1st Edition

DC Power Supplies Power Management and Surge Protection for Power Electronic Systems

By Nihal Kularatna Copyright 2012
    428 Pages 252 B/W Illustrations
    by CRC Press

    428 Pages 252 B/W Illustrations
    by CRC Press

    As we increasingly use electronic devices to direct our daily lives, so grows our dependence on reliable energy sources to power them. Because modern electronic systems demand steady, efficient, reliable DC voltage sources—often at a sub-1V level—commercial AC lines, batteries, and other common resources no longer suffice. New technologies also require intricate techniques to protect against natural and manmade disasters. Still, despite its importance, practical information on this critical subject remains hard to find.

    Using simple, accessible language to balance coverage of theoretical and practical aspects, DC Power Supplies, Power Management and Surge Protection details the essentials of power electronics circuits applicable to low-power systems, including modern portable devices. A summary of underlying principles and essential design points, it compares academic research and industry publications and reviews DC power supply fundamentals, including linear and low-dropout regulators. Content also addresses common switching regulator topologies, exploring resonant conversion approaches.

    Coverage includes other important topics such as:

    • Control aspects and control theory
    • Digital control and control ICs used in switching regulators
    • Power management and energy efficiency
    • Overall power conversion stage and basic protection strategies for higher reliability
    • Battery management and comparison of battery chemistries and charge/discharge management
    • Surge and transient protection of circuits designed with modern semiconductors based on submicron dimension transistors

    This specialized design resource explores applicable fundamental elements of power sources, with numerous cited references and discussion of commercial components and manufacturers. Regardless of their previous experience level, this information will greatly aid designers, researchers, and academics who, study, design, and produce the viable new power sources needed to propel our modern electronic world.

    Review of Fundamentals Related to DC Power Supply Design and Linear Regulators
    Introduction
    Simple Unregulated DC Power Supply and Estimating the Essential Component Values
    Linear Regulators
    Low-Dropout Regulators
    Switching Power Supply Topologies and Design Fundamentals
    Introduction
    Why Switch Modes: An Overall Approach
    Basic Switch-Mode Power Supply Topologies
    Applications and Industry-Favorite Configurations
    A Few Design Examples and Guidelines
    Power Semiconductors
    Introduction
    Power Diodes and Thyristors
    Gate Turn-Off Thyristors
    Bipolar Power Transistors
    Power MOSFETs
    Insulated Gate Bipolar Transistor (IGBT)
    MOS-Controlled Thyristor (MCT)
    Resonant Converters and Wireless Power Supplies
    Introduction
    Fundamentals of Resonant Converters
    Resonant DC-DC Converters
    Load Resonant Converters for Contactless Power Supplies
    Control Loop Design of DC-to-DC Converters
    Introduction
    Feedback Control and Frequency Response
    Poles, Zeros, and S-Domain
    Stability Using Bode Plots
    Linear Regulators’ Feedback and Loop Stability Stability Feedback Loop and Stability of Switch-Mode Power Supplies Digital Control Control Modes of Switch-Mode Converters Power Management
    Introduction
    Design Approaches and Specifications
    Specifying DC Power Supply Requirements
    Loading Considerations
    Powering High-Power Processors and ASICs
    Off-the-Line Switching Power Supplies
    Introduction
    Building Blocks of a Typical Off-the-Line Switching Power Supply
    Rectifier Section
    Popular Transformer-Isolated Configurations for Off-the-Line Power Supplies and Industry Approaches
    Magnetic Components
    Output Blocks
    Efficiency Improvements and Synchronous Rectification
    EMI Reduction
    Power Supply Protection
    Age-Related Aspects
    Testing of Power Supplies
    Rechargeable Batteries and Their Management
    Introduction
    Battery Terminology
    Battery Technologies: An Overview
    Lead-Acid Batteries
    Nickel Cadmium (NiCd) Batteries
    Nickel Metal Hydride Batteries
    Lithium-Based Rechargeable Batteries
    Reusable Alkaline Batteries
    Zn-Air Batteries
    Battery Management
    Battery Communication and Related Standards
    Battery Safety
    Future
    Protection of Systems from Surges and Transients
    Introduction
    Types of Disturbances and Power Quality Issues
    Principles of Surge Protection Techniques
    Surge Protection Standards and Practices
    Practical Design Considerations

    Biography

    Nihal Kularatna