As circuits and systems become more complex, the design and test issues become increasingly difficult to manage without advanced computer-aided design (CAD) tools. The current motivations for the implementation of SoCs (reduced weight, size, power consumption) emphasize these difficulties. One of the key underlying necessities of any design platform is the availability of adequate models for the components being used in the designs. This need is felt both by designers of SoCs who need models for verification prior to fabrication and, more and more, by customer demand for fast, efficient simulation models that can be used to evaluate and integrate components into their final products. These models thus serve as an "executable datasheet" that drives demand for products in increasingly competitive spaces such as power conversion ICs.
Presented is an approach to generating extremely fast, efficient datasheet-driven models for a class of circuit both in high commercial demand and very difficult to simulate at the transistor level: switching converters. The presentation will begin with background on state of the art switching converters from Texas Instruments. The difficulties in modeling these components will be highlighted, and the use of fast averaged models introduced. Performance of these models will be compared with existing transient models, and an automated method for generating both Verilog-A and PSpice averaged models from datasheet information will be presented. Finally, an improved large signal PWM averaged model with high fidelity in AC and transient response will also be proposed.
H. Alan Mantooth (S'83 - M'90 - SM'97 – F’09) received the B.S. (summa cum laude) and M. S. degrees in electrical engineering from the University of Arkansas in 1985 and 1987, respectively, and the Ph.D. degree from the Georgia Institute of Technology in 1990. He joined Analogy in 1990 where he focused on semiconductor device modeling and the research and development of HDL-based modeling tools and techniques. In 1998, he joined the faculty of the Department of Electrical Engineering at the University of Arkansas, Fayetteville, as an Associate Professor. He helped establish the National Center for Reliable Electric Power Transmission (NCREPT) at the UA in 2005, for which he serves as director. His serves as the Executive Director for NCREPT as well as two of its constitutive centers of excellence: the NSF I/UCRC on GRid-connected Advanced Power Electronic Systems (GRAPES) and the NSF Vertically-Integrated Center on Transformative Energy Research (VICTER). In 2006, he was selected as the inaugural holder of the 21st Century Endowed Chair in Mixed-Signal IC Design and CAD. He has published over 200 refereed articles and three books on modeling, power electronics and IC design. He is a Fellow of IEEE, a member of Tau Beta Pi and Eta Kappa Nu, and registered professional engineer in Arkansas.