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Power Management in Mobile Devices - 1st Edition - ISBN: 9780750679589, 9780080556406

Power Management in Mobile Devices

1st Edition

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Author: Findlay Shearer
Paperback ISBN: 9780750679589
eBook ISBN: 9780080556406
Imprint: Newnes
Published Date: 7th December 2007
Page Count: 336
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Description

Sealed Lead Acid…Nickel Cadmium…Lithium Ion… How do you balance battery life with performance and cost? This book shows you how!

Now that "mobile" has become the standard, the consumer not only expects mobility but demands power longevity in wireless devices. As more and more features, computing power, and memory are packed into mobile devices such as iPods, cell phones, and cameras, there is a large and growing gap between what devices can do and the amount of energy engineers can deliver. In fact, the main limiting factor in many portable designs is not hardware or software, but instead how much power can be delivered to the device. This book describes various design approaches to reduce the amount of power a circuit consumes and techniques to effectively manage the available power.

Power Management Advice On: •Low Power Packaging Techniques •Power and Clock Gating •Energy Efficient Compilers •Various Display Technologies •Linear vs. Switched Regulators •Software Techniques and Intelligent Algorithms

Key Features

  • Addresses power versus performance that each newly developed mobile device faces
  • Robust case studies drawn from the author's 30 plus years of extensive real world experience are included
  • Both hardware and software are discussed concerning their roles in power

Readership

RF/wireless engineers and designers, Engineers designing mobile devices such as PDAs and games; Engineering managers, Graduate students

Table of Contents

  1. Introduction to Power Management in Portable Personal Devices
    1. Power Trends
    1. Mobile Devices and Applications
  2. 2.1. Cellular Phones
  3. 2.2. Portable Media Players
  4. 2.3. Portable Digital Audio Players
  5. 2.4. Portable Navigation Devices
    1. Cellular Handsets – Deeper Dive
  6. 3.1. Cellular System Overview
  7. 3.2. Evolution of Cellular Systems
  8. 3.3. Cellular Handset Teardown
  9. 3.4. Seamless Mobility - Connectivity
    1. Summary
  10. Chapter 2 – Hierarchical View of Energy Conservation
    1. Issues and Challenges
  11. 1.1. Closing the Technology Gaps
  12. 1.2. Always On, Always Connected – Paradox of the Portable Age
  13. 1.3. Balancing Battery Life with Performance and Cost
    1. Power versus Energy Types
  14. 2.1. The Elements Power Consumption
  15. 2.2. Elements of Dynamic and Static Power
    1. Hierarchy of Energy Conservation Techniques
    1. Low Power Process and Transistor Technology
  16. 4.1. Process Technology Scaling
  17. 4.2. Transistors and Interconnects
    1. Low Power Packaging Techniques
  18. 5.1. Introduction
  19. 5.2. Systems-in-Package (SiP
  20. 5.3. Package-on-Package
  21. 5.4. SiP versus PoP
    1. Summary
  22. Low Power Design Techniques, Design Methodology and Tools
  23. 1.1. Dynamic Process Temperature Compensation
  24. 1.2. Static Process Compensation
  25. 1.3. Power Gating
  26. 1.4. State Retention Power Gating
    1. Low Power Architectural and Subsystem Techniques
  27. 2.1. Clock Gating
  28. 2.2. Asynchronous Techniques - GALS
  29. 2.3. Power Saving Modes
    1. Low Power SoC Design Methodology, Tools and Standards
  30. 3.1. Introduction
  31. 3.2. Low Power Design Process
  32. 3.3. Key EDA Vendors Approach to Low Power Design
  33. 3.4. Low Power Format Standards
    1. Summary
  34. Energy Optimized Software
    1. Mobile Software Platform
  35. 1.1. Modem Software
  36. 1.2. Application Software
  37. 1.3. Operating Systems for Mobile Devices
  38. 1.4. Why an Operating System? Application Execution Environment
    1. Energy Efficient Software
  39. 2.1. Dynamic Power Management
  40. 2.2. Energy Efficient Compilers
  41. 2.3. Application Driven Power Management
  42. 2.4. Advanced Power Management (APM)
  43. 2.5. Advanced Configuration and Power Interface
  44. 2.6. The Demand for Application-Driven Power Management
    1. Summary
  45. Batteries and Displays for Mobile Devices
    1. Introduction
  46. 1.1. Battery Challenge
  47. 1.2. Evolution of Battery Technology
    1. Battery Fundamentals
    1. Battery Technologies
  48. 3.1. Sealed Lead Acid (SLA)
  49. 3.2. Nickel Cadmium (Ni-Cad)
  50. 3.3. Nickel Metal Hydride (Ni-MH)
  51. 3.4. Lithium Ion (Li-Ion)
  52. 3.5. Lithium-ion Polymer (Li-Poly)
  53. 3.6. Other Lithium Ion Types
    1. Battery Chemistry Selection
    1. Portable Device Display Technologies
  54. 5.1. Mobile Device Power Distribution
  55. 5.2. Backlights
  56. 5.3. Display Technologies
    1. Low Power LCD Display Techniques
  57. 6.1. Dynamic Luminance Scaling
  58. 6.2. Extended DLS (EDLS)
  59. 6.3. Backlight Autoregulation
  60. 6.4. Frame buffer compression
  61. 6.5. Dynamic Color Depth
    1. Summary
  62. 7.1. Batteries
  63. 7.2. Displays
  64. Power Management Integrated Circuits
    1. Introduction
    1. Voltage Regulators
  65. 2.1. Introduction
  66. 2.2. Linear Regulators
  67. 2.3. Switching Regulators
  68. 2.4. Linear vs Switched
    1. Battery Management - Fuel Gauages, Charging, Authentication
  69. 3.1. Fuel Gauges
  70. 3.2. Battery Charge Management
  71. 3.3. Li-Ion battery safety
  72. 3.4. Battery Authentication
  73. 3.5. Example of a Battery Management Unit (BMU) and Battery Protection
    1. Power Management Integrated Circuits plus ?
    1. Summary
  74. System Level Approach to Energy Conservation
    1. Introduction
    1. Low Power System Framework
  75. 2.1. Advanced Energy-Management Solution
  76. 2.2. Software for Self Optimizing Systems
    1. Low Power System/Software Techniques
  77. 3.1. Dynamic Frequency Scaling
  78. 3.2. Dynamic Voltage Scaling (DVS)
  79. 3.3. Dynamic Process and Temperature Compensation (DPTC)
  80. 3.4. Handling Idle Modes
    1. Software Techniques and Intelligent Algorithms
  81. 4.1. Operating System
  82. 4.2. Typical DVFS Algorithm
  83. 4.3. Scope within Wireless Applications
    1. Freescale’s XEC - Technology-Specific Intelligent Algorithms
  84. 5.1. XEC Framework
    1. ARM’s Intelligent Energy Manager (IEM)
    1. National Semiconductors: PowerWise™ Technology
    1. Energy Conservation Partnership
    1. Texas Instruments: SmartReflex
  85. 9.1. Silicon IP
  86. 9.2. System-on-a-chip
  87. 9.3. System software
    1. Intel SpeedStep
    1. Transmeta LongRun and LongRun2
    1. Mobile Industry Processor Interface – System Power Management (SPM)
    1. Summary
  88. Future Trends in Power Management
    1. Converged Mobile Devices
    1. Future Processes
  89. 2.1. Nanotechnology and Nanoelectronics
  90. 2.2. Quantum Computing
  91. 2.3. Micro Electrical and Mechanical Systems (MEMS)
  92. 2.4. Biological (DNA)
    1. Future Packaging for Mobile Devices
  93. 3.1. System Packaging Evolution
  94. 3.2. Redistributed Chip Packaging
  95. 3.3. System-on-Package
    1. Future Sources of Energy for Mobile Devices
  96. 4.1. Fuel Cells
    1. Future Displays for Mobile Devices
  97. 5.1. Electronic Paper Displays
    1. Summary
  98. 6.1. References

Details

No. of pages:
336
Language:
English
Copyright:
© Newnes 2008
Published:
7th December 2007
Imprint:
Newnes
Paperback ISBN:
9780750679589
eBook ISBN:
9780080556406

About the Author

Findlay Shearer

Affiliations and Expertise

Senior Product Manager, Freescale Semiconductor, Texas, USA

Awards


Intel Recommended Reading List for Developers, 1st Half 2013 – Books for Hardware Developers, Intel

Intel Recommended Reading List for Developers, 2nd Half 2013 – Books for Hardware Developers, Intel

Intel Recommended Reading List for Developers, 1st Half 2014 – Books for Hardware Developers, Intel

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