TITLE

Power supplies for next generation systems must be appropriately tuned

AUTHOR(S)
Hansen, Jason
PUB. DATE
April 2005
SOURCE
Portable Design;Apr2005, Vol. 11 Issue 4, p20
SOURCE TYPE
Periodical
DOC. TYPE
Article
ABSTRACT
Portable products continue to become increasingly sophisticated with new features and capabilities being incorporated, such as color LCDs, organizers, and micro-browsers as well as entertainment features like FM tuners, MP3 players, and games. However, users' expectations are that these new features will not add weight to the product or affect the operating or standby time between battery recharges. One method of addressing these conflicting needs is through improvements in digital semiconductor manufacturing techniques and advances in power management techniques. The battery section of feature rich portable devices has mainly transitioned from NiMH to Lilon batteries due to the Lilon's better volumetric and gravimetric energy densities. That translates to less size and weight for a given charge capacity. Alkaline cells and NiMH are still present in PDAs and digital still cameras, especially in the lower-cost architectures.
ACCESSION #
16816452

 

Related Articles

  • Maturing rugged LCD technology seeks the next major breakthrough. Keeler, John // Military & Aerospace Electronics;May2006, Vol. 17 Issue 5, p25 

    The article describes the development of rugged liquid crystal display (LCD) technology with improved specifications that allow it to look brighter, could withstand more severe environmental conditions and pass more rigid electronic emissions testing. LCD screen sizes are also growing to levels...

  • Know Your Batteries. Fales, Dan // MotorBoating;Sep2002, Vol. 190 Issue 3, p40 

    Discusses the various types of batteries for portable computers, including the drawbacks and advantages of each type of batteries.

  • HANDHELD MULTIMEDIA ICS HOLD THE KEY TO ENERGY-EFFICIENT VIDEO. Davis, Sam // Electronic Design;12/3/2007, Vol. 55 Issue 27, p38 

    The article reports on the use of adaptive voltage scaling (AVS) by National Semiconductor Corp.'s PowerWise technology in minimizing power consumption in the U.S. It stated that AVS reduces energy consumption by up to 70%, extending battery life. With AVS, the processors can adaptively adjust...

  • Triple-output TFT-LCD bias supply uses very small ceramic capacitors. Shockey // Electronic Design;12/06/99, Vol. 47 Issue 25, p182 

    Presents an electronic circuit for the current power-supply of thin-film transistor liquid crystal display panels. Need for the overall layout to be small and meet tight height requirements; Necessity for eliminating bulky indicators and capacitors.

  • The Big Picture.  // Popular Mechanics;Mar2005, Vol. 182 Issue 3, p28 

    The article presents an information about battery of digital cameras. In the world of digital cameras, big liquid crystal display screens often mean miserable battery life. But not with the new pocket-size, 5-megapixel Casio Exilim EX-257. Screen takes up two-thirds of the back of the camera,...

  • New baby for Murraypro.  // TVB Europe;Apr2005, Vol. 14 Issue 4, p3 

    The article reports that Murraypro announced at the Video Forum in London, England what it is calling the world's smallest widescreen liquid crystal display TV monitor. The unit, which offers dual CVBS video inputs (525/625 auto switchable) for each of the quad screens, has been designed to be...

  • Power Sources & Conditioning Devices.  // ECN: Electronic Component News;Oct2004, Vol. 48 Issue 11, p22 

    Presents several power sources and conditioning devices. Excelsys Technologies' modular alternating current/direct current power supplies; Foster Transformer's low voltage class 2 transformers; Endicott Research Group Inc.'s DMAD Series direct current/alternating current inverter designed to...

  • DC-DC converter drives 19in. TFTs.  // Electronics Weekly;9/28/2005, Issue 2211, p31 

    The article reports that Intersil Inc. has announced a four-channel DC-DC converter for use in TFT-liquid crystal displays measuring 19in. or greater. The device features a pulse width modulation boost converter with 3V to 5V input capability and up to 16V output. It also includes integrated...

  • A BIG ULTRA MINI. Itoi, Kay // Newsweek (Pacific Edition);7/25/2005-8/1/2005 (Pacific Edition), Vol. 146 Issue 4/5, p66 

    Focuses on the SL-C3100 ultra mini personal digital assistant by Sharp. Description of its features and how it works; Cost; Disk space that the device holds; How the product has an LCD screen.

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics