Feedback System 2026 Concordia University
Lab 4:
Time Response of a Second-Order DC Motor Unit Feedback System
Lab Section EI – X
Winter 2025
Professor Christopher Yee Wong
Concordia University
Montreal, QC, Canada
,CONTENTS
LIST OF FIGURES ........................................................................................................ 3
OBJECTIVE ............................................................................................................... 4
INTRODUCTION ........................................................................................................ 4
PROCEDURE ............................................................................................................. 8
RESULTS .................................................................................................................. 9
EXPERIMENTAL ...................................................................................................... 9
SAMPLE CALCULATIONS ....................................................................................... 10
SIMULINK ............................................................................................................ 13
SIMSCAPE ........................................................................................................... 16
DISCUSSION ........................................................................................................... 19
CONCLUSION .......................................................................................................... 20
REFERENCES .......................................................................................................... 20
, LIST OF FIGURES
Figure 3-1: Schematic circuit
Figure 4-1: Preliminary block diagram
Figure 4-3: Transient time response specifications
Figure 4-5: Step time response example
Table 4-1: Gain to KP calibration from experiment 3
Table 4-2: Experiment 4 tabulated results
Figure 4-7: Experimental result of the time and frequency response of the DC motor with a gain of 3
Figure 4-8: Experimental result of the time and frequency response of the DC motor with a gain of 5
Table 4-3: Calculated values from experiments 1 and 2
Figure 4-9: Script for Simulink and Simscape Responses
Figure 4-10: Simulink Response
Figure 4-11: Simulink Response for Gain 3-4
Figure 4-12: Simulink Response for Gain 5-6
Figure 4-13: Simscape Response
Figure 4-14: Simscape Response for Gain 3-4
Figure 4-15: Simscape Response for Gain 5-6