연구
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    • 제38권3호
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    • pp.525-532
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    • 2011
  • The aim of this study was to develop a portable electronic nose system for freshness measurement of meats, which could be an alterative of subjective measurements of human nose and time-consuming measurements of conventional gas chromatograph methods. The portable electronic system was o optimized by comparing the measurement sensitivity and hardware efficiency, such as power consumption and dimension reduction throughout two stages of the prototypes. The electronic nose systems were constructed using an array of four different metal oxide semiconductor sensors. Two different configurations of sensor array with dimension were designed and compared the performance respectively. The final prototype of the system showed much improved performance on saving power consumption and dimension reduction without decrease of measurement sensitivity of pork freshness. The results show the potential of constructing a portable electronic system for the measurement of meat quality with high sensitivity and energy efficiency.