TITLE

Dual-mode Lilon chargers relieve thermal, noise issues

AUTHOR(S)
Lai, Zheren; Richey, Mark
PUB. DATE
May 2004
SOURCE
Portable Design;May2004, Vol. 10 Issue 5, p36
SOURCE TYPE
Periodical
DOC. TYPE
Article
ABSTRACT
Linear chargers are widely used for single-cell rechargeable LiIon batteries in handheld applications due to their simplicity, low cost, and small size. Despite all the advantages of linear charging typology, it does have its Achilles' heel: high thermal dissipation. The relatively low processing power, small monochrome displays, and limited functionality found in early handheld devices allowed the use of low-capacity battery cells that could be rapidly charged at lower currents, thus effectively sidestepping the major thermal flaw of the linear charging topology.
ACCESSION #
13190860

 

Related Articles

  • Is the smart battery a help or deterrent? Buchmann, Isidor // Portable Design;May2004, Vol. 10 Issue 5, p36 

    The battery has the inherent problem of not being able to communicate with the user. Weight, color, or size cannot provide an indication of the battery's state of charge or state of health. The user is at the mercy of the battery. Help is at hand in breaking the code of silence. An increasing...

  • Wireless Products Signal New Uses for VLDOs. Armstrong, Tony // Power Electronics Technology;Jul2005, Vol. 31 Issue 7, p38 

    Reports on the new uses for very low-dropout (VLDO) regulators with the emergence of portable wireless devices. Ability of VLDO to provide compact and efficient step-down conversion at low current levels; Efforts of cell phone manufacturers to design full-packed units that has longer running...

  • WIRELESS POWER BOOSTER.  // Technology Review;Jul/Aug2004, Vol. 107 Issue 6, p15 

    This article reports on the redesign of a key electronic component in a wireless device by Zhenqiang Ma, a University of Wisconsin-Madison electrical engineer. The device is designed so that it can increase the strength of outgoing signals while saving battery power. Ma has come up with a new...

  • FEEDING POWER-HUNGRY GADGETS. Rojas, Peter // Money;May2004, Vol. 33 Issue 5, p131 

    Gadgets just keep getting smaller, faster, cheaper and better. But for all this progress, there is one key technology that hasn't kept pace: batteries. Batteries are the weakest link in most consumer electronics. Each kind of gadget presents a different kind of battery problem, with different...

  • THE QUEST FOR POWER.  // Wireless Week;7/15/2003, Vol. 9 Issue 15, p1 

    Talks about batteries used in mobile telephones. Expectation of consumers regarding telephones; Limitation of cellular telephone batteries; Power options sought by the wireless communication industry.

  • Novel measurement circuit, eases battery-stack-cell design. Williams, Jim; Thoren, Mark // EDN Europe;Mar2008, Vol. 53 Issue 3, p46 

    The article reports on the study on the battery cell measurement problem in Europe. It is said that battery stack's deceptively simple appearance masks a stubborn problem which has been around for a long time. Moreover, designers have tried various approaches to isolated-cell-voltage...

  • ANOTHER TAKE ON TS-850S BATTERY REPLACEMENT. Hammerling, Harry M. // QST;Jan2005, Vol. 89 Issue 1, p66 

    Provides a hint on battery replacement. Positioning new battery in a holder under the access hatch for the crystal filter switch; Use of CR2477N battery; Application of battery holder 614-HU2477N-1; Contact information.

  • Yellow-green light-emitting electrochemical cells with long lifetime and high efficiency. Sandström, Andreas; Matyba, Piotr; Edman, Ludvig // Applied Physics Letters;2/1/2010, Vol. 96 Issue 5, p053303 

    We show that the electrochemical stability window of the constituent components in light-emitting electrochemical cells (LECs), e.g., the electrolyte, should be considered in order to minimize undesired side reactions. By designing and operating LECs in accordance with straightforward...

  • Design and fabrication of a bending rotation fatigue test rig for in situ electrochemical analysis during fatigue testing of NiTi shape memory alloy wires. Neelakantan, Lakshman; Zglinski, Jenni Kristin; Frotscher, Matthias; Eggeler, Gunther // Review of Scientific Instruments;Mar2013, Vol. 84 Issue 3, p035102 

    The current investigation proposes a novel method for simultaneous assessment of the electrochemical and structural fatigue properties of nickel-titanium shape memory alloy (NiTi SMA) wires. The design and layout of an in situ electrochemical cell in a custom-made bending rotation fatigue (BRF)...

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