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SYSTEM AND METHOD FOR ESTIMATING BATTERY CAPACITY
专利权人:
Anthony W. Cowley
发明人:
Anthony W. Cowley,Saadat Hussain
申请号:
US13016510
公开号:
US20120197341A1
申请日:
2011.01.28
申请国别(地区):
US
年份:
2012
代理人:
摘要:
A method for estimating capacity of a battery in an implantable medical device includes obtaining a characteristic curve of voltage versus resistance for the battery, periodically determining voltage and resistance of the battery, and comparing the resistance with a third derivative function of the characteristic curve, the third derivative function having roots representing near depletion of the battery and end of service of the battery, respectively. Remaining time of service of the battery can also be determined by comparing the resistance value with a curve of battery capacity versus resistance for the battery.
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