This course teaches how to design a feedback system to control a switching converter. The equivalent circuit models derived in the previous courses are extended to model small-signal ac variations. These models are then solved, to find the important transfer functions of the converter and its regulator system. Finally, the feedback loop is modeled, analyzed, and designed to meet requirements such as output regulation, bandwidth and transient response, and rejection of disturbances.
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Upon completion of this course, you will be able to design and analyze the feedback systems of switching regulators.
This course assumes prior completion of course Introduction to Power Electronics and Converter Circuits.
Course 3 of 4 in the Power Electronics Specialization.
Syllabus
WEEK 1
Ch 7: AC Equivalent Circuit Modeling
How to extend the converter steady-state equivalent circuits, derived in the previous courses, to obtain small-signal ac equivalent circuits that model the important converter and regulator system dynamics.
WEEK 2
Ch 8: Converter Transfer Functions - Part 1
A review of the construction of Bode plots of the magnitude and phase of first-order, second-order, and higher-order transfer functions, with emphasis on techniques needed for design of regulator systems. Design-oriented analysis techniques to make approximations and gain insight into how to design ac systems having significant complexity.
WEEK 3
Ch 8: Converter Transfer Functions - Part 2
Design-oriented analysis techniques to make approximations and gain insight into how to design ac systems having significant complexity. Graphical construction techniques.
WEEK 4
Ch 9: Controller Design
Application of the material of Chapters 7 and 8 to design closed-loop regulators that employ switching converters. How to design a feedback system that accurately regulates its output while rejecting disturbances.
