A unique system focus that presents specific solutions for specific appliances
This publication presents state-of-the-art power management techniques for modern electronic appliances that rely on such very large-scale integration (VLSI) chips as CPUs and DSPs. The author thoroughly covers all aspects of the field, including semiconductor manufacturing processes, packages, circuits, functions, and systems. A unique and significant contribution to the field, the publication adopts a "system focus" by first presenting the appliance and then delving into the power management architecture and topologies that best serve each appliance.
In addition to specific techniques and applications, the publication discusses fundamental physical and socioeconomic issues. For example, the author examines Moore's law and its effect on power management and heat dissipation, which points to a future breakthrough needed to continue the fast pace of advancement in the high-tech industry.
The author provides a solid technical foundation and an analysis of popular electronic appliances, including:
- Overview of the semiconductor industry
- Plain-English discussion of semiconductor processes and packages
- Step-by-step guide to analog design building from the transistor to higher-level functions, leading to the implementation of a complete voltage regulator
- Popular DC-DC voltage regulation architectures
- AC-DC architectures for power conversion
- Ultra-portable devices, such as cellular phones, PDAs, and digital still cameras
- Desktop and notebook PCs
The publication concludes with a chapter on special power management topics and an expert forecast of future directions for the field. This is essential reading for researchers, engineers, and designers in the semiconductor and integrated circuits industries. With its extensive use of cross-section drawings as well as transistor circuit schematics, this is also a recommended textbook for advanced undergraduate and graduate courses in computer science and electrical engineering.
Table of Contents
1.1 Technology Landscape.
1.2 A Young Industry after All.
2. Power Management Technologies.
2.2 Integrated Circuits Power Technology: Processing and Packaging.
Diodes and Bipolar Transistors.
Metal-Oxide-Semiconductor (MOS) Transistors.
A Monolithic Process Example.
2.3 Discrete Power Technology: Processing and Packaging.
From Wall to Board.
Power MOSFET Technology Basics.
2.4 Ongoing Trends.
PART I. ANALOG CIRCUITS.
Transistor as Transfer-Resistor.
MOS versus Bipolar Transistors.
3.2 Elementary Circuits.
Differential Input Stage.
Differential to Single Input Stage.
3.3 Operational Amplifier (Opamp).
Inverting and Non-Inverting Inputs.
Rail to Rail Output Operation.
Opamp Symbol and Configurations.
DC Open Loop Gain.
AC Open Loop Gain.
3.4 Voltage Reference.
Positive TC of ?VBE.
Negative TC of VBE.
Build a ?VBE.
Building a Voltage Reference.
Fractional Band-Gap Voltage Reference.
3.5 Voltage Regulator.
3.6 Linear versus Switching.
3.7 Switching Regulators.
3.8 Buck Converters.
Switching Regulator Power Train.
Electrolytic Capacitors and Transient Response.
Losses in the Power Train.
The Analog Modulator.
Switching Regulator Block Diagram.
Switching Regulator Control Loop.
Input Inductor LIN.
3.9 Flyback Converters.
PART II. DIGITAL CIRCUITS.
3.10 Logic Functions.
Set-Reset R Flip-Flop.
Current Mode with Anti-Bouncing Flip-Flop.
4. DC-DC Conversion Architectures.
4.1 Valley Control Architecture.
Peak and Valley Control Architectures.
Transient Response of Each System.
Valley Control with FAN5093.
4.2 Monolithic Buck Converter.
A New Design Methodology for Faster Time to Market The Design Cycle.
The Behavioral Model.
Light Load Operation.
Full Load Operation.
4.3 Active Clamp.
4.4 Battery Charging Techniques: New Solutions for Notebook Battery Chargers.
The Smart Battery System.
Battery Charger System.
4.5 Digital Power.
Control Algorithm of Modern Switching Regulators: Analog or Digital?.
Fast Switchmode Regulators and Digital Control.
5. Offline (AC-DC) Architectures.
5.1 Offline Power Architectures.
DC-DC Conversion Down to Low Voltage.
5.2 Power AC Adapter: Thermal and Electrical Design.
Introduction: The Challenge.
AC Adapter Power Dissipation.
AC Adapter Case Temperature.
Active and No-load Operation.
Development of a Solution.
6. Power Management of Ultraportable Devices.
6.1 Power Management of Wireless Computing and Communications Devices.
The Wireless Landscape.
Power Management Technologies for Wireless.
Protection and Fuel Gauging.
Convergence of Cellular Telephone and Handheld.
6.2 Power Management in Wireless Telephones: Subsystem Design Requirements.
Smart Phone Subsystems.
6.3 Powering Feature-Rich Handsets.
Growing Complexity and Shrinking Cycle Time.
Power Management Unit.
Low Dropouts (LDOs).
6.4 More on Power Management Units in Cell Phones.
Barriers to Up-Integration.
PMU Building Blocks.
Low Dropout Block.
The Microcontroller Die.
Microcontroller-Driven Illumination System.
6.5 Color Displays and Cameras Increase Demand on Power Sources and Management.
Digital Still Camera.
7. Computing and Communications Systems.
7.1 Power Management of Desktop and Notebook Computers.
Power Management System Solution for a Pentium III Desktop System.
Power Management System Solution for Pentium IV Systems (Desktop and Notebook).
Powering the Silver Box.
Future Power Trends.
7.2 Computing and Data Communications Converge at the Point of Load.
The Proliferation of Power Supplies.
Telecom Power Distribution.
Computing Power Distribution.
Multiphase Buck Converter for POLs and VRMs.
7.3 Efficient Power Management ICs Tailored for DDR-SDRAM Memories.
DDR Power Management Architecture.
Worst Case Current Consumption.
Average Power Consumption.
Linear versus Switching.
Second Generation DDR-DDR2.
FAN5236 for DDR and DDR2 Memories.
7.4 Power Management of Digital Set-Top Boxes.
Set-Top Box Architecture.
High Power Set-Top Boxes.
Low Power Set-Top Boxes.
7.5 Power Conversion for the Data Communications Market.
Current Environment with Separate Networks.
Migration to Converged Voice/Data/Video IP.
Telecom -48 V DC Power Distribution.
Datacom AC Power Distribution.
8. Future Directions and Special Topics.
8.1 Beyond Productivity and Toys: Designing ICs for the Health Care Market.
8.2 Power Management Protocols Help Save Energy.
Motherboard (DC-DC) Voltage Regulators.
Offline (AC-DC) Voltage Regulators with Power.
Factor Correction (PFC).
Green Power (Energy Management).
New Low Power System Requirements.
8.3 Heat Disposal in Electronics Applications.
Active versus Passive Cooling.
Limits of Passive Cooling.
Active Cooling-Yes or No?.
Active Cooling Implementation.
8.4 Web Based Design Tools.
The Tools on the Web.
8.5 Motor Drivers for Portable Electronic Appliances.
Motors and Motor Drivers.
DSC Power Consumption.
A. Fairchild Specifications for FAN5093.
B. Fairchild Specifications for FAN4803.
C. Fairchild Specifications for FSD210 and FSD200.
D. Fairchild Specifications for FAN5307.
E. Fairchild Specifications for ACE1502.
F. Fairchild Specifications for FAN5236.
G. Fairchild Specifications for FAN8702.