发明名称 |
SELECTABLE BOOST CONVERTER AND CHARGE PUMP FOR COMPLIANCE VOLTAGE GENERATION IN AN IMPLANTABLE STIMULATOR DEVICE |
摘要 |
Improved compliance voltage generation circuitry for a medical device is disclosed. The improved circuitry in one embodiment comprises a boost converter and a charge pump, either of which is capable of generating an appropriate compliance voltage from the voltage of the battery in the device. A telemetry enable signal indicating whether the implant's transmitter, receiver, or both, have been enabled is received. A "boost" signal from compliance voltage monitor-and-adjust logic circuitry is processed with the telemetry enable signal and its inverse to selectively enable either the charge pump or the boost converter: if the telemetry enable signal is not active, the boost converter is used to generate the compliance voltage; if the telemetry enable signal is active, the charge pump is used. Because the charge pump circuitry does not produce a magnetic field, the charge pump will not interfere with magnetically-coupled telemetry between the implant and an external controller. By contrast, the boost converter is allowed to operate during periods of no telemetry, when magnetic interference is not a concern, while obtaining the advantage of higher power efficiency. |
申请公布号 |
WO2010096131(A1) |
申请公布日期 |
2010.08.26 |
申请号 |
WO2009US63578 |
申请日期 |
2009.11.06 |
申请人 |
BOSTON SCIENTIFIC NEUROMODULATION CORPORATION;NIMMAGADDA, KIRAN;RAHMAN, MD, MIZANUR;PARRAMON, JORDI |
发明人 |
NIMMAGADDA, KIRAN;RAHMAN, MD, MIZANUR;PARRAMON, JORDI |
分类号 |
H02M3/07;A61N1/372;A61N1/378;H02M1/00;H02M3/158 |
主分类号 |
H02M3/07 |
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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