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Power electronic devices

Xem 1-20 trên 82 kết quả Power electronic devices
  • This study presents a design procedure to obtain high-efficiency for microwave power amplifier. The designed amplifier uses a GaN high electron mobility transistor as an active device. Matching networks including input and output networks are realized using Megtron6 substrate microstrip lines. The designed amplifier operates at 2.1 GHz band.

    pdf5p vimelindagates 18-07-2022 3 1   Download

  • This study aims to develop a novel water-cooled device that increases heat transfer performance while inhibiting the increase of pumping power for next-generation electronic equipment. Our previous reports have reported that the combination of the pulsating flow, which is the unsteady flow that the supply flow rate is periodically changed likes a blood in the body of human beings, and the rib has higher cooling efficiency.

    pdf4p viwilliamleiding 10-12-2021 9 0   Download

  • Electronic cigarettes/e-cigarettes (ECs), or vaping, is currently the most popular form of smoking amongst youth in the United States. ECs are battery-powered devices that vaporize a liquid that comes in small cartridges, or pods, that contain various chemicals, nicotine, and an array of flavors that can be modified to include cannabinoids (THC).

    pdf6p vimaine2711 26-03-2021 6 1   Download

  • We present a performance enhancement evaluation of n þ doped graded InGaN drain/source regionbased HfO2/InAlN/AlN/GaN/AlN on SiC metal-oxide-semiconductor high electron mobility transistor (MOS-HEMTs) with a T-shaped gate. Impact on the device characteristics with the inclusion of a HfO2 surface passivation layer and an AlN buffer layer in the MOS-HEMT structure as a performance booster has been analyzed for the HEMT device with 30 nm gate length using Silvaco ATLAS TCAD.

    pdf7p larachdumlanat129 14-01-2021 12 0   Download

  • In this chapter, you will learn about: Rectifiers: half-wave rectifiers, full-wave rectifiers; the basic power supply; diode limiting (clipping) and clamping circuits; switching diodes.

    ppt48p larachdumlanat126 31-12-2020 6 0   Download

  • In this work, we propose a novel enhancement-mode GaN metal-oxide-semiconductor high electron mobility transistor (MOS-HEMT) with a 10 nm T-gate length and a high-k TiO2 gate dielectric. The DC and RF characteristics of the proposed GaN MOS-HEMT structure are analyzed by using a TCAD Software.

    pdf8p tamynhan4 06-09-2020 2 0   Download

  • Induction machines are widely used in many industries due to their robustness, ruggedness and easy maintenance feature. Due to the addition of power electronics devices and the complexity involved in the design of induction machines, their study and analysis can be very difficult.

    pdf13p lucastanguyen 01-06-2020 10 1   Download

  • This paper provides a literature review on smart grids and big data. Smart grid refers to technologies used to modernize the energy delivery of traditional power grids, using intelligent devices and big data technologies.

    pdf12p vivalletta2711 11-01-2020 22 3   Download

  • In order to optimize the electric energy quality of HVDC access point, a modular multilevel selective harmonic elimination pulse-width modulation (MSHE-PWM) method is proposed. On the basis of keeping the minimum action frequency of the power device, MSHE-PWM method can meet the requirement for accurately eliminating low-order harmonics in the output PWM waveform.

    pdf7p vivalletta2711 11-01-2020 9 0   Download

  • Aiming to compare the cooling effect, two types of solar-powered semiconductor air-conditioning devices were designed in different structures. According to the cooling load in an experimental room, the solar panels and battery capacity were determined for the development of a test system.

    pdf6p vivalletta2711 11-01-2020 16 0   Download

  • A seed metering mechanism of conventional precision planters are usually driven by ground wheel with chain and sprocket system and these mechanisms are of mechanical type. They are less efficient as there is a number of losses while transmitting the power. Due to continuous friction between moving parts, these devices are subjected to wear and tear; hence they require frequent maintenance. To improve the planting performance of precision planters, the best substitute is to develop an electronic meterized planter for maize.

    pdf9p quenchua2 15-12-2019 10 1   Download

  • Single electron transistor (SET) is a key element in current research area of nanoelectronics and nanotechnology which can offer nano-feature size, low power consumption and high operating speed. SET is a new nanoscale switching device. It can control the motion of the single electron. The goal of this paper is to discuss about some physical properties of the SET and focuses on simulation of basic quantum device characteristics such as tunneling effect, Coulomb blockage, Quantum dot, Coulomb staircase, and Coulomb oscillation.

    pdf8p gildur 30-11-2019 26 0   Download

  • (bq) part 2 book "electronic devices and circuit theory" has contents: bjt and jfet frequency response, linear digital ics, sinusoidal alternating waveforms, operational amplifiers, op-amp applications, power amplifiers, power supplies, oscilloscope and other measuring instruments,...and other contents.

    pdf440p bautroibinhyen21 14-03-2017 65 7   Download

  • Chương này gồm có những nội dung chính sau: Diodes, bipolar junction transistor (BJT), metal oxide semiconductor effect transistor (MOSFET), insulated gate bipolar transistor (IGBT), thyristor, gate turn of thyrisor (GTO), triode alternative current (TRIAC). Mời tham khảo.

    pdf19p tangtuy19 21-07-2016 62 13   Download

  • Offering step-by-step, in-depth coverage, the new Third Edition of Power Electronics: Converters, Applications, and Design provides a cohesive presentation of power electronics fundamentals for applications and design in the power range of 500 kW or less. The text describes a variety of practical and emerging power electronic converters made feasible by the new generation of power semiconductor devices. The new edition is now enhanced with a new CD-ROM, complete with PSpice-based examples, a new magnetics design program, and PowerPoint slides.

    pdf820p ducxt1995 25-08-2015 123 26   Download

  • Power Electronics and Motor Drives including content: introduction and Perspective, power Semiconductor Devices, phase-Controlled Converters and Cycloconverters, voltage-Fed Converters and PWM Techniques, current-Fed Converters, electrical Machines for Variable-Speed Drives, induction Motor Drives, synchronous Motor Drives, computer Simulation and Digital Control.

    pdf935p minhminhminh32 30-03-2014 287 31   Download

  • Picture this... you walk into a room and the ambience instantly adapts to your personal preferences—the lighting dims, jazz music begins to play, and pictures of your favorite beach are projected onto the walls. You set your smartphone down on the desk, and all your information (files, pictures, songs, movies, etc.) are at your fingertips; no more laptop bags, flash drives, or papers—everything is just there.

    pdf8p docvachiase 03-05-2013 56 3   Download

  • This research was conducted in support of two branches of the EPA ENERGY STAR program, whose overall goal is to reduce, through voluntary market-based means, the amount of carbon dioxide emitted in the U.S. The primary objective was to collect data for the ENERGY STAR Office Equipment program on the after- hours power state of computers, monitors, printers, copiers, scanners, fax machines, and multi-function devices. We also collected data for the ENERGY STAR Commercial Buildings branch on the types and amounts...

    pdf108p dacotaikhoan 25-04-2013 59 1   Download

  • Power quality is an important measure of fitness of electricity networks. With increasing renewable energy generations and usage of power electronics converters, it is important to investigate how these developments will have an impact to existing and future electricity networks. This book hence provides readers with an update of power quality issues in all sections of the network, namely, generation, transmission, distribution and end user, and discusses some practical solutions.

    pdf158p haiduong_1 15-04-2013 71 7   Download

  • The proliferation of low-power and ultralow-power electronics has enabled a rapid growth of autonomous devices that ranges from consumer electronics and nomad devices to autonomous sensors and sensor networks used in industrial and military environments. Hence, a wide range of application domains has been impacted by such technologies (aeronautic, civil engineering,biomedical engineering, home automation, etc.).

    pdf356p namde01 11-04-2013 56 6   Download



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