A Visual Tutorial for Schematics
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Electric Circuit • Basic Laws – Ohm’S Law – Kirchhoff's Voltage Law – Kirchhoff's Current Law • Power and Energy
Basic Definitions & Basic Laws Dr. Mohamed Refky Amin Electronics and Electrical Communications Engineering Department (EECE) Cairo University [email protected] http://scholar.cu.edu.eg/refky/ Outline of this Lecture • Course Contents, References, Course Plan • Basic Definitions • Topology of Electric Circuit • Basic Laws – Ohm’s Law – Kirchhoff's Voltage Law – Kirchhoff's Current Law • Power and Energy Dr. Mohamed Refky 2 References • Textbook: – “Fundamentals of Electric Circuits”, Alexander and Sadiku, 5th edition • References: – J. W. Nilsson and S. Riedel, Electric Circuits. 8th Edition, Prentice Hall, 2008. – Syed A. Nasar, “Electric Circuits,” Schaum’s Solved Problems Series, Mcgraw-Hill, New York, 1988. – Cunningham Stuller, “Circuit Analysis,” John Wiley & Sons Inc., New York, 1995. Dr. Mohamed Refky 3 Course Plan • Instructor: Prof. Mohamed Fathy Dr. Mohamed Refky • TA: TBA • Grading: – 40% Activity • Quizzers • Assignments • Attendance – 20 % Midterm – 40% Final Exam • Office Hours: TBA Dr. Mohamed Refky 4 Course Contents Week Topic 1 Basic Definitions & Basic Laws 2 3 Methods of solution of DC circuits 4 8 Network Theorems 6 Midterm 7 Introduction to Capacitors and Inductors 8 Sinusoids and phasors 9 10 Sinusoidal steady state analysis 11 12 Three Phase Circuits Dr. Mohamed Refky 5 Introduction Importance of this Course For an electrical engineering student, basic electric circuit theory is an essential to understand several other courses. Many branches of electrical engineering, such as power, electric machines, electronics, and instrumentation, are based on electric circuit theory. Dr. Mohamed Refky 6 Outline of this Lecture • Course Contents, References, Course Plan • Basic Definitions • Topology of Electric Circuit • Basic Laws – Ohm’s Law – Kirchhoff's Voltage Law – Kirchhoff's Current Law • Power and Energy Dr. -
Multicap 9 Schematic Capture User Guide
Electronics WorkbenchTM Multicap 9 Schematic Capture User Guide TitleShort-Hidden (cross reference text) February 2006 371889A-01 Support Worldwide Technical Support and Product Information ni.com National Instruments Corporate Headquarters 11500 North Mopac Expressway Austin, Texas 78759-3504 USA Tel: 512 683 0100 Worldwide Offices Australia 1800 300 800, Austria 43 0 662 45 79 90 0, Belgium 32 0 2 757 00 20, Brazil 55 11 3262 3599, Canada 800 433 3488, China 86 21 6555 7838, Czech Republic 420 224 235 774, Denmark 45 45 76 26 00, Finland 385 0 9 725 725 11, France 33 0 1 48 14 24 24, Germany 49 0 89 741 31 30, India 91 80 41190000, Israel 972 0 3 6393737, Italy 39 02 413091, Japan 81 3 5472 2970, Korea 82 02 3451 3400, Lebanon 961 0 1 33 28 28, Malaysia 1800 887710, Mexico 01 800 010 0793, Netherlands 31 0 348 433 466, New Zealand 0800 553 322, Norway 47 0 66 90 76 60, Poland 48 22 3390150, Portugal 351 210 311 210, Russia 7 095 783 68 51, Singapore 1800 226 5886, Slovenia 386 3 425 4200, South Africa 27 0 11 805 8197, Spain 34 91 640 0085, Sweden 46 0 8 587 895 00, Switzerland 41 56 200 51 51, Taiwan 886 02 2377 2222, Thailand 662 278 6777, United Kingdom 44 0 1635 523545 For further support information, refer to the Technical Support Resources and Professional Services page. To comment on National Instruments documentation, refer to the National Instruments Web site at ni.com/info and enter the info code feedback. -
Introduction to Electrical and Computer Engineering International
Introduction to Electrical and Computer Engineering Basic Circuits and Simulation Electrical & Computer Engineering Basic Circuits and Simulation (1 of 22) International System of Units (SI) • Length: meter (m) • SI Prefixes (power of 10) • Mass: kilogram (kg) – 1012 Tera (T) • Time: second (s) – 109 Giga (G) – 106 Mega (M) • Current: Ampere (A) – 103 kilo (k) • Voltage: Volt (V) – 10-3 milli (m) • Temperature: Degrees – 10-6 micro (µ) Kelvin (ºK) – 10-9 nano (n) – 10-12 pico (p) Electrical & Computer Engineering Basic Circuits and Simulation (2 of 22) 1 SI Examples • A few examples: • 1 Gbit = 109 bits, or 103106 bits, or one thousand million bits – 10-5 s = 0.00001 s; use closest SI prefix • 1×10-5 s = 10 × 10-6 s or 10 μs or • 1×10-5 s = 0.01 × 10-3 s or 0.01 ms Electrical & Computer Engineering Basic Circuits and Simulation (3 of 22) Typical Ranges Voltage (V) Current (A) • 10-8 Antenna of radio • 10-12 Nerve cell in brain receiver (10 nV) • 10-7 Integrated circuit • 10-3 EKG – voltage memory cell (0.1 µA) produced by heart • 10×10-3 Threshold of • 1.5 Flashlight battery sensation in humans • 12 Car battery • 100×10-3 Fatal to humans • 110 House wiring (US) • 1-2 Typical Household • 220 House wiring (Europe) appliance • 107 Lightning bolt (10 MV) • 103 Large industrial appliance • 104 Lightning bolt Electrical & Computer Engineering Basic Circuits and Simulation (4 of 22) 2 Electrical Quantities • Electric Charge (positive or negative) – (Coulombs, C) - q – Electron: 1.602 x 10 • Current (Ampere or Amp, A) – i or I – Rate of charge flow, – 1 1 Electrical & Computer Engineering Basic Circuits and Simulation (5 of 22) Electrical Quantities (continued) • Voltage (Volts, V) – w=energy required to move a given charge between two points (Joule, J) – – 1 1 1 Joule is the work done by a constant 1 N force applied through a 1 m distance. -
Printed Circuit Board Design: a Guide for EE210 Students
Printed Circuit Board Design: A Guide for EE210 Students So, you took EE210 and learned all about how to capture schematics and perform simulations in Multisim, but now you want to make a PCB for your new circuit design. The 30-minute run through of Ultiboard left you scratching your head and you want to know how to make a PCB for REAL. This guide will show you the complete process for designing a printed circuit board, which includes schematic capture, simulation, and layout. Depending on the circuit you are making a PCB for, this process should take 3-5 hours to complete. What is a PCB? A printed circuit board, or PCB, is an assembly that mechanically supports electronic components while electrically connecting them through conductive traces. PCBs are typically constructed of a fiberglass substrate called FR4 that is covered in copper on both sides. The substrate acts as the mechanical core of the PCB that holds everything in place, while the copper layers are used to form traces, which are the copper connections that electrically connect each component Why make a PCB? You have constructed many circuits on a breadboard as part of your EE210 lab and you may wonder: Why go through all the trouble of making a PCB? There are several reasons to move a circuit from a breadboard to a PCB. PCBs are more mechanically stable, offer better performance if well designed, and can be mass produced. For these reasons, PCB design is often an essential part of designing electronics. What you will need • Computer with Multisim and Ultiboard • Printer Both of these materials can be found in Electrical Engineering Department computer labs. -
Chapter 6 Inductance, Capacitance, and Mutual Inductance
Chapter 6 Inductance, Capacitance, and Mutual Inductance 6.1 The inductor 6.2 The capacitor 6.3 Series-parallel combinations of inductance and capacitance 6.4 Mutual inductance 6.5 Closer look at mutual inductance 1 Overview In addition to voltage sources, current sources, resistors, here we will discuss the remaining 2 types of basic elements: inductors, capacitors. Inductors and capacitors cannot generate nor dissipate but store energy. Their current-voltage (i-v) relations involve with integral and derivative of time, thus more complicated than resistors. 2 Key points di Why the i-v relation of an inductor isv L ? dt dv Why the i-v relation of a capacitor isi C ? dt Why the energies stored in an inductor and a capacitor are: 1 1 w Li, 2 , 2 Cv respectively? 2 2 3 Section 6.1 The Inductor 1. Physics 2. i-v relation and behaviors 3. Power and energy 4 Fundamentals An inductor of inductance L is symbolized by a solenoidal coil. Typical inductance L ranges from 10 H to 10 mH. The i-v relation of an inductor (under the passive sign convention) is: di v L , dt 5 Physics of self-inductance (1) Consider an N1 -turn coil C1 carrying current I1 . The resulting magnetic fieldB 1() r 1 N 1(Biot- I will pass through Savart law) C1 itself, causing a flux linkage 1 , where B1() r 1 N 1 , 1 B1 r1() d s1 P 1, 1 N I S 1 P1 is the permeance. 2 1 PNI 1 11. 6 Physics of self-inductance (2) The ratio of flux linkage to the driving current is defined as the self inductance of the loop: 1 2 L1NP 1 1, I1 which describes how easy a coil current can introduce magnetic flux over the coil itself. -
Introduction to Multisim Schematic Capture and SPICE Simulation
Introduction to Multisim Schematic Capture and SPICE Simulation By: Erik Luther Janell Rodriguez Introduction to Multisim Schematic Capture and SPICE Simulation By: Erik Luther Janell Rodriguez Online: < http://cnx.org/content/col10369/1.3/ > CONNEXIONS Rice University, Houston, Texas This selection and arrangement of content as a collection is copyrighted by Erik Luther, Janell Rodriguez. It is licensed under the Creative Commons Attribution 2.0 license (http://creativecommons.org/licenses/by/2.0/). Collection structure revised: September 26, 2006 PDF generated: October 26, 2012 For copyright and attribution information for the modules contained in this collection, see p. 81. Table of Contents 1 Introduction 1.1 Objectives for the National Instruments Multisim Course . 1 1.2 Interactive Schematic Capture and Layout in National Instruments Multisim . 4 1.3 Exercise: Introducing the National Instruments Multisim Environment . .. 9 2 Schematic Capture 2.1 Electrical and Electronic Components Available in National Instruments Multisim . 11 2.2 Exercise: Finding and Placing Components in National Instruments Multisim . .. 19 2.3 Electrical and Electronic Component Manipulation in National Instruments Mul- tisim .......................................................................................21 2.4 Exercise: Drawing A Schematic in National Instruments Multisim . 26 3 Circuits 3.1 Creating Circuits in Multisim . .. 29 3.2 Using Electrical Rules Checking in National Instruments Multisim . 31 3.3 Creating and Using Sub-Circuits in National Instruments Multisim . 33 3.4 Generating Schematic Reports and Annotation in National Instruments Multisim . 36 4 Simulation 4.1 Simulating Circuits using the SPICE in National Instruments Multisim . 39 4.2 Instrumenting a Circuit Simulation in National Instruments Multisim . .. 44 4.3 Exercise: Instrumenting Simulated Circuits in National Instruments Multisim . -
Chapter 2: Circuit Elements
Chapter 2: Circuit Elements Objectives o Understand concept of basic circuit elements . Resistor, voltage source, current source, capacitor, inductor o Learn to apply KVL, KCL, Ohm’s Law . Sign conventions Homework/Quiz/Exam Prep o When do we have enough equations? o Math requirements . Simultaneous linear algebraic equations Presentation o Ideal Basic Circuit Elements . Sources: Dependent and Independent . R, L, C o Resistors . Ohm’s Law . Power o Flashlight Circuit . KVL, KCL, Ohm . KVL shortcut o Special Cases . Short circuit; Open circuit . What happens to resistors that are shorted/opened? Activity: worksheet on KVL, KCL, Ohm Activity: sample problems Chapter 2: Circuit Elements There are five Ideal Basic Circuit Elements. We listed these in the previous chapter; we discuss them further here. The Ideal Basic Circuit Elements are as follows. Voltage source Current source Resistor Capacitor Inductor These circuit elements are used to model electrical systems, as we discussed in Chapter 1. They are available in the laboratory, but the ones in the lab are not “ideal”; they are “real”. When we draw circuit models on the board or in quizzes and exams, we assume that ideal elements are intended, unless otherwise stated. To solve circuits involving capacitors and inductors, we require differential equations. Therefore we will postpone these circuit elements until later in the course and deal for the moment with sources and resistors only. 2.1 Sources Source: a device capable of conversion between non-electrical energy and electrical energy. Examples… Generator: mechanical electrical Motor: electrical mechanical Important: energy and power can be either delivered or absorbed, depending on the circuit element and how it is connected into the circuit. -
The Printed Circuit Designer's Guide To... Executing
Executing Complex PCBs 2nd Edition Scott Miller Freedom CAD Services The Printed Circuit Designer's Guide to...™ Executing Complex PCBs 2nd Edition Scott Miller FREEDOM CAD SERVICES INC. © 2019 BR Publishing Inc. All rights reserved. BR Publishing Inc. dba: I-Connect007 942 Windemere Dr. NW Salem, OR 97304 U.S.A. ISBN: 978-0-9980402-4-0 Visit I-007eBooks.com for more books in this series. I-Connect007.com Peer Reviewers John R. Watson, CID Building Control Division Legrand, North America John R. Watson, CID, has worked in the PCB design field for nearly 20 years. In that time, he has held almost every position available. As the senior PCB engineer, John leads a team of 50+ designers in multiple divisions spanning the world in the Building Control Division of Legrand North America. Although he is a highly sought out speaker and writer, John’s passion still lies with mentoring and teaching, espe- cially young people. Stephen V. Chavez, CID/CID+ IPC Designers Council Executive Board Stephen V. Chavez, CID/CID+, is a member of the IPC Designers Council Executive Board and a lead electrical designer at a large, globally recognized aerospace company. He is an IPC CID+ certified designer and has been involved with the PCB design industry, both domestically and internationally, for over 28 years. Further, Stephen is an IPC CID designer certification instructor (CIT) with EPTAC Corporation and VP of the Phoenix chapter of the IPC Designers Council. He has also been a keynote speaker at several design forums at IPC APEX EXPO and other industry confer- ences and seminars and has published several industry articles to date. -
XSCHEM PDF Manual
XSCHEM 0.29 Manual and Tutorials XSCHEM : schematic capture and netlisting EDA tool Xschem is a schematic capture program, it allows creation of hierarchical representation of circuits with a top down approach . By focusing on interfaces, hierarchy and instance properties a complex system can be described in terms of simpler building blocks. A VHDL or Verilog or Spice netlist can be generated from the drawn schematic, allowing the simulation of the circuit. Key feature of the program is its drawing engine written in C and using directly the Xlib drawing primitives; this gives very good speed performance, even on very big circuits. The user interface is built with the Tcl-Tk toolkit, tcl is also the extension language used. Features hierarchical schematic drawings, no limits on size any object in the schematic can have any sort of properties (generics in VHDL, parameters in Spice or Verilog) new Spice/Verilog primitives can be created, and the netlist format can be defined by the user tcl extension language allows the creation of scripts; any user command in the drawing window has an associated tcl comand VHDL / Verilog / Spice netlist, ready for simulation Behavioral VHDL / Verilog code can be embedded as one of the properties of the schematic block, Xschem runs on UNIX systems with X11 and Tcl-Tk toolkit installed. Documentation XSCHEM manual Download Current release Old XSCHEM releases on Sourceforge SVN: svn checkout svn://repo.hu/xschem/trunk License 1 XSCHEM 0.29 Manual and Tutorials The software is released under the GNU GPL, -
Eeschema.Pdf
Eeschema Eeschema ii January 22, 2019 Eeschema iii Contents 1 Introduction to Eeschema 1 1.1 Description ...................................................... 1 1.2 Technical overview .................................................. 1 2 Generic Eeschema commands 3 2.1 Mouse commands ................................................... 4 2.1.1 Basic commands ............................................... 4 2.1.2 Block operations ............................................... 4 2.2 Hotkeys ........................................................ 5 2.3 Grid .......................................................... 7 2.4 Zoom selection .................................................... 7 2.5 Displaying cursor coordinates ............................................. 8 2.6 Top menu bar ..................................................... 8 2.7 Upper toolbar ..................................................... 8 2.8 Right toolbar icons .................................................. 10 2.9 Left toolbar icons ................................................... 11 2.10 Pop-up menus and quick editing ............................................ 11 3 Main top menu 14 3.1 File menu ....................................................... 14 3.2 Preferences menu ................................................... 15 3.2.1 Manage Symbol Library Tables ........................................ 16 3.2.1.1 Add a new library ......................................... 16 3.2.1.2 Remove a library .......................................... 16 3.2.1.3 -
Starting with Geda at the Cambridge University Engineering Department
Starting with gEDA at the Cambridge University Engineering Department July 29, 2005 1 CONTENTS CONTENTS Contents 1 Introduction 6 2 gEDA Manager 9 3 Prerequisite 12 4 First steps with Schematic Capture 14 4.1 Add a component . 14 4.2 Create a component . 15 4.3 Edit the attributes . 17 4.4 Copy the components . 18 4.5 Wire the Schematic . 18 4.6 Add a title border . 19 4.7 Print out the Schematic . 20 5 First steps with PCB Layout 22 5.1 Create a PCB file . 22 5.2 Import the schematic . 23 5.3 Route the PCB . 24 5.4 Print out the PCB . 29 6 First steps with Gerber Viewer 32 6.1 View the gerber files . 32 7 First steps with NGSPICE 35 7.1 Gathering the symbols and the models . 35 7.2 Creating the Schematic . 36 7.3 Generation of the netlist . 38 7.4 Simulate your circuit with NGSPICE . 38 7.5 Simulate your circuit with GSPICEUI . 39 8 Frequently Asked Questions (FAQ) 43 8.1 About Schematic Capture . 43 8.1.1 I can't find the component I need! . 43 8.2 About gsch2pcb . 43 8.2.1 gsch2pcb return “Bad expression”? . 43 8.3 About PCB Layout . 43 8.3.1 My component look weird! . 43 8.3.2 What are the rule to make a PCB? . 43 8.3.3 What If I change my schematic after having created my PCB? . 44 8.3.4 How to route the PCB by hand? . 44 2 CONTENTS CONTENTS 8.4 About Spice . -
Best Free Pcb Cad
Best free pcb cad click here to download Now, before we get into the five best and free PCB design programs, it is to design schematics, you can do no wrong by going with TinyCAD. Do you need a free PCB design software or tool to put in practice the new electronic PCBWeb is a free CAD application for designing and manufacturing. Free PCB CAD Software. This is a comparison of printed circuit board design software. Our criteria for including a PCB CAD program are: There should be a. CircuitMaker is the best free PCB design software by Altium for Open Source Hardware Designers, Hackers, Makers, Students and Hobbyists.Projects · Components · Blog · Hubs. 10 best free pcb designing software open source software download. TinyCAD helps user to draw circuit diagrams and export it as a PCB. Eagle is a very good piece of software. Specifically, the non-free versions scale up to much bigger targets. Meanwhile, you have all of those What is the best free PCB designing application. I always recomment FreePCB, but it lacks one component you Anyone who thinks its the best more than likely hasn't used anything else. The world of PCB CAD software has been very active in recent years – so much so that it's easy to lose track of all the players and products. PCB design: you need a CAD program for your project, but which is best? There are They range from free or inexpensive to high-end/premium. They come. Free CAD Software. Start by downloading our free CAD software.