EE-61
Electric Circuits Laboratory
with an Introduction to Wireless Control
Duke University
Department of Electrical and Computer Engineering
Version 1.0: Fall 1994
Version 1.1: Spring 1995
Version 1.2: Fall 1995
Gary A. Ybarra, Ph.D., Director
and
Christopher E. Cramer, Coordinator

• Contents
• Introduction
  • General Laboratory Operating Procedures
  • Laboratory Reports
  • PSpice Results Presentation
  • Acknowledgment
• Lab 1 - Operation of Analog Instruments
• Lab 2 - Operation of the Digital Instruments and Basic Measurements
  • Purpose
  • DC Power Supply
  • Function Generator
  • Digital Multimeter
  • Oscilloscope
  • Discussion: Methods of Measurement
  • Experiment - DC Measurements
  • Experiment - Resistance Measurement
    • Graphite Resistor
    • Measuring the Resistance of Your Body
  • Experiment - Current and Ohm's Law
  • Experiment - Ideal vs. Practical Voltmeter and Ammeter
    • Voltmeter
    • Ammeter
  • Measurement of Time Varying Sources
  • Questions to be Answered
  • PSpice
    • Basic PSpice information
    • Procedure
• Lab 3 - Kirchhoff's Laws and Basic Instrumentation
  • Purpose
  • Prototyping a Circuit
  • Using the Breadboard
  • Using the Multimeter as a Voltmeter
    • Voltage Divider with Moderate-Valued Resistors
    • Voltage Divider with Large-Valued Resistors
  • Using the Multimeter as an Ammeter
    • Current Divider with Moderate-Valued Resistors
    • Current Divider with Small-Valued Resistors
  • PSpice
  • Questions to be answered
• Lab 4 - Thevenin's Theorem
• Lab 5 - Operational Amplifiers
  • Purpose
  • Operational Amplifier
  • Op Amp Symbol
  • Op Amp Configuration
    • Inverting Amplifier
    • Non-inverting Op Amp
  • Op Amp as a Comparator
  • Experimental Procedure
    • Power supply
    • Inverting Amplifier
    • Non-Inverting Amplifier
    • Comparator
  • Project Procedure (To Be Done on Project Board)
  • PSpice
  • Questions
• Lab 6 - Exploring the Servomotor Controller Circuit
  • Purpose
  • Servomotor
  • Components of the Servomotor Controller Circuit
    • 555 Timer
    • J-K Flip Flop
    • Comparator 1: Used as a Level Shifter
    • Integrator
    • Comparator 2
  • Experimental Procedure
    • Setup
    • Black Box: Input and Output
    • Signal Analysis
  • PSpice
  • Questions
• Lab 7 - Assembly of the Transmitter and Receiver Circuits
  • Purpose
  • Soldering
  • Construction of the Transmitter Circuit
    • Soldering leads to the switch
    • LED Current Limiter Design
    • Winding the Transmit and Receive Coils
    • Rectifier and Smoothing Circuit
• Lab 8 - Testing the Transmitter-Receiver System
  • Purpose
  • Review of the Transmitter-Receiver System
  • Diode Theory
    • Basic Diode Theory
    • Physical Diode Theory
  • Measuring the I-V Characteristic of a Diode
    • Procedure for Measuring the I-V Characteristic of the LED
  • Testing the LED Indicator Circuit
  • Testing the Transmitter and Receiver
  • Questions to be Answered
• Lab 9 - System Integration and Testing
  • Purpose
  • GFCI Demonstration
  • Integrating the Amplifier
  • Connecting the Circuits
  • Measuring the Output of the Amplifier
  • The Servo Controller
  • Questions
• Lab 10 - Frequency Response of Filter Circuits
  • Purpose
  • Frequency Domain Representation
    • Reasons for Frequency Response Analysis
    • Filters
  • Frequency Response
  • LabVIEW and the Frequency Response Virtual Instrument (VI)
    • LabVIEW Software Overview
    • Frequency Response Virtual Instrument
    • Initial Test of the Frequency Response VI
      • Initial Test Procedure
  • Frequency Response of an RC Lowpass Filter
    • Derivation of the Frequency Response
    • Measurement of the Frequency Response
  • Frequency Response of a Bandpass Filter (BPF)
  • PSpice
    • Lowpass Filter Circuit
    • Bandpass Filter Circuit
  • Questions
• About this document ...