Loading web-font TeX/Math/Italic
A Wireless-Powered Battery-Less Electrical Stimulator With Delay-Shift Keying (DSK) Based Downlink Data Communication | IEEE Journals & Magazine | IEEE Xplore

A Wireless-Powered Battery-Less Electrical Stimulator With Delay-Shift Keying (DSK) Based Downlink Data Communication


Abstract:

This paper presents a 6.78-MHz wireless power and bidirectional data transfer system, which is intended for applications involving battery-less implantable gastric electr...Show More

Abstract:

This paper presents a 6.78-MHz wireless power and bidirectional data transfer system, which is intended for applications involving battery-less implantable gastric electrical stimulation (GES). The 0X/1X regulating rectifier achieves output voltage regulation without an additional DC-DC converter, thus enhancing power conversion efficiency (PCE) within the R_{X} . By utilizing transmission power regulation (TPR), T_{X} can adaptively adjust the transmission power according to the loading of the R_{X} , reducing the power consumption during sleep mode. Moreover, this paper proposes an innovative delay-shift keying (DSK) technique for forward data transmission, enabling simultaneous voltage regulation and achieving a power conversion efficiency (PCE) of 86.1% during data transmission. Both the T_{X} and the R_{X} chips were fabricated in a 0.18- \mu m BCD process, incorporating both 5-V and 12-V devices. During sleep mode, the consumption of the T_{X} is measured at 9.24 mW, which is a 64.3% reduction compared to the same system without PA deactivation. The rectifier and charge pump achieve peak efficiencies of 86.7% and 85.8%, respectively, at a stimulus current of 6mA.
Published in: IEEE Transactions on Circuits and Systems I: Regular Papers ( Volume: 71, Issue: 11, November 2024)
Page(s): 4900 - 4911
Date of Publication: 01 July 2024

ISSN Information:

Funding Agency:

No metrics found for this document.

I. Introduction

Recently, more people are grappling with gastrointestinal problems, such as gastrointestinal disorder, which disrupts the natural muscle contractions in patients’ stomachs. Gastric electrical stimulation (GES) has been recognized as an effective approach to manage this medically resistant condition by numerous studies [1], [2], [3].

Usage
Select a Year
2025

View as

Total usage sinceJul 2024:534
01020304050JanFebMarAprMayJunJulAugSepOctNovDec47280000000000
Year Total:75
Data is updated monthly. Usage includes PDF downloads and HTML views.
Contact IEEE to Subscribe

References

References is not available for this document.