"Pulsewidth modulation" Essays and Research Papers

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    advd

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    Exp. 2: finding relation between vgs and vds Spice Code: ‚‚‚‚‚‚ \*** SPICE deck for cell NMOSCH1{sch} from library 2011A3PS271 *** Created on Thu Aug 22‚ 2013 14:45:24 *** Last revised on Thu Aug 22‚ 2013 15:13:10 *** Written on Thu Aug 22‚ 2013 15:13:17 by Electric VLSI Design System‚ *version 9.04 *** Layout tech: mocmos‚ foundry MOSIS *** UC SPICE *** ‚ MIN_RESIST 4.0‚ MIN_CAPAC 0.1FF .global gnd *** TOP LEVEL CELL: NMOSCH1{sch} Mnmos-4@1 net@16 net@7 gnd gnd NMOS L=2U W=2U

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    +++Multi-motor Control System Design Based on Can Bus Intro: Motor is used in many industries for various purposes. it acts as a bridge between man and machine. Even though we use different types of motor we need a control unit to control the motor. Controlling plays a vital role in industries. Typical industries may use hundreds of motor and hence they need a individual control unit for each motor. Existing System: Each motor is provided with individual motor control

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    Principles of Sigma-Delta ADCs Abstract: This article covers the theory behind a Delta-Sigma analog-to-digital converter (ADC). It specifically focuses on key digital concepts of oversampling‚ noise shaping‚ and decimation filtering. Introduction Sigma-delta converters offer high resolution‚ high integration‚ and low cost‚ making them a good ADC choice for applications such as process control and monitoring. The analog side of a sigma-delta converter (a 1-bit ADC) is very simple. The digital side

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    DIGITAL CONTROLLER DESIGN Lab Report-02 (15-02-2014) Arun Rahul S Sr No: 10578 Open Loop Speed Control of DC Motor Circuit Diagram Vdc F.D Va eb eb ATMEGA 328p POT R sense Controller ADC PWM Gate driver D DC motor Ia sense Q Eb sense Duty cycle adjustment Fig (1).DC motor speed control experimental setup. The duty cycle is controlled by varying the duty cycle adjustment pot. Ratings and specification Vdc : 24.4 V PMDC Motor/Generator

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    The University of Adelaide Assignment AMP1 – Ultrasonic range finder Introduction The aim for this assignment is to write a program for the ultrasonic range finder. It is similar to the sonar system‚ which emit a time-limited ultrasonic wave and receive the echo of the signal. The delay between transmission and reception of the Signal can be used as a measure for the distance at which the object is found. The process shows below. Overview The microcontroller program needs to implement

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    | ****Discuss briefly the influence of body language‚ voice modulation‚audience awareness and presentation plan for successful oral presentation?ORAL PRESENTATION SKILLS : Body language |  **What is body language? | -- Eye contact‚ facial expressions‚ posture‚ movements‚ gestures.Why is it useful? It is natural and a part of communication. to clarify meaning; it is very visual to vent nervousness to maintain interest to emphasize The golden rule is "Be natural and relaxed!" |

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    of the Vienna Rectifier with the carrierbased modulation strategy are examined carefully‚ and the proposed control algorithm ensures that appropriate voltage/current directional constraints are met. A promising cost-reduction opportunity can be seen with the elimination of input current sensing to operate the Vienna Rectifier. The control algorithm is verified via Saber simulation and experimental results. Index Terms—Carrier-based pulsewidth modulation (PWM)‚ phase-angle control‚ unity power factor

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    results are provided to verify the theoretical analysis results. INTRODUCTION The control techniques of switching dc-dc converters can be generally divided into the following three ways. 1) Constant –frequency control ‚such as pulsewidthmodulation-based voltage-mode control and current- mode control 2) Variable-frequency control ‚such as output-voltage-ripple-based control like constant-on-time (COT) control or constant-off-time control 3) Hybrid control To improve

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    tag to tag communication

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    CONTENTS 1. ABSTRACT…………………………………………………………2 2. INTRODUCTION………………………...…………………………3 3. THEORY…………….………………………………………………6 3.1. LINK BUDGET…………………………………………………6 3.2. NEAR FIELD COUPLING BETWEEN TAGS………………...8 3.3. MODULATION DEPTH………………………………………..9 3.4. SIMULATION…………………………………………………11 4. IMPLEMENTATION………………………………………………12 4.1. SYSTEM…………………………………………………….....12 4.2. READER TAG………………………………………………...13 5. EXPERIMENTS……………………………………………………16 5.1. VERIFYING HFSS SIMULATION

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    ABSTRACT The ETCS system allows the ECM to precisely control the opening and closing of the throttle valve based on drivers input and is also interrelated with chassis control ECUs such as Traction Control and Vehicle Stability Control (Skid Control ECU). Introduction The Accelerator Pedal Position Sensor (APPS) detects the accelerator pedal position (driver input) and sends a signal to the ECM. Based on the input from the APPS and other ECUs (ABS‚ TRAC and VSC)‚ the engine ECM directs the

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