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Electronic Design Power & Analog Update: The design engineer's weekly source for power and analog information
In the February 6, 2012 Issue:
 Live From APEC 2012: Day 1
 Reduce EMI In Your Class D Amplifiers
 From Old Iron To The Need For New Iron: A Call To Action
 Choose Your Voltage Reference: Bandgap Or FGA?
 What's All This Spreadsheet Stuff, Anyhow?
 DC-DC Converters Aim For Efficiency
 Hybrid Flywheel System Extends UPS Run Times With Batteries
 We Want Your IFDs!

Secondary Emissions

Live From APEC 2012: Day 1

 Don Tuite, Analog/Power Editor

The 2012 Applied Power Electronics Conference and Exhibition (APEC) kicks off this week in Orlando, Fla., and Analog/Power Editor Don Tuite is there. Check in with his reports as he looks at big announcements like Transphorm’s 600-V GaN FETs, Maxim’s three-phase power measurement SoC, and Vicor’s intermediate bus converter online power simulation tool.

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Design Solution

Reduce EMI In Your Class D Amplifiers

 Bill Llewellyn, Fairchild Semiconductor

Class D amplification is commonly used in portable devices for its power efficiency advantages over conventional Class AB amplifiers. Its primary disadvantage is its inherent generation of EMI that can negatively impact nearby electronics. Yet three known and effective IC design techniques can substantially mitigate EMI concerns without the burden of additional external components.

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Power Design

From Old Iron To The Need For New Iron: A Call To Action

 Paul Schimel, Contributing Editor

Paul Schimel explains the advantages and challenges of bringing International Rectifier’s GaN-on-silicon FETs to market and then reflects on what needs to happen to magnetic materials so it’s possible to run GaN at really high frequencies.

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Choose Your Voltage Reference: Bandgap Or FGA?

 Tamara Schmitz, Contributing Editor

Tamara Schmitz compares bandgap and floating-grid-array (FGA) voltage references for analog-to-digital converter (ADC) measurements in terms of temperature coefficient, noise, and drift.

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Pease Porridge

What's All This Spreadsheet Stuff, Anyhow?

 Bob Pease, Contributing Editor

We continue our look into Bob Pease’s pre-Web columns with this lost gem about one of his favorite themes: the tendency to trust computers and their results without thinking about them or working through the problems yourself.

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Technology Report

DC-DC Converters Aim For Efficiency

 Sam Davis, Contributing Editor

With the growing importance of power consumption in today’s devices, dc-dc converters primarily strive for efficiency, with new technologies playing a role to achieve that goal.

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From Power Electronics Technology

Hybrid Flywheel System Extends UPS Run Times With Batteries

 Sam Davis, Editor-in-Chief

A hybrid UPS with a fully integrated energy storage system provides power loss protection by combining flywheel and battery technologies. The VDC XEB supports connected loads with clean backup power that is predictable and seamless.

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Ideas For Design

We Want Your IFDs!

 ED News Staff

Do you have a simple and practical solution to a common design problem? We want to hear about it! And so do our readers, making our Ideas for Design one of the most popular departments in Electronic Design. Submit your idea, and you may see it in an upcoming issue. Contributors receive $150. For details, check out our submission guidelines.

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This issue brought
to you by:
Micro Power

Texas Instruments

iC-Haus


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