发明名称 |
CHARGING SYSTEM AND FREQUENCY TUNING METHOD FOR AN IMPLANTABLE DEVICE |
摘要 |
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. |
申请公布号 |
EP2699313(A2) |
申请公布日期 |
2014.02.26 |
申请号 |
EP20120714193 |
申请日期 |
2012.04.06 |
申请人 |
MEDTRONIC, INC. |
发明人 |
OLSON, DAVID P.;DELISI, NICHOLAS A.;EISCH, JAY T.;LABROSSE, PHILIP R.;NOLAN, JOSEPH J. |
分类号 |
A61N1/378;H02J7/02 |
主分类号 |
A61N1/378 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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