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In remote sensors a RF wireless link can be used to transmit the collected data to a reader unit. In order to improve the sensor lifetime, an inductive link could be used to sporadically reload the sensor battery without physical access to it. However the presence of a coil integrated in the same chip together with the antenna will degrade the RF link performance. In this paper, simulated and measured...
This paper presents a non-contact memory card and a host employing simultaneous data and power transmission through inductive coupling. Nested clover-shaped data coils are proposed for reducing interference from a power link. The host wirelessly tracks current consumption of the card and adjusts transmit power to improve power transfer efficiency. The prototype is implemented in 65nm CMOS. It achieves...
Inductive coupling is commonly used for wireless power and data transfer in biomedical telemetry systems. The increasing demand on the performance of medical devices requires high data rate and high power efficiency at the same time. If only one radio frequency carrier is used, it is difficult to achieve both high data rate and high power efficiency due to the competing requirements on carrier frequency...
This paper describes wireless measurement platform, which uses inductive power and data transmission and provides up to four analog measurement channels. Platform is powered by inductive coupling using the 125 kHz magnetic field. Data transmission is realized by modulating the magnetic field. The platform has up to four 10-bit analog channels. The sample rate of the platform is 237 samples per second,...
Inductive coupling is commonly used for wireless power and data transfer in biomedical telemetry systems. The increasing demand on the performance of medical devices requires high data rate and high power efficiency at the same time. If only one radio frequency carrier is used, it is difficult to achieve both high data rate and high power efficiency due to the competing requirements on carrier frequency...
This paper describes wireless measurement platform, which uses inductive power and data transmission and provides up to four analog measurement channels. Platform is powered by inductive coupling using the 125 kHz magnetic field. Data transmission is realized by modulating the magnetic field. The platform has up to four 10-bit analog channels. The sample rate of the platform is 237 samples per second,...
W artykule przedstawiono prototypowy system do transmisji danych pomiędzy implantem a programatorem zewnętrznym. Do transmisji danych zastosowano sprzężenie indukcyjne. Przedstawiono wyniki symulacji komputerowej oraz przeprowadzono weryfikację eksperymentalną układu. System ten stanowi część projektu elektronicznego neutralizatora bólu.
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