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11th Symposium on Semiconductor Process Integration - 236th ECS Meeting

作者： Shimawaki, H. Mimura, H. Murakami, K. Nagao, M. Department of System and Information Engineering Hachinohe Institute of Technology Hachinohe Aomori031-8501 Japan Research Institute of Electronics Shizuoka University Hamamatsu Japan National Institute of Advanced Industrial Science and Technology Tsukuba Japan

ISBN: (纸本)9781607688785

The electron emission properties of planar-type electron emission devices based on oxidized nanocrystalline silicon (nc-Si) were investigated to improve the performance. The emission current and the emission efficiency are higher for the thinner gate electrode, and the emission efficiency was enhanced to 4 % by reducing the topmost electrode thickness. The emission current was enhanced by about two orders of magnitude by laser irradiation. In addition, we demonstrated laser pulse-induced, optically-modulated electron emission from the nc-Si based device. © The Electrochemical Society.

关键词： Nanocrystalline silicon

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High speed standard cell using bootstrapped technology for LTPS TFT

High speed standard cell using bootstrapped technology for L...

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ISCIT 2007 - 2007 International Symposium on Communications and information Technologies

作者： Sato, Takafumi Mizushima, Shigeaki Imai, Shigeki Suzuki, Yasoji Murata, Shinichi Course of Electrical and Electronics System TOKAI University 1117 Kita-Kaname Hiratsuka-City Kanagawa-Pref. 259-1292 Japan Display Technology Development Group SHARP Corporation Systems Engineering Laboratories Display Technology Development Group SHARP Corporation Department of Information Telecommunication and Electronics TOKAI University Engineering Support Center TOKAI University

ISBN: (纸本)1424409772

In this paper, a synchronous high-speed logic standard cells using bootstrapped technology for low temperature poly silicon thin film transistor - liquid crystal display (LTPS TFT-LCD) panel is proposed. The proposed TFT standard cells operate at high frequency region owing to the deep non-saturation operation by using the bootstrapped technology (BST). The proposed TFT standard cells can be reduced the pattern size by using the TFT capacitors for the bootstrapped capacitors. To confirm some characteristics of the proposed TFT standard cells, a full adder (FA) are simulated. As a result, the power delay products obtain about 1/5-9/10 times less value than that of the conventional standard cells using LTPS TFT. © 2007 IEEE.

关键词： Temperature

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A Two-Stage Interleaved Bridgeless SEPIC based PFC Converter for Electric Vehicle Charging Application 9

A Two-Stage Interleaved Bridgeless SEPIC based PFC Converter...

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9th IEEE International Conference on Communications and electronics, ICCE 2022

作者： Luckose, Vinukumar Kannan, Ramani Hasan, Khairul Nisak Md Ibrahim, Taib B SEGi University Center for Advanced Electrical and Electronic System Faculty of Engineering Built Environment and Information Technology Petaling Jaya Malaysia Universiti Teknologi Petronas Power Control and Instrumetnation Cluster Department of Electrical and Electronics Engineering Perak Seri Iskandar Malaysia

ISBN: (数字)9781665497459

ISBN: (纸本)9781665497442

Electric vehicles are become more popular nowadays due to negligible gas emissions and less dependent on fossil fuel. However, the battery charging process is the main challenge that influences the electric vehicle (EV) transportation system. The power factor correction (PFC) and dc-dc converter stages are the main phases in the EV charging system. Various electric vehicle charging technologies are developed using different power electronics converter topologies, such as cuck, Zeta, SEPIC, and buck-boost converter. SEPIC (Single Ended Primary Inductor Converter) converter topology is the most preferred topology for battery charging applications due to providing non-inverting output with buck boost operation and reduced input and output ripple current. Although the SEPIC convertor topology has many advantages still possess a lot of challenges. The main challenges are reducing the converter size, conduction loss, voltage stress and increasing the efficiency when compared with the existing recent developed Bridgeless SEPIC topologies with interleaved concept. In this proposed research, a modified interleaved bridgeless, SEPIC based converter is proposed to improve the Power Quality (PQ) for vehicle charging station. The proposed topology is able to reduce the voltage stress, power loss, increase the converter efficiency and improve the power factor due to the bridgeless with interleaved configuration compared to other topologies. The preliminary design of the of the bridgeless interleaved topology is developed with the help of MATLAB Simulink software. The various preliminary results were obtained at the input supply voltage of 70-230 V ac supply. © 2022 IEEE.

关键词： Topology

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MmWave extra-large-scale MIMO based active user detection and channel estimation for high-speed railway communications

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High-Speed Railway 2023年第1期1卷 31-36页

作者： Anwen Liao Ruiqi Wang Yikun Mei Ziwei Wan Shicong Liu Zhen Gao Hua Wang Hao Yin Nanjing Research Institute of Electronics Technology Nanjing 210039China School of Information and Electronics Beijing Institute of TechnologyBeijing 100081China Advanced Research Insttute of Multidisciplinary Science Beijing Institute of TechnologyBeijing 100081China Insttute of China Electronic System Engineering Corporation Beijing 100141China

The current High-Speed Railway(HSR)communications increasingly fail to satisfy the massive access services of numerous user equipment brought by the increasing number of people traveling by *** this end,this paper investigates millimeter-Wave(mmWave)extra-large scale(XL)-MIMO-based massive Internet-of-Things(loT)access in near-field HSR communications,and proposes a block simultaneous orthogonal matching pursuit(B-SOMP)-based Active User Detection(AUD)and Channel Estimation(CE)scheme by exploiting the spatial block sparsity of the XLMIMO-based massive access ***,we first model the uplink mmWave XL-MIMO channels,which exhibit the near-field propagation characteristics of electromagnetic signals and the spatial non-stationarity of mmWave XL-MIMO *** exploiting the spatial block sparsity and common frequency-domain sparsity pattern of massive access channels,the joint AUD and CE problem can be then formulated as a Multiple Measurement Vectors Compressive Sensing(MIMV-CS)*** on the designed sensing matrix,a B-SOMP algorithm is proposed to achieve joint AUD and ***,simulation results show that the proposed solution can obtain a better AUD and CE performance than the conventional CS-based scheme for massive IoT access in near-field HSR communications.

关键词： High-speed railway communications Massive access Activeuser detection Channel estimation Millimeter-wave extra-large scale MIMO Near-field spatial non-stationarity

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Non-contact Head Gesture Maneuvering system for Electric Wheelchair using a Depth Sensor

Non-contact Head Gesture Maneuvering System for Electric Whe...

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International Conference on Sensing Technology

作者： Hirofumi Ohtsuka Tatsuya Kato Koki Shibasato Takahiro Kashimoto Department of Control and Information Systems Engineering National Institute of Technology Kumamoto College Advanced Course of Electronics and Information Systems Engineering National Institute of Technology Kumamoto College

ISBN: (纸本)9781479963157

Population of elderly people has been increasing not only in Japan but also in many countries. For the purpose of expanding the active field of them and persons with disabilities, and of improving their quality of life (QOL), the development of an intelligent wheelchair has been intensively studied. In this research, a new maneuver interface of the electric wheelchair instead of the joy-stick is considered. To develop such an interface, this paper deals with a simple non-contact detection method of horizontal head gesture motion using a depth sensor.

关键词： Electric wheelchair Gestures Disabled Persons Maneuvering inspection methods aged person Head Sensors

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Adaptive iterative learning control for a class of iteration-varying nonlinear systems with known periodicity

Adaptive iterative learning control for a class of iteration...

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International Conference on Test and Measurement (ICTM)

作者： Yin Chenkun Hou Zhongsheng Advanced Control System Laboratory School of Electronics and Information Engineering Beijing Jiaotong University Beijing China

ISBN: (纸本)9781424446995

In this paper, a class of iteration-varying nonlinear system to track a non-repetitive desired trajectory is addressed using a new adaptive iterative learning control. The iteration-variance in parameter is described by a special kind of periodicity in iteration domain. The convergent result is elaborately proven using composite energy function.

关键词： Programmable control Adaptive control Nonlinear control systems Control systems Nonlinear systems Traffic control Trajectory Electronic equipment testing Robotic assembly Nonlinear dynamical systems

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Model-free adaptive control of dual-axis linear motor gantry system

Model-free adaptive control of dual-axis linear motor gantry...

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Chinese Control Conference (CCC)

作者： Yixiao Zhang Xiangbin Liu Zhongsheng Hou Shangtai Jin Advanced Control System Laboratory School of Electronics and Information Engineering Beijing Jiaotong University 100044 China

The linear motor has characteristics of simple structure, high positioning accuracy and fast response. Now it is widely used in machinery manufacturing, aerospace industry and many linear motion occasions. In this paper, in order to realize accuracy tracking of two-axis linear motor gantry system, modified model free adaptive control is proposed and used to realize the position control. The controller design is just based on the input and output data of linear motor instead of motor mathematical model. For the gantry system, an experimental setup is built. In the designed experimental *** use Visual C++ to realize the control algorithm, PMAC Clipper to control the input and output data with, and D1 driver to drive the motor. At last, experiment results show that the method guarantees strong robustness for desired trajactory and satisfactory control performance.

关键词： Adaptation models Adaptive control Electronic mail Control systems Educational institutions Accuracy Mathematical model

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An educational tool to simulate γ-rays intensity distribution around blocks

An educational tool to simulate γ-rays intensity distributi...

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2018 Transactions of the American Nuclear Society, ANS 2018

作者： Kunimi, Yusuke Tenzou, Hideki Yokoyama, Kai Nagoshi, Ayumi Advanced Course in Electronics Information and Communication Engineering National Institute of Technology Kagawa College 551 Koda Takuma-cho Mitoyo Kagawa769-1192 Japan Department of Electronic Systems Engineering National Institute of Technology Kagawa College 551 Koda Takuma-cho Mitoyo Kagawa769-1192 Japan

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A γ-rays source detector by image processing technology

A γ-rays source detector by image processing technology

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2018 Transactions of the American Nuclear Society, ANS 2018

作者： Yokoyama, Kai Tenzou, Hideki Nagoshi, Ayumi Kunimi, Yusuke Advanced Course in Electronics Information and Communication Engineering National Institute of Technology Kagawa College 551 Koda Takuma-cho Mitoyo Kagawa769-1192 Japan Department of Electronic Systems Engineering National Institute of Technology Kagawa College 551 Koda Takuma-cho Mitoyo Kagawa769-1192 Japan

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A reduced-size and tunable branch-line 3dB hybrid

A reduced-size and tunable branch-line 3dB hybrid

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Asia-Pacific Conference on Microwave

作者： Satoshi Kondo Hajime Kondo Hitoshi Ishida Advanced System Engineering Course Gunma National College of Technology Maebashi Gunma Japan Chuo Electronics Company Limited Hachioji Tokyo Japan

This paper proposes a reduced-size and tunable 3dB branch-line hybrid. The proposed hybrid consists of short transmission lines with equal characteristic impedance and shunt lumped tuning capacitors. The authors fabricated the proposed hybrid on PTFE substrates at 2GHz. In the measurements, while tuning capacitance changes from 1.3pF to 2.7pF, center frequency shifted 1.8GHz to 2.4GHz, with -19.5dB return loss, ±0.3dB outputs amplitude difference, and 90±3° phase difference. These measurement results agree with analytical calculation accurately. In general, these hybrids are particularly useful for power dividers or power combiners in microwave circuit as balanced mixers, image-rejection mixers, and balanced amplifiers.

关键词： Tuning Capacitance Equations Capacitance measurement Couplings Frequency measurement Reflection

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