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Power Tip 20: Watch Those Unintended Resonant Responses
Understand how filter ringing can lead to power-supply failures

Power Supplies

Intelligent Interleaving: improving energy efficiency in AC-DC power supplies
From Fairchild Semiconductor, a how-to on improving energy efficiency in your power supply design using the FAN9612 Interleaved Dual Boundary Conduction Mode PFC controller.

Some tips for charging from USB sources (Part 2 of 2)
Understand the subtleties of using the ubiquitous USB port as a charging and power source

Some tips for charging from USB sources (Part 1 of 2)
Understand the subtleties of using the ubiquitous USB port as a charging and power source

See all Power Supplies »

Power Components

Fundamentals of designing with MOSFET power switches
Understand how to use these basic, versatile, essential discrete components

Some tips for charging from USB sources (Part 2 of 2)
Understand the subtleties of using the ubiquitous USB port as a charging and power source

Some tips for charging from USB sources (Part 1 of 2)
Understand the subtleties of using the ubiquitous USB port as a charging and power source

See all Power Components »

UPS

When good grounds turn bad--isolate!
To make designers aware of these design pitfalls, this article explains where ground potential differences originate in the electrical installation, how ground loops are created unintentionally, and how isolation circumvents both conditions to yield a robust data-transmission system.

Efficient architectures move sources closer to loads
Large IT data centers use as much power as 25,000 to 35,000 homes and unfortunately as much as half of that power is wasted, but moving more efficient power sources closer to the load can slash waste.

Standby and uninterruptible power supply tutorial - Part 2
There is a big difference between the performances of the standby backup supply and an on-line UPS. This two-part tutorial steps you through the differences and similarities. This is Part 2 and it describes and provides examples of power factor and why it's important to understand.

See all UPS »

Battery Management

Some tips for charging from USB sources (Part 2 of 2)
Understand the subtleties of using the ubiquitous USB port as a charging and power source

Some tips for charging from USB sources (Part 1 of 2)
Understand the subtleties of using the ubiquitous USB port as a charging and power source

Using an FPGA to tame the power beast in consumer handheld MPUs
Shorter product lifecyles and lower volume consumer product families have led designers increasingly to turn to the FPGA for handheld-product development. But doing so requires grappling with new challenges in terms of area, speed and power.

See all Battery Management »

New Power Plays

Power Tip 20: Watch Those Unintended Resonant Responses
Understand how filter ringing can lead to power-supply failures

Isolate your interface to communicate safely and better (Part 2 of 2)
Understand how galvanic isolation of signal and power can improve performance and safety of basic interfaces such as RS-485

Fundamentals of designing with MOSFET power switches
Understand how to use these basic, versatile, essential discrete components

See all New Power Plays »

See all Design Center »

POWER MANAGEMENT DESIGN CENTER ARCHIVE

February 2010 Power Management Design Center
January 2010 Power Management Design Center
December 2009 Power Management Design Center
November 2009 Power Management Design Center
October 2009 Power Management Design Center
September 2009 Power Management Design Center
August 2009 Power Management Design Center
July 2009 Power Management Design Center

About the Power Management DesignLine How-To Section
Power Management DesignLine's How-To Section delivers detailed engineering articles focused on the design and development of power components, power sources, battery management devices/systems, and portable/mobile systems. Design topics covered in this category include micro fuel cells, buck/boost DC/DC converter, thermal management, uninterruptible power supplies (UPS), supercapacitors, ultracapacitors, DC/DC converters, AC/DC converters, LDO regulators, LED drivers, LCD drivers, PWM controllers, POL converters, solar energy, and more.

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