High efficiency wireless power transmission with digitally configurable stimulation voltage for retinal prosthesis

Guoxing Wang; Wentai Liu; Mohanasankar Sivaprakasam; James D. Weiland; Mark S. Humayun

doi:10.1109/CNE.2005.1419680

High efficiency wireless power transmission with digitally configurable stimulation voltage for retinal prosthesis

Guoxing Wang, Wentai Liu, Mohanasankar Sivaprakasam, James D. Weiland, Mark S. Humayun

Department of Biomedical Engineering

Research output: Contribution to conference › Paper › peer-review

9 Citations (Scopus)

Abstract

Electrical stimulation of retinal neuron cells has been used to invoke perception of sight in legally blind patients due to loss of photoreceptors. In such a prosthetic device, one of the challenges is that the required stimulation voltage varies among patients and also over time. The voltage supply to the stimulator circuits should adapt to these changes for optimal device operation. This paper presents a closed loop wireless power transmission system, which can digitally adjust the voltage. In the system, power is wirelessly transmitted to the secondary side (implant) through a magnetically coupled coil pair. The secondary side wirelessly transmits information about the recovered voltage back to the primary side, which accordingly adjusts the amount of power transmitted and thus maintains the voltage in the implant at the required value. Experimental results verify that the voltage can be effectively configured with power savings up to 30%.

Original language	English
Pages	543-546
Number of pages	4
DOIs	https://doi.org/10.1109/CNE.2005.1419680
Publication status	Published - 2005
Event	2nd International IEEE EMBS Conference on Neural Engineering, 2005 - Arlington, VA, United States Duration: 2005 Mar 16 → 2005 Mar 19

Conference

Conference	2nd International IEEE EMBS Conference on Neural Engineering, 2005
Country/Territory	United States
City	Arlington, VA
Period	05-03-16 → 05-03-19

All Science Journal Classification (ASJC) codes

General Engineering

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10.1109/CNE.2005.1419680

Cite this

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title = "High efficiency wireless power transmission with digitally configurable stimulation voltage for retinal prosthesis",

abstract = "Electrical stimulation of retinal neuron cells has been used to invoke perception of sight in legally blind patients due to loss of photoreceptors. In such a prosthetic device, one of the challenges is that the required stimulation voltage varies among patients and also over time. The voltage supply to the stimulator circuits should adapt to these changes for optimal device operation. This paper presents a closed loop wireless power transmission system, which can digitally adjust the voltage. In the system, power is wirelessly transmitted to the secondary side (implant) through a magnetically coupled coil pair. The secondary side wirelessly transmits information about the recovered voltage back to the primary side, which accordingly adjusts the amount of power transmitted and thus maintains the voltage in the implant at the required value. Experimental results verify that the voltage can be effectively configured with power savings up to 30%.",

author = "Guoxing Wang and Wentai Liu and Mohanasankar Sivaprakasam and Weiland, {James D.} and Humayun, {Mark S.}",

year = "2005",

doi = "10.1109/CNE.2005.1419680",

language = "English",

pages = "543--546",

note = "2nd International IEEE EMBS Conference on Neural Engineering, 2005 ; Conference date: 16-03-2005 Through 19-03-2005",

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Wang, G, Liu, W, Sivaprakasam, M, Weiland, JD & Humayun, MS 2005, 'High efficiency wireless power transmission with digitally configurable stimulation voltage for retinal prosthesis', Paper presented at 2nd International IEEE EMBS Conference on Neural Engineering, 2005, Arlington, VA, United States, 05-03-16 - 05-03-19 pp. 543-546. https://doi.org/10.1109/CNE.2005.1419680

High efficiency wireless power transmission with digitally configurable stimulation voltage for retinal prosthesis. / Wang, Guoxing; Liu, Wentai; Sivaprakasam, Mohanasankar et al.
2005. 543-546 Paper presented at 2nd International IEEE EMBS Conference on Neural Engineering, 2005, Arlington, VA, United States.

Research output: Contribution to conference › Paper › peer-review

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T1 - High efficiency wireless power transmission with digitally configurable stimulation voltage for retinal prosthesis

AU - Wang, Guoxing

AU - Liu, Wentai

AU - Sivaprakasam, Mohanasankar

AU - Weiland, James D.

AU - Humayun, Mark S.

PY - 2005

Y1 - 2005

N2 - Electrical stimulation of retinal neuron cells has been used to invoke perception of sight in legally blind patients due to loss of photoreceptors. In such a prosthetic device, one of the challenges is that the required stimulation voltage varies among patients and also over time. The voltage supply to the stimulator circuits should adapt to these changes for optimal device operation. This paper presents a closed loop wireless power transmission system, which can digitally adjust the voltage. In the system, power is wirelessly transmitted to the secondary side (implant) through a magnetically coupled coil pair. The secondary side wirelessly transmits information about the recovered voltage back to the primary side, which accordingly adjusts the amount of power transmitted and thus maintains the voltage in the implant at the required value. Experimental results verify that the voltage can be effectively configured with power savings up to 30%.

AB - Electrical stimulation of retinal neuron cells has been used to invoke perception of sight in legally blind patients due to loss of photoreceptors. In such a prosthetic device, one of the challenges is that the required stimulation voltage varies among patients and also over time. The voltage supply to the stimulator circuits should adapt to these changes for optimal device operation. This paper presents a closed loop wireless power transmission system, which can digitally adjust the voltage. In the system, power is wirelessly transmitted to the secondary side (implant) through a magnetically coupled coil pair. The secondary side wirelessly transmits information about the recovered voltage back to the primary side, which accordingly adjusts the amount of power transmitted and thus maintains the voltage in the implant at the required value. Experimental results verify that the voltage can be effectively configured with power savings up to 30%.

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High efficiency wireless power transmission with digitally configurable stimulation voltage for retinal prosthesis

Abstract

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All Science Journal Classification (ASJC) codes

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