Design and Optimization of Resonance-Based Efficient Wireless Power Delivery Systems for Biomedical Implants

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Design and Optimization of Resonance-Based Efficient Wireless Power Delivery Systems for Biomedical Implants

Anil Kumar RamRakhyani - Nama Orang; Shahriar Mirabbasi - Nama Orang; Mu Chiao - Nama Orang;

Resonance-based wireless power delivery is an efficient technique to transfer power over a relatively long distance. This technique typically uses four coils as opposed to two coils used in conventional inductive links. In the four-coil system, the adverse effects of a low coupling coefficient between primary and secondary coils are compensated by using high-quality ( ) factor coils, and the efficiency of the system is improved. Unlike its twocoil counterpart, the efficiency profile of the power transfer is not a monotonically decreasing function of the operating distance and is less sensitive to changes in the distance between the primary and secondary coils. A four-coil energy transfer system can be optimized to provide maximum efficiency at a given operating distance. We have analyzed the four-coil energy transfer systems and outlined the effect of design parameters on power-transfer efficiency. Design steps to obtain the efficient power-transfer system are presented and a design example is provided. A proof-of-concept prototype system is implemented and confirms the validity of the proposed analysis and design techniques. In the prototype system, for a power-link frequency of 700 kHz and a coil distance range of 10 to 20 mm, using a 22-mm diameter implantable coil resonance-based system shows a power-transfer efficiency of more than 80% with an enhanced operating range compared to

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Judul Seri: IEEE TRANSACTIONS ON BIOMEDICAL CIRCUITS AND SYSTEMS
No. Panggil: -
Penerbit: New York : IEEE., 2011
Deskripsi Fisik: IEEE TRANSACTIONS ON BIOMEDICAL CIRCUITS AND SYSTEMS, VOL. 5, NO. 1, FEBRUARY 2011
Bahasa: English
ISBN/ISSN: DOI: 10.1109/TBCAS.2
Klasifikasi: -
Tipe Isi: -
Tipe Media: -
Tipe Pembawa: -
Edisi: VOL. 5, NO. 1, FEBRUARY 2011
Subjek: ELEKTRONIK
Info Detail Spesifik: -
Pernyataan Tanggungjawab: agus

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