Multi-cell thin film microbattery array
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United States of America Patent
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May 3, 2016
Grant Date -
Feb 21, 2013
app pub date -
Aug 16, 2012
filing date -
Aug 17, 2011
priority date (Note) -
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status (Latency Note)
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Abstract
A rechargeable thin film microbattery cell array of at least four thin film microbattery cells is electrically connected together in parallel to provide power as a single battery power source. The array further comprises testing logic to determine if a microbattery cell has a microbattery cell voltage that is more than a predetermined percentage different from the voltage of the overall microbattery cell array or has an absolute voltage below a predetermined cutoff threshold, and logic to disconnect any microbattery cell from the microbattery cell array if the microbattery cell has a microbattery cell voltage that is more than a predetermined percentage different from the voltage of the overall microbattery cell array or has an absolute voltage below a predetermined cutoff threshold. Embodiments also comprise a Switch Capacitor DC-DC downconverter component that reduces the voltage potential to operate some or all functionalities located on the integrated circuit.
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