1st Edition
Practical Computer Analysis of Switch Mode Power Supplies
When designing switch-mode power supplies (SMPSs), engineers need much more than simple "recipes" for analysis. Such plug-and-go instructions are not at all helpful for simulating larger and more complex circuits and systems. Offering more than merely a "cookbook," Practical Computer Analysis of Switch Mode Power Supplies provides a thorough understanding of the essential requirements for analyzing SMPS performance characteristics. It demonstrates the power of the circuit averaging technique when used with powerful computer circuit simulation programs.
The book begins with SMPS fundamentals and the basics of circuit averaging models, reviewing most basic topologies and explaining all of their various modes of operation and control. The author then discusses the general analysis requirements of power supplies and how to develop the general types of SMPS models, demonstrating the use of SPICE for analysis. He examines the basic first-order analyses generally associated with SMPS performance along with more practical and detailed methods for developing SMPS and component models. The final chapter features the circuit-averaging macromodel of the integrated circuit PWM controller illustrated through analyses of three power supplies.
Practical Computer Analysis of Switch Mode Power Supplies builds a strong foundation on the principles of SMPS analysis, enabling further development and advancement of the techniques while supplying meaningful insight into the process.
Basic Topologies
Basic Control Methods
Conclusion
SMPS ANALYSIS REQUIREMENTS
DC Requirements
AC Requirements
Transient Requirements
Summary
FUNDAMENTAL SWITCH MODE CONVERTER MODEL DEVELOPMENT
Buck and Boost Converter Continuous Mode Large Signal Models
Buck and Boost Converter Discontinuous Mode Large Signal Models
Buck and Boost Continuous and Discontinuous Mode Unified Models
Buck-Boost (Flyback) Converter Continuous Mode Large Signal Model
Buck-Boost (Flyback) Converter Discontinuous Mode Large Signal Model
Buck-Boost Continuous and Discontinuous Mode Unified Model
Cuk Converter Continuous Mode Large Signal Model
Cuk Converter Discontinuous Mode Large Signal Model
Cuk Converter Continuous and Discontinuous Mode Unified Model
Boost Converter Model Analysis Example
Summary
ANALYZING THE FUNDAMENTAL SMPS MODEL
Buck Converter SMPS Analysis (Voltage Mode)
Buck Converter SMPS Analysis (Current Mode)
Summary
SMPS COMPONENT MODELS
Component Model Development
Parasitic Resistance Effects
Peripheral Circuit Additions
Summary
ANALYZING THE ADVANCED SMPS MODEL
Pulse Width Modulator (PWM) Controller Macromodel
Practical Flyback SMPS Analysis
Practical Buck SMPS Analysis with Parasitic Resistances
Practical "Loop-Opening" Techniques for AC Analysis
Buck SMPS Soft Start and "Hiccup" Current Limit Analysis
Summary
APPENDIX A: DESIGN FUNDAMENTALS OF SMPS INPUT FILTERS
General Requirements
Fundamental Single-Stage LC Section Examples
Parallel Damped Single-Stage Input Filter
Series Damped Single Stage Input Filter
Two-Stage Input Filter Design
APPENDIX B: PULSE WIDTH MODULATOR CONTROLLER MACROMODELING
UC 1844 Circuit-Averaging Macromodel Development
UC 1825A Circuit-Averaging Macromodel Development
REFERENCES
INDEX
Biography
Bennett, Johnny C.
