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首页> 外文期刊>IEEE sensors journal >A Closed-Loop Remote Powering Link for Wireless Cortical Implants
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A Closed-Loop Remote Powering Link for Wireless Cortical Implants

机译：无线皮质植入物的闭环远程供电链路

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This paper presents a closed-loop remote powering link for wireless cortical implants. The link operates from a single power supply at the external reader and delivers power to the implant adaptively under changing load conditions. A feedback information is sent from the implant to the external reader about the power consumption in the implant and the external reader adapts the amount of transmitted power depending on this feedback. In addition, an in vitro measurement setup is fabricated in order to characterize the performance of the wireless energy transfer when the implant is immersed into saline solution. The implant is packaged by using biocompatible materials and the operation of the remote powering link is demonstrated in air and in vitro for a wide range of load power delivered from the voltage regulator. The power transfer efficiency of the overall closed-loop remote powering link is measured to be 10.6% in vitro at nominal load power of 10 mW. Finally, the operation of the implant in vitro is demonstrated over a five-week period.
机译：本文提出了一种用于无线皮质植入物的闭环远程供电链路。该链接由外部读取器上的单个电源供电，并在不断变化的负载条件下自适应地向植入物供电。关于植入物中的功率消耗的反馈信息从植入物发送到外部读取器，并且外部读取器根据该反馈来调整发射功率的量。另外，制造了体外测量装置以表征当将植入物浸入盐溶液中时无线能量传递的性能。植入物通过使用生物相容性材料进行包装，并且在空中和体外演示了远程供电链路的工作情况，该远程供电环节可从调压器提供各种负载功率。在标称负载功率为10 mW时，在体外测得的整个闭环远程供电链路的功率传输效率为10.6％。最后，在五周的时间内证明了植入物的体外操作。

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