PESC '99 Tutorials

Sunday June 27, 1999

8:00 am
to
11:30 am

Advances in Averaged Switch Modeling and Simulation

Dragan Maksimovic, University of Colorado, Boulder

In this tutorial, we show how averaged-switch modeling approach can be applied consistently not only to basic two-switch converter topologies in both continuous and discontinuous conduction modes, but also to more complicated examples including multiple-output converters, current-more regulators and power factor correctors. Analytical, simulation and experimental results are presented for a number of power electronic systems. A library of large-signal PSpice models and simulation examples used in the tutorial will be available to attendees.

Design of Three Phase Rectifier Systems With Clean Input Power Characteristics

Prasad Enjeti, Texas A&M University
Ira J. Pitel, Magna-Power Electronics

The objective of this tutorial is to present several three phase advanced power factor correction and harmonic reduction approaches for utility interface of power electronic converters. Several active and passive harmonic reduction methods for three phase rectifier systems will be presented. Several low kVA/cost active/passive schemes to realize clean input power will be presented with industry examples. Power electronic design engineers who deal with three phase power conversion such as: adjustable speed ac motor drive systems, switch mode converters, UPS, Battery chargers, rectifiers in electro-plating, Induction heating systems, 50/60/400 Hz power converters etc. will find this course informative and new knowledge gained in this seminar can be immediately applied.

13:30 to
17:00

Winding Design For High-Frequency Magnetics

Rudy Severns, Springtime Enterprises, Inc.

The use of increasingly higher switching frequencies in modern power electronics equipment has had a direct impact on the design of magnetic components. There are many differences between high and low frequency magnetics that must be taken into account in any successful design. This tutorial will provide an overview of the differences and their practical impact on winding design for magnetics. The presentation will include variations on traditional computational techniques and a critical examination of range of validity. Practical guidelines for minimizing winding losses will be given.