Hendrik J. Bergveld

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Li-ion is the most commonly used battery chemistry in portable applications nowadays. Accurate state-of-charge ͑SOC͒ and remaining run-time indication for portable devices is important for the user's convenience and to prolong the lifetime of batteries. A new SOC indication system, combining the electromotive force ͑EMF͒ measurement during equilibrium and(More)
This paper reports a Design for Testability technique, which provides necessary diagnostic capability for signature-based testing of analog circuits. To facilitate this kind of testing, it is preferable to observe the current (or voltage) signatures of individual cores instead of observing the current (or voltage) signature of the whole analog SoC.(More)
Accurate State-of-Charge (SoC) and remaining run-fully charged or it is overcharged. In the former case, the time indication for portable devices is important for the user-battery will be recharged more often than needed, which will convenience and to prolong the lifetime of batteries. However, the lead to an earlier wear-out. In the latter case, frequent(More)
—— The known methods of State-of-Charge (SoC) indication in portable applications are not accurate enough under all practical conditions. This paper describes a real-time evaluation LabVIEW system for an SoC algorithm, that calculates the SoC in [%] and also the remaining run-time available under the valid discharge conditions. With the described system the(More)
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