Report on Exercises 2 - Diodes (1)

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Piletid vastustega

Ticket No1 1)The characteristic is called output characteristic or volt-ampere charateristic of a Rectifier Diode. 2)Rectifier Diode. 3) A is called Anode and C is called Cathode. An Anode has positive potential and therefore collects electrons in the device. Cathode has negative potential and therefore emits electrons to anode. The symbol looks like an arrow that ponts from the anode to the cathode, and reminds that conventional current flows easily from the p side(anode) to the n side(cathode). BIASING. Forward biasing. If the current in a diode is too large, excessive heat will destroy the device.

Elektroonika jõupooljuht tehnika

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Jõuelektroonika diood

Tallinn University of Technology Department of Electrical Drives and Power Electronics Report Diodes Tallinn 2011  + A VS RV V D - Fig. 1.1. Circuit diagram

Elektroonika jõupooljuht tehnika

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Book Analog Interfacing to Embedded Microprocessors

Analog Interfacing to Embedded Microprocessors Real World Design Analog Interfacing to Embedded Microprocessors Real World Design Stuart Ball Boston Oxford Auckland Johannesburg Melbourne New Delhi Newnes is an imprint of Butterworth–Heinemann. Copyright © 2001 by Butterworth–Heinemann A member of the Reed Elsevier group All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of the publisher. Recognizing the importance of preserving what has been written, Butterworth–Heinemann prints its books on acid-free paper whenever possible. Library of Congress Cataloging-in-Publication Data Ball, Stuart R., 1956– Analog interfacing to embedded microprocessors : real world design / Stuart Ball. p. cm. ISBN 0-7506-7339-7 (pbk. : alk. paper) 1. Embedded computer

Mehhatroonika

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Electronics and semiconductor engineering exercise 1

Tallinn University of Technology Department of Electrical Engineering ELECTRONICS AND SEMICONDUCTOR ENGINEERING Exercises Linear circuits Student: xxxxxxxx Code: xxxxxx Group: xxxxxx TALLINN xxxx 1.1 RL-Circuit L1 100mH

Energiaarvutus

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Electrical drives and power electronics

· The induction machines are associated with the names of Dolivo-Dobrovolsky Tesla · One of the first eletrical motors has been built by Jacobi · Electromagnetic efficiency is measured in tesla · Time constants are measured by ms s hours · Who is the author of the first electrical motor Henry · Which rectifier cannot be built without a transformer 3-phase midpoint · Call the benefits of 3-phase rectifiers upon the 1-phase ones output voltage · Which rectifier has more diodes 3-phase bridge · In the case of high-pass filter before the load, what can you tell about the current higher · What is the difference between the construction and operation of a rectifier and an inverter input wave output wave · What are the advantages of a single-phase bridge inverter high efficiency high reliability · What kind of control provides the highest output power of the inverter block · What load inductance provides the interruptible output current zero

Elektriajamid

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Single-Phase Full-Wave Rectifiers

Tallinn University of Technology Department of Electricl Power Engineering and Mechatronics Report on Exercises 2 on Power Electronics Single-Phase Full-Wave Rectifiers Tallinn 2017 Given parameters: Output voltage, Ud = 10 V Input frequency, fin = 50 Hz Load resistance, Rload = 70 kOhm Calculations: u1 10 I d= = =0.143 mA R L 70000 πUd 3.14∗10 US= = =11.1 V 2 √2 2 √2 U Smax =U S∗√ 2=11.1∗√ 2=15.7 V

Inglise keel

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Mikrokontrollerid ja robootika kodutöö 4

Read Chapter_4_Time_Based_Measurements.pdf Question 1 When converting an analogue value to a frequency, consider the following diagram describing the system. The frequency changes from 20 MHz to 18 MHz and the system samples at an interval of 2ms. How many counts does the microprocessor detect at, 2ms a) 20 MHz? =40000 counts 50 ns 2ms b) 18 MHz? =36 000 counts 55,55 ns What is the difference in terms of number of counts detected by the microprocessor? Between 20MHz and 18MHz are 4000 counts. Question 2 Consider the following diagram The frequency changes from 20 MHz to 18 MHz and the system samples at an interval of 100ns. a) What is the difference in terms of number of counts detected by the microprocessor?  10 MHz 10 MHz =5000 =5555,555 2000 Hz 1800 Hz Between 20MHz and 18MHz are 555,555 counts. b)

Mikrokontrollerid ja robootika

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W11 Homework Solutions

frequency. Flyback protection must also be added. Using Google, you found four possible circuits to use. These four circuits are shown in the below Figure. A B. . C. D. Which circuit will you use that can satisfy all given specifications? Justify your answer. Solution: Specifications state (with circuits adhering in square brackets):  ESD protection(high and low swing)[A,C] (B diodes wrong way around, D none)  ESD rise time limiting [C] (all others no series resistor)  Flyback protection [B,C] (others has none)  Release time max 2.2ms [B,C] (others has none, p. 139 table, more than 6V yback) The only circuit that satisfies all specifications is C.

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