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January 9, 2007  |   A Penton Media Publication  |   Volume 6 Number 2  
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Integrated, Protected Class D Audio Chipset for High Performance Amplifiers Featuring the new IRS2092 integrated audio driver IC and full complement of digital audio MOSFETs, IR¹s flexible chipset can scale to applications from 50-500W by simply replacing MOSFETs. The audio IC integrates four essential functions for Class D design implementation: error amplifier, PWM comparator, gate driver, and protection circuitry.

www.irf.com/whats-new/nr071002.html


Table Of Contents
Mobile Internet Devices Give Rise to New Power Management Chips
Ballast Design Makes CFLs More Dimmable
Ultracapacitors Are Poised For Widespread Use in Cars
New Products: Fly-Away Success Or Flops?
When Giants Fight, The Little Guys Lose
Dual Buck Converter Is Tiny, But Efficient
IC Charges Single or Dual-Cell Li-ion Packs
Stacked Film Caps Promise Better Stability than MLCCs
Motor Controller ICs Feature Commutation Logic
Full Brick Delivers 700 W for RF Amps
Events
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Next-Generation Power Management IC Maximizes Energy in Multi-Kilowatt Systems: TI's new UCC28070 is the industry's first single-chip, interleaved power factor correction (PFC) control circuit for multi-kilowatt communications, server and industrial systems. This two-phase, average current-mode controller provides more efficiency, easier design and scales to higher power. ad.doubleclick.net/clk;159467715;22248117;l?http://www.ti.com/pfc



Top Story

Mobile Internet Devices Give Rise to New Power Management Chips
by David Morrison, Editor-in-Chief, Power Electronics Technology
 With their demands for high levels of functional integration and long battery life, the next generation of mobile internet devices is inspiring the development of power management ICs tailored to the applications.


Industry News

Ballast Design Makes CFLs More Dimmable
Engineers from PureSpectrum have developed an electronic ballast circuit design that enables compact fluorescent lamps to be fully dimmable using a standard dimming device.

Ultracapacitors Are Poised For Widespread Use in Cars
Maxwell Technologies has announced that Continental AG has selected Maxwell's BOOSTCAP ultracapacitors as the energy storage element of a "boardnet" stabilization system it is developing for a major automaker.


Online Exclusive

New Products: Fly-Away Success Or Flops?
by Alan Elbanhawy, Power Semiconductor Industry Veteran
 Once in a long while, a new product takes the market by storm, changing the very way we lead our lives. At the same time, dozens of new products with varying degrees of innovation in basic science and engineering go unrecognized by the public and/or the industry. Why is that?

When Giants Fight, The Little Guys Lose
By Lou Pechi, President, STRATA-Strategic Advisors, San Diego
 The jury in the U.S. District Court for the Eastern District of Texas upheld the validity of the Power-One Z-One digital power management and control patents asserted against Artesyn Technologies.
The oracle has spoken, albeit from both sides of the mouth.


New Products and Services

Dual Buck Converter Is Tiny, But Efficient
Micrel's MIC23250 is a dual 400-mA synchronous buck converter housed in a 2-mm x 2-mm, 10-lead MLF package.

IC Charges Single or Dual-Cell Li-ion Packs
From Advanced Analogic Technologies, the AAT3663 is a 1-A linear battery charger IC capable of charging up to two Li-ion cells in series.

Stacked Film Caps Promise Better Stability than MLCCs
NIC Components' NSHC and NSPU series of stacked film chip capacitors combine small component size with stability under voltage, stability over time, immunity from cracking and low dielectric loss.

Motor Controller ICs Feature Commutation Logic
From Allegro MicroSystems come two automotive-grade (temperature and voltage rated) three-phase BLDC motor controller ICs.

Full Brick Delivers 700 W for RF Amps
Power-One's FBA48T25280 700-W full brick dc-dc converter provides a 25-A, user-adjustable 16.8-V to 32.2-V output.


Upcoming Events

Events
Jan. 28-30, 2008
Tactical Power Sources Summit 2008
Washington, D.C.
www.idga.org

Feb. 14-15
2008 Motor, Drive & Automation Systems Conference
Atlanta, Ga
www.e-driveonline.com

Feb. 24-28
APEC 2008
Austin, Texas
www.apec-conf.org


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