ECE 6615 PD

Summary

The objective of this course is to expand the knowledge and expertise of practicing engineers in the area of DC/DC converters. The course will focus on the modeling and design of DC/DC converters, including magnetic design and loop design, and their applications in DC motor drives, DC power supplies, power factor correction circuits, photovoltaic stand-alone and grid-connected systems and fuel cell-based stationary and mobile systems.

Objectives

Learn about DC/DC converter topologies, control techniques, and applications.
Learn about modeling and design aspects of DC/DC converters.
Learn about magnetic design and loop design for DC/DC converters.

Major topics

DC/DC Converter Topologies and Control Techniques
Modeling and Design Aspects of DC/DC Converters
Magnetic Design and Loop Design for DC/DC Converters

Detailed plan

Topic	No. of Lecture Sessions	Sub-Topics
Overview of Semiconductor Devices, Waveform Quality, and Low-Pass Filters	1	Characteristics of Diodes, Thyristors and Controllable Switches, Switch Losses Waveform Distortion and Harmonics, Quality Indices Input and Output Low-Pass Filter Design
Non-Isolated DC/DC Converter Topologies and Control Techniques	2	Buck Converter Synchronous-Rectifier Buck Converter Boost Converter, Buck-Boost Converter, Cuk Converter Full-Bridge (Bidirectional) DC/DC Converter Topology Selection Control Techniques: Hysteresis, Pulse-Width Modulation Interleaving of Converters, Worst-Case Design, Applications
DC/DC Converter Modeling	1	Average Modeling Technique State-Space and Transfer Function Representations Stability Issues
Isolated DC/DC Converter Topologies and Control Techniques	2	Need for Electrical Isolation Flyback Converter, Forward Converter, Push-Pull Converter Half-Bridge Converter, Full-Bridge Converter High-Frequency-Link DC/DC Converter Phase-Shift Modulation Technique Multi-Output DC/DC Converter DC Power Supplies, Practical Considerations
Feedback Control of DC/DC Converters	1	Feedback Control of DC/DC Converters: Objectives Feedback Controller Design in Voltage-Mode Control Feedback Controller Design in Current-Mode Control
Front-End Diode- Rectifier Bridge Circuits and Power Factor Correction	1	Front-End Types in Power Electronic Circuits Front-End Diode-Rectifier Bridge, Starting Transient Inrush Current, Single-Phase Power Factor Correction (PFC) Design of Inner and Outer Current-Control Loops Feedforward of the Input Voltage
Snubber Design and Soft Switching	1	Hard-Switching: Practical Issues Snubber Circuits: Benefits and Design Soft-Switching: Benefits and Limitations
Magnetic Design	1	Overview of Basics of Magnetics, Leakage and Magnetizing Inductances, Transformers, Basics of Magnetic Design Inductor and Transformer Structures Area-Product Method, Design Examples
Design Aspects of DC/DC Converters	1	Thermal Management Parallel Connection of Switches
Other DC/DC Converter Applications	1	DC Motor Drives Photovoltaic Stand-Alone and Grid-Connected Systems Fuel Cell-Based Stationary and Mobile Systems

References

Mohan, Undeland and Robbins, Power Electronics: Converters, Applications, and Design, 3rd Edition, John Wiley & Sons, Inc., 2003.
D.W. Hart, Introduction to Power Electronics,, Prentice Hall, 1997.
J.G. Kassakian, M.F. Schlecht and G.C. Verghese, Principles of Power Electronics, Addison-Wesley Publishing Company, Inc., 1992.
P.T. Krein, Elements of Power Electronics, Oxford University Press, Inc., 1998.
R.P. Severns and G.E. Bloom, Modern DC-To-DC Switch Mode Power Converter Circuits, Van Nostrand Reinhold, 1985.
K. Kit Sum, Switch Mode Power Conversion: Basic Theory and Design, Marcel Dekker, Inc., 1984.

Prerequisites