Course Details
Contents
Part-1 (DC-DC Power Converters)
Linear regulators – Primitive switched mode converter – General principles of steady state analysis – Buck, Boost, Buck-boost and Cuk topologies – Operation in CCM and DCM – Isolated converters – Forward and flyback converter topologies – PWM techniques – Transient analysis – State space averaging – Small signal modeling for dc-dc converters – Closed loop controller design
Part-2 (Power Converter Components)
Review of semiconductor device characteristics – Power electronic switches: Diodes, IGBTs, MOSFETs – Switching Transitions – Power losses and thermal considerations – Selection of heat sinks – Loss characterisation with DP tests – Understanding and interpreting device datasheets – Snubber circuits – Designing gate drivers for MOSFETs and IGBTs – High side and low side driver circuits – Introduction to WBG devices (SiC and GaN) – Third quadrant operation of GaN HEMTs
Magnetics design – Maxwell’s equations with magnetic approximation – Core shapes, materials and magnetic properties – Inductor design constraints – Sizing equations – Design example – Magnetic Losses, Skin and proximity effects – Transformer design equations – Capacitors – Types and characterisitcs, ESR and ESL effects
Part-3 (AC-DC and DC-AC Power Converters)
Uncontrolled and controlled rectifiers – Six pulse rectifier – PFC Boost Rectifier and control techniques – Bridgeless PFC topologies – Vienna Rectifier – 2-level Voltage Source Inveters: 1-phase and 3-phase – Sine triangle PWM – Unipolar and bipolar modulation – Averaged model and switching model – Space vector PWM techniques
Part-4- (Miscellaneous topics)
EMI issues – Common mode noise and filter designs - Control hardware – Voltage and current sensor circuits - Converter faults and protection circuits – PCB design fundamentals – Power loop optimisation – Parasitic effects – Gate driver layouts – Case studies: Good and bad layouts
Instrumentation for power electronics: Critical specifications for DSOs – Types of current and voltage sensors and probes – Performance parameters
References
1. Erickson, Robert W. and Maksimovic, Dragan. Fundamentals of Power Electronics. 2ed : Springer, 2001.
2. Mohan, Ned, Tore M. Undeland, and William P. Robbins. Power electronics: converters, applications, and design. New York: Wiley, 1995.
3. Krein, Philip T. Elements of power electronics. New York: Oxford University Press, 1998.
4. Kassakian, J. G., Perreault, D. J., Verghese, G. C., & Schlecht, M. F. Principles of Power Electronics. Cambridge University Press, 2023.