ECE: Electrical & Computer Engineering
Accredited by ABET
Undergraduate Programs

ECE 4405 Control Systems


Spring 2014 textbook list

The Spring 2014 ECE textbook list is available online for students.

Current Prerequisites & Course Offering

For current prerequisites for a particular course, and to view course offerings for a particular semester, see the Virginia Tech Course Timetables.

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ECE 4405 Control Systems (3C)

Introduction to the design of feedback compensation to improve the transient and steady-state performance of systems. Course covers modeling techniques, root locus analysis and design, Nyquist criterion, and frequency domain compensation.

What is the reason for this course?

These courses form the basis of control system design. They build on the general system background introduced in ECE 3704 and develop in detail the area of system analysis concerned with control systems.

Typically offered: Fall. Program Area: Systems/Controls.

Prerequisites: C- or better in 3704.

Why are these prerequisites or corequisites required?

The following material from 3704 is required for 4405.

  • Laplace Transforms
  • Transfer functions/System representation
  • Block diagram analysis
  • System stability
  • Department Syllabus Information:

    Major Measurable Learning Objectives:
    • model controlled systems in continuous time;
    • analyze control systems using root locus and frequency domain techniques;
    • design compensators for improved transient and steady-state performance of the closed-loop system.

    Course Topics
    Topic Percentage
    Introduction to Control Systems; Transfer Functions, Block Diagrams, Stability 5%
    Modeling Dynamic Systems 10%
    Introduction to state space 10%
    Standard Second Order Systems 10%
    PID Controllers 5%
    Root Locus 25%
    Construction Rules
    Compensator Design
    Nyquist Stability Criteria 10%
    Gain/Phase Margins and Lead-Lag Compensation 15%
    Sensitivity and Robustness 10%

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