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Efficiency Improvement of Wireless Power Transmission for Bio-Implanted Devices

Authors: M. A. Hannan, S. A. Samad, A. Hussain, Saad Mutashar


This paper deals with the modified wireless power transmission system for biomedical implanted devices. The system consists of efficient class-E power amplifier and inductive power links based on spiral circular transmitter and receiver coils. The model of the class-E power amplifier operated with 13.56 MHz is designed, discussed and analyzed in which it is achieved 87.2% of efficiency. The inductive coupling method is used to achieve link efficiency up to 73% depending on the electronic remote system resistance. The improved system powered with 3.3 DC supply and the voltage across the transmitter side is 40 V whereas, cross the receiver side is 12 V which is rectified to meet the implanted micro-system circuit requirements. The system designed and simulated by NI MULTISIM 11.02.

Keywords: Inductive Coupling, Wireless Transmission, Implanted Devices, class-E power amplifier, coils design

Digital Object Identifier (DOI):

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