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COURSE DESCRIPTION

EET 452: Feedback Controls

Credits and Contact Hrs. (Lecture/Laboratory): 3 credits, 3 contact hours per week. 

Course Description: Study of signal flow, circuit stability. Nyquist criteria, Bode plots, oscillators, amplifiers, and electromechanical devices.  

Prerequisites/ Co-requisites: EET 306 / None 

Textbook: Borgart, T. Jr.; Laplace. Transforms and Control Systems Theory for Technology. 1st Edition, Wiley Pub. Co., 1982. 

Reference(s): None 

Course Coordinator: Joseph M. Farren, Professor  

Goals/Objectives: To introduce the student to various principles and mathematical concepts used in the analysis and design of automatic closed loop control systems. 

Course topics and lecture hours devoted to each topic:

  • Introduction/review of Laplace Transforms and their application to circuit analysis. Frequency response curves using Bode plots will also be studied. In addition to electronic circuits mechanical circuits will be studied. It will be shown how to construct system block diagrams from various electronic and mechanical circuits. (7.5 hrs.)
  • Introduction to Control System Theory. The concepts necessary for the construction and analysis of system block diagrams and signal-flow diagrams will be studied. These concepts will include transfer functions, summers and analysis of open and closed-loop systems. (8.5 hrs.)
  • Various electronic/mechanical systems will be constructed and analyzed. (2 hrs.)
  • System stability and compensation will be studied. This study will include Gain and Phase Margins, Nyquist criterion and Root Locus analysis. (5.5 hrs.)
  • Introduction to analog implementation of control systems. This will require an analog solution to differential equations via operational amplifiers. (3 hrs.)
  • Introduction to digital and microprocessor solutions to analogy control systems. (4.5 hrs.)
  • Tests. (4 hrs.) 
    •

    Computer usage: A PC will be used to run: Math programs, Root Locus plots programs, Stability criteria programs. PID simulation for microprocessor solution. 

    Laboratory projects: None 

    Oral and written communication requirements: None 

    Calculus usage: Differential equations. 

    Library usage: None