Power Management Technical Articles from National Semiconductor Home->Power Management

Power Management Design Articles

 

Display and LED Power Supply Design

Title Author Publication Publication Date
Things to Keep in Mind When Designing Power Management Circuitry Travis Eichhorn EETimes / Embedded.com 10/20/09
High-Performance LED Flash for Camera Phones Dario Nurzad & Humair Khan Mobile Handset DesignLine 8/10/09
Inductive-Boost WLED Drivers for Handhelds Dario Nurzad Electronic Products 8/3/09
Hybrid Control Techniques Drive Different LED Applications James Patterson LEDs Magazine 8/3/09
A Fail-Safe Approach to LEDs
Choose the right high-brightness LED & protect it from over-temperature
Jeff Perry EDN 4/9/09
LED Lighting And Light Pollution Joe DeNicholas Electronic Design 3/26/09
Driving High-Power LEDs in SeriesParallel Arrays Chris Richardson EDN 11/27/08
Driving LEDs in the Automotive World Eric Hoyt LED Journal 11/08
Display Interfacing – Moving Beyond the Pixels James E. Schuessler Information Display 10/08
Brainstorm: Solid State Lighting vs. Incandescent Joe Denicholas ECN 10/08
A Matter of Light, Part 1--The ABC's of LEDs Sameh Sarhan & Chris Richardson Power Management DesignLine 05/08
A Matter of Light, Part 2--Buck Whenever Possible Sameh Sarhan & Chris Richardson Power Management DesignLine 05/08
A Matter of Light, Part 3--When to Buck & Buck-Boost Sameh Sarhan & Chris Richardson Embedded.com 05/08
A Matter of Light, Part 4--PWM Dimming Sameh Sarhan & Chris Richardson Power Management DesignLine 06/08
LED Backlighting for LCDs Requires Unique Drivers Tomi Koskela Power Electronics Technology 05/12/08
Backlight LED Driver System in Small Format Liquid Crystal Display Dario Nurzad Portable Design 05/08
Methods and Features of LED Drivers Akira Takahashi Electronic Products 03/08
Want to Boost Battery Voltage in White LED Apps? Dario Nurzad Mobile Handset Designline 03/31/08
The multiple challenges involved in flash LED driver selection--and how to solve them Greg Lubarsky Mobile Handset Designline 03/31/08
Matching Driver to LED Chris Richardson Photonics Spectra 01/08
Solid State Lighting Brainstorm Sameh Sarhan ECN 12/1/07
Taming the Boost: Predicting and Measuring Feedback Loops in Current-mode Boost HPLED Drivers - Part Two Chris Richardson Planet Analog 10/28/07
Taming the Boost: Predicting and Measuring Feedback Loops in Current-mode Boost HPLED Drivers - Part One Chris Richardson Planet Analog 10/26/07
Driving High-Power LEDS Rick Zarr Machine Design 10/25/07
Your Walls Will Be Changing Jeffrey Kwon Digital TV Designline 09/12/07
Cascaded Converter Boosts LED-Drive Capability Grant Smith EDN 08/16/07
Powering Backlights in Portable Devices Tomi Koskela Portable Design 08/07
Mobile Video Serial Screen Link: Part of a Healthy Power Consumption Diet Todd Whitaker Video/Imaging DesignLine 06/29/07
Series or Parallel LED's in White LED Backlighting Travis Eichhorn Electronic Products 06/07
LEDs Diverse Advances Lead to Numerous Possibilities Karl Schlossstein Planet Analog 09/11/06
Achieving Vivid, Power-Efficient Displays through Backlighting Joy Taylor Portable Design 07/06
Selecting LED Drivers for Wireless Products Jaakko Latvala Electronic Products 06/06
Control LCD Registers and Backlight Voltage with Two Wires Wallace Ly,
Paul Brown
Electronic Design 04/13/06
Adaptive-Gain Charge-Pump Technique Drives White LEDs Dario Nurzad Electronic Design 01/19/06

Portable and Handheld Power Supply Design

Title Author Publication Publication Date
Things to Keep in Mind When Designing Power Management Circuitry Travis Eichhorn EETimes / Embedded.com 10/20/09
Future Trends in Power Management - Page 30 Rick Zarr Portable Design 12/08
Periodic steady-state and small-signal analyses of switching regulators Yushan Li EDN 07/18/08
Solve Leakage and Dynamic Power Loss Mark Hartman & Joy Taylor Mobile Handset Designline 07/16/08
Processor Energy Savings Through Adaptive Voltage Scaling Mark Hartman Portable Design 03/08
An Easy Way To Roll Your Own Programmable Power Supply Donald Schelle, Marc Davis-March Electronic Design 01/29/08
Need to Estimate Buck Converter Efficiency in Portable Apps? Jingdong Chen Mobile Handset Designline 01/14/08
Optimizing Power Consumption in the Mobile Multimedia Delivery Chain - Part Two Abdul Aleaf Power Management Designline 10/12/07
Optimizing Power Consumption in the Mobile Multimedia Delivery Chain - Part One Abdul Aleaf Power Management Designline 10/5/07
Enabling Multimedia in Next-Generation Handhelds Vik Sangha Electronic Products 10/07
Efficiency and Size: Challenges in Power Management for Portable Devices Vik Sangha Planet Analog 09/11/07
Longer Battery Life Equals a Greener Earth Rick Zarr Power Electronics Technology 08/01/07
Maximize Processor Energy Savings in Media-Intensive Mobile Devices with Adaptive Voltage Scaling Joy Taylor Mobile Handset Designline 07/09/07
Un-Parallelize the Video Interface - Go Serial John Goldie Mobile Handset Designline 06/25/07
The Challenges of Handheld Video Rick Zarr SemiApps.com 06/25/07
How to Power Sub-Micron CMOS Loads with an Efficient LDO Bob Nguyen Power Management Designline 06/13/07
Counting the Micro Amps Frederik Dostal EDN 06/07/07
Managing Power Consumption on Your Portable Applications Processor Design Ken Marasco Embedded.com 03/16/07
Powering Portable Media Players Alan Moore Portable Design 03/07
Power Management Solutions: Choosing the Right One Now Pays Dividends Later Bob Nguyen Wireless Design & Development 01/07
The Arrival of the 3G Handset and Power Management Challenges Vik Sangha EE Times 07/03/06
Optimize RF PA Efficiency to Increase Your Handset's Talk-time Mathew Jacob Mobile Handset Designline 06/26/06
Get The Most Power For Your Next-Gen Mobile Phone Design Wallace Ly Power Management Designline 01/16/06

Power Supply Design Techniques

Title Author Publication Publication Date
Using High-current Integrated-switch Power-regulator ICs
Learn the thermal considerations so you don't get burned
Frederik Dostal EDN 10/22/09
Things to Keep in Mind When Designing Power Management Circuitry Travis Eichhorn EETimes / Embedded.com 10/20/09
Optimizing Ripple for a COT Buck Converter Eric Lee, Maurice Eaglin Power Electronics Technology 8/09
Cramer's Rule Helps Solve DC-DC Converter Transfer Functions Haachitaba Mweene, PhD Power Electronics Technology 7/1/09
Error amplifier limitations in high-performance regulator applications Timothy Hegarty EDN 6/24/09
Voltage-Mode Push-Pull Converters Deserve a Second Look Ajay Hari Power Electronics Technology 4/1/09
Buck converter uses low-side PWM IC
A voltage-level shifter lets you control voltages above a PWM controller's power source
L Haachitaba Mweene, PhD EDN 3/19/09
Powering The Signal Path
Using an integrated flyback IC along with post filtering will deliver a high-performance split-rail supply.
Bob Hanrahan Electronic Design 2/26/09
Silently Powering Low-Noise Applications Frederik Dostal Analog Edge 2/09
An Easy Way To Roll Your Own Programmable Power Supply Donald Schelle, Marc Davis-Marsh Electronic Design 1/29/09
Measure Power-Supply-Loop Transfer Frederik Dostal EDN 12/05/08
Automotive Power Management – A Look at Very Low Standby Currents Frederik Dostal ECN 11/13/08
Energy rules, but customization is king Rick Zarr Embedded 11/10/08
Buck-boost topology delivers negative output from positive input Frederik Dostal Power Management Designline 10/21/08
Then, Now and Beyond – Systems Design in the 21st Century Rick Zarr Electronic Design 10/02/08
Why Energy Efficiency Metrics Matter Rick Zarr Greensupplyline 09/04/08
Boost Converter Efficiency Loss Calculations Travis Eichhorn Power Electronics Technology 09/01/08
Measure loop transfer function of power supplies – includes video Frederik Dostal Test and Measurement World 09/01/08
Operation & Benefits of Two-Switch Forward/Flyback Power Converter Topologies Youhao Xi EE Times and Embedded.com 08/24/08
Boost Converter Efficiency Through Accurate Calculations Travis Eichhorn Power Electronics Technology 09/01/08
Emulated Ripple Makes Step-Down Conversion Easy Frederik Dostal Electronic Products 08/01/08
Voltage-Mode Control and Compensation: Intricacies for Buck Regulators Timothy Hegarty EDN 06/30/08
Exploit Controller Features to Optimize Power Designs Ricardo Capetillo Electronic Design 06/25/08
Single-stage synchronous buck converter with high efficiency L. K. Wong and T. K. Man Power Management Designline 05/02/08
Interleaving is Good for Boost Converters, Too Ron Crews & Kim Nielson Power Electronics Technology 05/01/08
Choosing between a positive or negative buck topology in a switching regulator design Hector Arroyo Analog DesignLine (Europe) 04/25/08
Tip of the Week: How to best implement a synchronous buck converter L. K. Wong & T. K. Man Power Management Designline 04/26/08
How to supply, load, and test power-management circuits Part 1 Frederik Dostal Planet Analog 04/09/08
Supplying and Loading of Power Management Circuits Part 2 Frederik Dostal Planet Analog 04/18/08
Robust Controller Design Using Multi-Objective Optimization Joel Steenis Power Management Designline 03/10/08
Feedback Circuit Improves Hysteretic Control Kevin Daugherty Power Electronic 03/08
Emulated Ripple Technique Advances Hysteretic Switchmode Supplies Frederik Dostal Power Management Designline 02/25/08
Reducing Buck Converter Input Capacitance through Multi-Phasing and Clock Synchronization Tim Hegarty EDN 01/28/08
Automotive Switching Regulators Get Input-Transient-Voltage Protection Kevin Daugherty EDN 01/24/08
Two-Switch Topology Boosts Forward, Flyback Designs Youhao Xi Bob Bell Power Management Designline 01/19/08
Power Limits Make Hot Swapping More Robust Neil Gutierrez Power Electronics Technology 01/08
Benefits of Multi-Phasing- Part Two Tim Hegarty Power Management Designline 11/23/07
Benefits of Multi-Phasing- Part One Tim Hegarty Power Management Designline 11/16/07
Benefits of Non-Linear Slope Compensation in Current Mode Control Switch Mode Powers - Part Two Greg Smith Power Management Designline 11/09/07
Benefits of Non-Linear Slope Compensation in Current Mode Control Switch Mode Powers - Part One Greg Smith Power Management Designline 11/05/07
Critical Layout Tips for Fast Switchers Juergen Kuehnel Power Management Designline 09/24/07
High PoE Made Easy Grant Smith Power Management Designline 09/03/07
Controller Monitors ORing FET Current and Voltage Ron Crews Power Electronics Technology 09/01/07
Determine Buck Converter Efficiency in PFM Mode Jingdong Chen Power Electronics Technology 09/01/07
Negative Supply Uses Positive Hysteretic Regulator Ron Crews Power Electronics Technology 08/01/07
Practical Implementation of Negative-Input, Negative-Output Step-Down Switching Converters Hector Arroyo Planet Analog 07/27/07
How to Solve for LDO Regulator-Enabled Glitch Shengming Huang Mobile Handset Designline 07/23/07
Get Negative Auxiliary Output from a Buck Regulator Bob Bell Planet Analog 07/12/07
Hitchhiker's Ride to the World of Current Mode Control Sameh Sarhan Power Management Designline 07/11/07
Get The Scoop On How To Power Share Between Isolated PoE Channels Youhao Xi,
Craig Varga,
Kim Neilson
Power Management Designline 06/04/07
Part Two:  A New Way to Model Current-Mode Control Rob Sheehan Power Electronics Technology 06/07
Part One:  A New Way to Model Current-Mode Control Rob Sheehan Power Electronics Technology 05/07
Power Supplies: The Best Design May Not Be The Smallest Mark Davidson Planet Analog 04/04/07
Current Mirror Improves PWM Regulator's Performance Grant Smith EDN 03/01/07
How to Ease EMI Compliance in Power Converters Haachitaba Mweene Power Management Designline 10/08/06
Comparing the Calculated vs. Measured Efficiency Loss in Synchronous Buck Converters Travis Eichhorn EE Times 10/01/06
Part Two:  Compensating Voltage Mode Buck Regulators Joel Steenis Power Management Designline 09/11/06
Part One:  Compensating Voltage Mode Buck Regulators Joel Steenis Power Management Designline 09/04/06
Control Method Solves Low Duty-Cycle Dilemmas George Hariman Power Electronics Technology 09/01/06
Turn Capacitors and Inductors into “Active Passives” Mathew Jacob Electronic Design 06/08/06
How Digital SoC Kickstarts Power Management in Leading-Edge Designs Mark Davidson Power Management Designline 03/12/06
Designers Debate Merits of Digital Power Management Ravindra Ambatipudi EE Times 01/23/06

Designing for Renewable Energy Applications

Title Author Publication Publication Date
Register to view on-demand: “Increasing PV Panel Energy Output,” Perry Tsao Electronic Design 03/31/09
Shade Happens Ralf Muenster Renewable Energy World 02/02/09
Energy Saving Forum - Page 22 Gordon Mortenson Electronic Products 02/09
Brainstorm: New Year Tech Kevin Kayser ECN 12/05/08

 



WHAT'S NEW
Power Products
  • Constant Current N-Channel Controller with Thermal Foldback for Driving LEDs
  • 75V Constant On-Time PFET Buck Switching Controller
  • 42V Constant On-Time PFET Buck Switching Controller
  • Voltage Mode Active Clamp Controller
  • High Efficiency, Multi Display LED Driver with 128 Exponential Dimming Steps & Integrated OLED Power Supply in 1.2mm × 1.6mm µSMD Package
  • Dual Synchronous Emulated Current-Mode Controller
  • N-Channel Controller for Constant Current LED Drivers
  • LM25037Q - Dual-Mode PWM Controller With Alternating Outputs
  • 1.2A Dual Flash LED Driver System with I2C Compatible Interface
  • PowerWise AVS Energy Management Unit with SPMI

See all new power solutions.

 

 

Power Application Notes
  • AN-1696 Designing a Boost LED Driver Using the LM5022
  • AN-1736 LM3433 HB LED Driver Evaluation Kit
  • AN-1774 LM3410X LED Driver 6-Pin LLP Demo Board
  • AN-1775 LM3410X SEPIC 6-Pin LLP Demo Board
Power Evaluation Boards
  • LM3410XMFLEDEV - $37.50 Description: LM3410 Boost will SOT23 Package evaluation board
  • LM3410XSDLEDEV - $37.50 Description: LM3410 Boost with LLP Package evaluation board
  • LM5035AEVAL - $160.00 Description: Evaluation Board for the PWM Controller with Integrated Half-Bridge and SyncFET Drivers
  • LM3881EVAL - $30.00 Description: Evaluation Board for the LM3881 Power Sequencer
Power Online Seminars


MY BRIEFCASE                                         Remove all from My Briefcase 
Click any "Briefcase" icon to add an item