September 2004
Portable Design;Sep2004, Vol. 10 Issue 9, p45
The article presents information about some latest electronic products. Three multi-line extensions of the MicroClamp family of transient voltage suppressors can protect critical circuits in cell phones, PDA, digital music players, and other portable electronic devices from electrostatic discharge (ESD). Another new gas gauge technology calculates remaining capacity in lithium based battery packs with up to 99% accuracy throughout the entire life of a battery, says the manufacturer. The Impedance Track technology allows designers and users of portable medical devices, industrial appliances, and notebooks to prolong battery use and always know the exact amount of potential energy inside the battery. The technology gauge changes in impedance or resistance caused by battery age, temperature, and cycle patterns to predict runtime of two, three and four cell battery packs. For certain applications such as heart defibrillators or backup battery packs used in telecom systems that never fully charge and discharge. Impedance Track will ensure instant and accurate capacity information on a continual basis.


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