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    • 8. 发明授权
    • Method for monitoring end of life for battery
    • 监测电池使用寿命的方法
    • US07515962B2
    • 2009-04-07
    • US10680008
    • 2003-10-07
    • Michael J. Lyden
    • Michael J. Lyden
    • A61N1/37
    • A61N1/3708G01R31/3651G01R31/3679G01R31/3693H02J2007/005
    • A system is described which has a battery, a device which is powered by the battery in an episodic manner, and a charge storage capacitor. The system has attached to the charge storage capacitor a device or devices capable of: reading the rate of charge storage; or measuring both time and charge stored or added to the charge storage capacitor so that a rate of charge storage may be calculated. The estimated replacement time for the battery, particularly for a lithium battery in a pacing device, is easily estimated. Also described herein is a process for estimating a level of energy depletion in the system. The process comprises: finding a relatively quiescent period in powering of the device in the episodic manner; determining a rate of charging in the storage capacitor during the quiescent period; and correlating the rate of charging in the storage capacitor to a value of internal impedance in the battery through a comparison with known relationships for the battery and rate of charging to determine a value for the internal impedance of the battery.
    • 描述了一种系统,其具有电池,以电池方式由电池供电的装置和电荷存储电容器。 该系统已经将电荷存储电容器连接到能够读取电荷存储速率的装置或装置; 或者测量存储或添加到电荷存储电容器的时间和电荷,从而可以计算电荷存储速率。 估计电池的更换时间,特别是起搏装置中的锂电池的更换时间。 本文还描述了用于估计系统中能量消耗水平的过程。 该过程包括:以偶发方式找到设备供电相对静止的时间段; 在静止期间确定存储电容器的充电速率; 并且通过与电池的已知关系和充电速率的比较来确定电池的内部阻抗的值,将存储电容器中的充电速率与电池中的内部阻抗的值相关联。