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Design of Wireless Biotelemetry Powering System for Implanted Sensing Devices in Human Body | ||
| Journal of University of Babylon | ||
| Article 1, Volume 25, Issue 2, 2017, Pages 425-435 | ||
| Authors | ||
| Abdulkareem Mokif Obais; Zahraa Hashim Kareem | ||
| Abstract | ||
| In this paper, a wireless power transfer system is used to power the implanted sensors near the skin of the human body. The system consists of an efficient class-E power amplifier and inductive power links based on planner circular spiral coil with rectangular cross sectional area is used as a transmitter and receiver coil. Each of the two coils is symmetrical in geometry and designed with four number of turns and 0.633uH of inductance at inner and outer radii of 1mm and 3mm, respectively. The system is operated with a resonant frequency of 13.56MHz. A digital information with low data rate that has a frequency of 200 KHz and a voltage level of 1V is used with ASK modulation technique. The data transmitted at 1cm separating distance between the transmitter and receiver circuits by directly coupled method with a supplying DC voltage of 2.4V obtained for powering the implanted sensor. The proposed system is designed and simulated on on PSpice in ORCAD 16.6 program | ||
| Keywords | ||
| Wireless Transmission; inductive coupling; implanted devices; class E power amplifier; coil design | ||
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