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检索条件"任意字段=Conference on Ph.D Research in Microelectronics and Electronics"

共 834 条记录，以下是251-260 订阅

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conference Proceedings - 10th conference on ph. d. research in microelectronics and electronics, PRIME 2014

Conference Proceedings - 10th Conference on Ph. D. Research ...

引用

10th conference on ph. d. research in microelectronics and electronics, PRIME 2014

ISBN: (纸本)9781479949946

The proceedings contain 106 papers. The topics discussed include: a new circuit topology for floating high voltage level shifters;continuous time analog to digital conversion in interferer resistant wake up radios;green improvements of IEEE 802.11 directional multi-gigabit physical layer specifications;an efficient simulation methodology for electrical energy systems;macromodel-based signal and power integrity simulations of an LP-ddR2 interface in mSiP;a new algorithm for convergence verification in circuit level simulations;time interleaved current steering dAC for ultra-high conversion rate;calibrated switched capacitor integrators based on current conveyors and its application to delta sigma AdC;a vector implementation of a fast Fourier transform on dSP and NVIdIA CUdA platforms;sensitivity based methodologies for process variation aware analog IC optmization;and design of a low power wireless sensor network node for distributed active vibration control system.

关键词： microelectronics

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5-Level E-type back to back power converters—A new solution for extreme efficiency and power density

5-Level E-type back to back power converters—A new solution...

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ph.d. research in microelectronics and electronics (PRIME)

作者： Marco di Benedetto Luca Solero Fabio Crescimbini Alessandro Lidozzi Petar J. Grbović Center for Power Electronics and Drives C-PED Roma TRE University Roma Italy Power Conversion Technology Lab. (PCTL) Huawei Technologies Dueseldorf GmbH Nuremberg Germany

A novel solution to high efficiency and high specific power three-phase Back to Back Power Converters has been proposed and theoretically investigated in this paper. Target applications are variable speed gen-sets, electric drives and independent power supplies. The solution proposed is based on a novel 5-Level E-Type topology. Advantages of the new solution, such as significant reduction of the input/output filter size/weight and switching losses have been theoretically investigated. A typical 20kVA independent gen-set power supply application has been analyzed as a case study. An extraordinary double conversion efficiency of 98.6% and specific power of 5kVA/kg have been achieved. The design results has been confirmed by set of Plexim/PLECS simulations.

关键词： Inverters Rectifiers Capacitors Topology RLC circuits Inductance

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Prediction of Chaotic Time-Series with different MLE Values using FPGA-based ANNs 14

Prediction of Chaotic Time-Series with Different MLE Values ...

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13th conference on ph.d. research in microelectronics and electronics (PRIME) / 14th International conference on Synthesis, Modeling, Analysis and Simulation Methods and Application to Circuit design (SMACd)

作者： Pano-Azucena, A. d. Tlelo-Cuautle, E. de la Fraga, L. G. Sanchez-Lopez, C. Rangel-Magdaleno, J. J. Tan, Sheldon X. -d. INAOE Puebla Mexico CINVESTAV Mexico City DF Mexico Univ Autonoma Tlaxcala Tlaxcala Mexico Univ Calif Riverside Riverside CA 92521 USA

ISBN: (纸本)9781509050529

Chaotic time series can be generated from different kinds of chaotic oscillators in different dimensions and directions. However, their prediction becomes a challenge when they have different values of their maximum Lyapunov exponent (MLE), which is associated to the degree of unpredictability of a chaotic system. In this manner, we highlight how an artificial neural network (ANN) can be used to predict chaotic time series with different MLE value. The cases of study are three chaotic time series with different MLE values, which are predicted by an ANN that is validated through measuring the mean square error (MSE) and root MSE (RMSE). We provide design and training details of a 5-layers ANN, and its implementation using field-programmable gate arrays. Finally, the ANN is validated with the prediction results that are compared to the original chaotic time series according to their MSE and RMSE.

关键词： Time series analysis Maximum likelihood estimation Training Field programmable gate arrays Neurons Feedforward neural networks Topology

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A transistor array chip for the statistical characterization of process variability, RTN and BTI/CHC aging 14

A transistor array chip for the statistical characterization...

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作者： diaz-Fortuny, J. Martin-Martinez, J. Rodriguez, R. Nafria, M. Castro-Lopez, R. Roca, E. Fernandez, F. V. Barajas, E. Aragones, X. Mateo, d. UAB REDEC Grp Elect Engn Dept Barcelona Spain Univ Seville CSIC IMSE CNM Inst Microelect Sevilla Seville Spain UPC Elect Engn Dept Barcelona Spain

ISBN: (纸本)9781509050529

In this work, a CMOS transistor array is presented, which allows performing process variability, Random Telegraph Noise and BTI/CHC aging characterization in a single chip. The array, called ENdURANCE, integrates 3136 MOS transistors, for single and massive electrical testing. This chip, together with a dedicated measurement set-up, allows programming any of these electrical tests, considerably reducing the total time needed for aging measurements by using a parallelization technique.

关键词： Bias Temperature Instability (BTI) Random Telegraph Noise (RTN) Channel Hot Carriers (CHC) variability aging degradation

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Model of Series-Parallel photovoltaic Arrays designed for Parallel Computing 14

Model of Series-Parallel Photovoltaic Arrays Designed for Pa...

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作者： Bastidas-Rodriguez, Juan d. Gonzalez, daniel Ramos-Paja, Carlos A. Univ Ind Santander Escuela Ingn Elect Elect & Telecomunicac Bucaramanga Colombia Inst Tecnol Metropolitano Medellin Colombia Univ Nacl Colombia Fac Minas Medellin Colombia

ISBN: (纸本)9781509050529

photovoltaic (PV) arrays connected in Series-Parallel (SP) configuration are widely used in PV installations of different power levels. Accurate and low calculation time models of SP arrays are required for different applications;however, the models available in literature have a high computational burden due to the requirement of solving nested systems of nonlinear equations. This paper introduces a mathematical model for SP arrays designed for parallel computing to improve the calculation speed. For a given array voltage the current of each string is calculated by solving a nonlinear equation, which is independent from the other strings. Therefore, each nonlinear equation is solved in a different core and, finally, all the strings' currents are added to obtain the array current. Simulation results put into evidence the capacity of the proposed model to reproduce the characteristic curves of an SP array and the reduction in the calculation time with respect to an equivalent model available in literature.

关键词： Mathematical model Integrated circuit modeling Computational modeling Nonlinear equations Parallel processing Short-circuit currents photovoltaic systems

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Comprehensive detection of Counterfeit ICs Via On-Chip Sensor and Post-Fabrication Authentication Policy 14

Comprehensive Detection of Counterfeit ICs Via On-Chip Senso...

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作者： Ye, Yaoyao Kim, Taeyoung Chen, Haibao Wang, Hai Tlelo-Cuautle, Esteban Tan, Sheldon X. -d. Shanghai Jiao Tong Univ Dept Micro Nano Elect Shanghai 200240 Peoples R China Univ Calif Riverside Dept Elect & Comp Engn Riverside CA 92521 USA Univ Elect Sci & Technol China Sch Microelect & Solid State Elect Chengdu 610054 Sichuan Peoples R China INAOE Dept Elect Puebla 72840 Mexico

ISBN: (纸本)9781509050529

Counterfeit integrated circuits (ICs) have posed a major security and safety threat on commercial and mission-critical systems. In this paper, we propose to develop a comprehensive counterfeit ICs detection and prevention strategy, consisting of an innovative multi-functional on-chip sensor and a related post-fabrication authentication methodology. We target at many counterfeit ICs including the recycled/remarked/out-of-spec ICs, as well as cloned and over-produced ICs. First, the new sensor consists of antifuse memory and aging sensors to reduce reference circuit related area overhead of those sensor circuits. Second, the new sensor combines both the ring-oscillator based aging sensor with recently proposed electromigration(EM)-based aging sensor so that it can be effective for estimation of both short and long period time of chip usage. Third, on top of the new sensor, we propose a new post-fabrication authentication methodology to detect and prevent non-defective counterfeit ICs. Simulation results show the advantage of the proposed multifunctional sensor against existing on-chip sensors in terms of functionality, detection coverage and usage time estimation range and accuracy.

关键词： Aging System-on-chip Wires Authentication databases Estimation

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Electrical characterization of GO at different ph towards MCF7 and MCF10a: Preliminary result

Electrical characterization of GO at different pH towards MC...

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Asia Pacific conference on Postgraduate research in microelectronics & electronics (PrimeAsia)

作者： N.S. Mazlan Siti S. Mat Isa Muhammad. M. Ramli L.F.A. Talip d.S.C. Halin Rafeezul Mohamed M.N. Mohtar Center of Excellence Geopolymer and Green Technology (CEGeoGTech) Universiti Malaysia Perlis School of Microelectronic Engineering Universiti Malaysia Perlis Arau Perlis MY School of Materials Engineering Universiti Malaysia Perlis Arau Perlis MY Regenerative Medicine Cluster Advanced Medical and Dental Institute (AMDI) Universiti Sains Malaysia. Universiti Putra Malaysia

The intracellular ph of cancerous cell is commonly acidic while the intracellular ph of normal cell is neutral. The objective of this study is to study the electrical characterization in terms of resistance between the ph of sensing material with the intracellular ph of the cells. Three different ph of Graphene Oxide (GO) were used as a solvent to analyze their interaction towards breast cancer cells (MCF7) and breast normal cells (MCF10a). GO which produced by Hummer's method was used due to their solubility and biocompatibility characteristics which easily diffuse through the cell. In this experiment, the characteristics of GO were analyzed and confirmed by using Atomic Force Microscopy (AFM) and Fourier Transform Infrared spectroscopy (FTIR). In order to measure the resistance of MCF7 and MCF10a cells after treated with GO for 24 hours, gold electrodes with 10 μ-gaps of interdigitated electrodes (IdEs) were used. The results were obtained for three periods of time which were immediate, 5 minutes and 10 minutes after the treated cells being exposed at room temperature. The results show that the resistance of MCF10a cells increased after treated with higher ph of GO which is ph 7 and the resistances of the MCF7 cells decreased as the ph of GO increased to ph 7. Finally, the viable cells were calculated by using haemocytometer in order to prove that the increased of the resistances were due to the increased number of viable cells.

关键词： Two dimensional displays Asia conferences microelectronics

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Space active optics: In flight aberrations correction for the next generation of large space telescopes

Space active optics: In flight aberrations correction for th...

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International conference on Space Optics 2010, ICSO 2010

作者： Laslandes, M. Ferrari, M. Hugot, E. Lemaitre, G. Laboratoire D'Astrophysique de Marseille CNRS and Université de Provence 38 rue F. Joliot Curie Marseille cedex 1313388 France

ISBN: (纸本)9781510616196

The need for both high quality images and light structures is a constant concern in the conception of space telescopes. In this paper, we present an active optics system as a way to fulfill those two objectives. Indeed, active optics consists in controlling mirrors' deformations in order to improve the images quality [1]. The two main applications of active optics techniques are the in-situ compensation of phase errors in a wave front by using a corrector deformable mirror [2] and the manufacturing of aspherical mirrors by stress polishing or by in-situ stressing [3]. We will focus here on the wave-front correction. Indeed, the next generation of space telescopes will have lightweight primary mirrors;in consequence, they will be sensitive to the environment variations, inducing optical aberrations in the instrument. An active optics system is principally composed of a deformable mirror, a wave front sensor, a set of actuators deforming the mirror and control/command electronics. It is used to correct the wave-front errors due to the optical design, the manufacturing imperfections, the large lightweight primary mirrors' deflection in field gravity, the fixation devices, and the mirrors and structures' thermal distortions due to the local turbulence [4]. Active optics is based on the elasticity theory [5];forces and/or load are used to deform a mirror. Like in adaptive optics, actuators can simply be placed under the optical surface [1,2], but other configurations have also been studied: a system's simplification, inducing a minimization of the number of actuators can be achieved by working on the mirror design [5]. For instance, in the so called Vase form Multimode deformable Mirror [6], forces are applied on an external ring clamped on the pupil. With this method, there is no local effect due to the application of forces on the mirror's back face. Furthermore, the number of actuators needed to warp the mirror does not depend on the pupil size;it is a fully scalable

关键词： Mirrors

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Fast and Accurate Workload-Level Neural Network Based IC Energy Consumption Estimation 14

Fast and Accurate Workload-Level Neural Network Based IC Ene...

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作者： Laurenciu, N. Cucu Cotofana, S. d. Delft Univ Technol Comp Engn Lab Delft Netherlands

ISBN: (纸本)9781509050529

A fast, yet accurate nanoscale IC energy estimation is a design-time desideratum for area-delay-power-reliability optimized circuits and architectures. This paper introduces an IC energy estimation approach, which instead of sequentially propagating workload vectors throughout the circuit, relies on an one time propagation of the workload statistics. To this end, the basic gates need be SPICE pre-characterized with respect to (w.r.t.) static and dynamic energy consumption per input transition type and Neural Network based gate models constructed and trained in order to estimate gate output statistics and consumed energy based on gate input statistics, i.e., the '0' -> '0', '0' -> '1', '1' -> '0', and '1' -> '1' transition probabilities. Both pre characterization and training are done once per technology node and do not contribute to the actual evaluation time. In this way, regardless of n, the number of workload input vectors, by propagating signal statistics instead of logic values the overall circuit energy consumption is evaluated in one instead of n circuit traversals. Moreover, as opposed to the constant and equal gate delay assumption utilized in state of the art energy estimation methods, the proposed approach takes into account the real gate propagation delays, which yields estimates that are closer to the actual energy figures. We evaluated with the proposed method the static and dynamic energy consumption for a set of ISCAS'85 circuits and a 10, 508-gate hashing circuit, using TSMC 40nm CMOS technology, and 50, 000-vector workloads. The experiments indicate that our method provides an estimation error below 2.6% and 1.5% for dynamic and static energy, respectively, when compared to the accurate SPICE measurements, while providing an estimation speedup in the order of 50, 000x.

关键词： Energy Estimation Neural Networks

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Low Power RSSI Outdoor Localization System 12

Low Power RSSI Outdoor Localization System

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12th conference on ph.d. research in microelectronics and electronics (PRIME)

作者： El Agroudy, Naglaa Joram, Niko Ellinger, Frank Tech Univ Dresden Chair Circuit Design & Network Theory D-01062 Dresden Germany

ISBN: (纸本)9781509004935

This work presents a low power outdoor localization system that implements a power management technique in order to control the wakeup and sleep of the different modules in the system. Through this technique, the system achieves 6.7 mu A in sleep mode. A new weighted least mean squares solution algorithm that is based on received signal strength indicator (RSSI) measurements is introduced. Both simulation and measurement results are presented. It is shown that over 50% improvement in position estimation is achieved using the proposed weighted least mean squares algorithm.

关键词： Low-power electronics least mean square algorithm wireless sensor networks

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