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    • 2. 发明申请
    • RECHARGE TUNING TECHNIQUES FOR AN IMPLANTABLE DEVICE
    • 用于可移植设备的充电调谐技术
    • US20120262108A1
    • 2012-10-18
    • US13439591
    • 2012-04-04
    • David P. OlsonNicholas A. DelisiJay T. EischPhilip R. LaBrosseJoseph J. Nolan
    • David P. OlsonNicholas A. DelisiJay T. EischPhilip R. LaBrosseJoseph J. Nolan
    • H02J7/00H02J17/00
    • A61N1/3787H02J7/025
    • Techniques are disclosed for tuning a frequency at which an external device transcutaneously transfers energy. The transferred energy may be used to charge a rechargeable power source of an implantable medical device (IMD) and/or to power the IMD directly. One embodiment relates to a charging system that may comprise a circuit to drive a primary coil of an external device at a drive frequency and a control circuit to tune the drive frequency based on a characteristic of a monitored signal that is associated with the primary coil. The characteristic is not present when the primary coil is being driven at a resonant frequency of the system. In a specific example, the characteristic comprises a stub pulse and the control circuit is configured to tune the drive frequency based on at least one of a relative timing and a width of the stub pulse.
    • 公开了用于调谐外部设备经由能量传递的频率的技术。 转移的能量可以用于对可植入医疗装置(IMD)的可再充电电源进行充电和/或直接为IMD供电。 一个实施例涉及一种充电系统,其可以包括用于以驱动频率驱动外部设备的初级线圈的电路和用于基于与初级线圈相关联的监控信号的特性来调节驱动频率的控制电路。 当初级线圈以系统的谐振频率驱动时,该特性不存在。 在具体示例中,特征包括短截线脉冲,并且控制电路被配置为基于短截线脉冲的相对定时和宽度中的至少一个来调节驱动频率。