Version 1
: Received: 30 June 2024 / Approved: 1 July 2024 / Online: 1 July 2024 (08:11:41 CEST)
How to cite:
Cao, Z.; Gui, S.; Xu, C.; Zhong, R.; Lin, Z.; Li, Y. A Constant Voltage WPT System for AM-Modulated Implant Neural Stimulation. Preprints2024, 2024070038. https://doi.org/10.20944/preprints202407.0038.v1
Cao, Z.; Gui, S.; Xu, C.; Zhong, R.; Lin, Z.; Li, Y. A Constant Voltage WPT System for AM-Modulated Implant Neural Stimulation. Preprints 2024, 2024070038. https://doi.org/10.20944/preprints202407.0038.v1
Cao, Z.; Gui, S.; Xu, C.; Zhong, R.; Lin, Z.; Li, Y. A Constant Voltage WPT System for AM-Modulated Implant Neural Stimulation. Preprints2024, 2024070038. https://doi.org/10.20944/preprints202407.0038.v1
APA Style
Cao, Z., Gui, S., Xu, C., Zhong, R., Lin, Z., & Li, Y. (2024). A Constant Voltage WPT System for AM-Modulated Implant Neural Stimulation. Preprints. https://doi.org/10.20944/preprints202407.0038.v1
Chicago/Turabian Style
Cao, Z., Zhaotan Lin and Yubo Li. 2024 "A Constant Voltage WPT System for AM-Modulated Implant Neural Stimulation" Preprints. https://doi.org/10.20944/preprints202407.0038.v1
Abstract
Resonance inductive coupling is widely used for wireless power transfer (WPT) in medical applications. In this paper, we analyze the LCL-compensated WPT structure and propose a novel constant voltage transmission system based on gain estimation, without any extra feedback from the receiver. The system is capable for implant neural stimulation where the load impedance and the coupling coefficient are both variable. Compared to existing methods for constant voltage transmission, our approach offers advantages in compact size and the compatibility with the industrial, scientific and medical (ISM) band. We validate the load-independent resonant characteristic and the feasibility of constant voltage transmission using an experimental prototype working at 6.78MHz. Finally, we discuss the structure of the implant stimulator and methods of applying the proposed WPT system.
Engineering, Electrical and Electronic Engineering
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
