An Energy-Autonomous Power-and-Data Telemetry Circuit With Digital-Assisted-PLL-Based BPSK Demodulator for Implantable Flexible Electronics Applications

Wireless power transmission and data telemetry technology has been widely adopted in healthcare applications based on flexible electronics. It is challenging to achieve high data rate (up to Mbps), low bit-error-rate (BER< 0.1%) data telemetry, as well as simultaneous high ener...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Luominghao Pan, Mingyi Chen, Yifei Chen, Siyao Zhu, Yan Liu
Formato:	article
Lenguaje:	EN
Publicado:	IEEE 2021
Materias:	Flexible electronics power-and-data telemetry BPSK PLL-19 LL-based demodulator Electric apparatus and materials. Electric circuits. Electric networks TK452-454.4
Acceso en línea:	https://doaj.org/article/39e4355b1fdf4d49b9c0304bd1e27693
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:39e4355b1fdf4d49b9c0304bd1e27693
record_format	dspace
spelling	oai:doaj.org-article:39e4355b1fdf4d49b9c0304bd1e276932021-11-25T00:01:14ZAn Energy-Autonomous Power-and-Data Telemetry Circuit With Digital-Assisted-PLL-Based BPSK Demodulator for Implantable Flexible Electronics Applications2644-122510.1109/OJCAS.2021.3119931https://doaj.org/article/39e4355b1fdf4d49b9c0304bd1e276932021-01-01T00:00:00Zhttps://ieeexplore.ieee.org/document/9626074/https://doaj.org/toc/2644-1225Wireless power transmission and data telemetry technology has been widely adopted in healthcare applications based on flexible electronics. It is challenging to achieve high data rate (up to Mbps), low bit-error-rate (BER< 0.1%) data telemetry, as well as simultaneous high energy-efficiency power transmission, with small-volume flexible devices. In this paper, an energy-autonomous power-and-data telemetry circuit with digital-assisted-phase lock loop (PLL)-based binary-phase-shift-keying (BPSK) demodulator for implantable flexible electronics applications has been proposed. Only a single pair of coils has been employed to transmit both power and data based on a BPSK modulated Class-E amplifier. The energy recovery circuit enables a battery-less energy-autonomous implantable device. The proposed digital-assisted control circuitry resets the PLL to maintain the lock state and demodulate the BPSK data. As a result, the maximum data rate is no longer limited by the PLL’s bandwidth, which can be improved significantly. The chip has been implemented with standard 180nm CMOS process, occupying an area of 0.96 mm<sup>2</sup>. The post-layout simulation shows up to 2.26 Mbps data rate can be achieved with a low BER less than 8.6x10<sup>−5</sup> with the coupling factor ranging from 0.13 to 0.17. Thanks to the digital-assisted-PLL-based demodulator, the power consumption of the receiver is only <inline-formula> <tex-math notation="LaTeX">$817.4 ~\mu \text{W}$ </tex-math></inline-formula> and the demodulator Figure-of-Merit (FoM) is 362 pJ/bit with 13.56 MHz carrier frequency. The energy-autonomous circuit based on a single and small-volume pair of coils demonstrates its potential capability to be applied to various kinds of implantable biomedical applications.Luominghao PanMingyi ChenYifei ChenSiyao ZhuYan LiuIEEEarticleFlexible electronicspower-and-data telemetryBPSKPLL-19 LL-based demodulatorElectric apparatus and materials. Electric circuits. Electric networksTK452-454.4ENIEEE Open Journal of Circuits and Systems, Vol 2, Pp 721-731 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Flexible electronics power-and-data telemetry BPSK PLL-19 LL-based demodulator Electric apparatus and materials. Electric circuits. Electric networks TK452-454.4
spellingShingle	Flexible electronics power-and-data telemetry BPSK PLL-19 LL-based demodulator Electric apparatus and materials. Electric circuits. Electric networks TK452-454.4 Luominghao Pan Mingyi Chen Yifei Chen Siyao Zhu Yan Liu An Energy-Autonomous Power-and-Data Telemetry Circuit With Digital-Assisted-PLL-Based BPSK Demodulator for Implantable Flexible Electronics Applications
description	Wireless power transmission and data telemetry technology has been widely adopted in healthcare applications based on flexible electronics. It is challenging to achieve high data rate (up to Mbps), low bit-error-rate (BER< 0.1%) data telemetry, as well as simultaneous high energy-efficiency power transmission, with small-volume flexible devices. In this paper, an energy-autonomous power-and-data telemetry circuit with digital-assisted-phase lock loop (PLL)-based binary-phase-shift-keying (BPSK) demodulator for implantable flexible electronics applications has been proposed. Only a single pair of coils has been employed to transmit both power and data based on a BPSK modulated Class-E amplifier. The energy recovery circuit enables a battery-less energy-autonomous implantable device. The proposed digital-assisted control circuitry resets the PLL to maintain the lock state and demodulate the BPSK data. As a result, the maximum data rate is no longer limited by the PLL’s bandwidth, which can be improved significantly. The chip has been implemented with standard 180nm CMOS process, occupying an area of 0.96 mm<sup>2</sup>. The post-layout simulation shows up to 2.26 Mbps data rate can be achieved with a low BER less than 8.6x10<sup>−5</sup> with the coupling factor ranging from 0.13 to 0.17. Thanks to the digital-assisted-PLL-based demodulator, the power consumption of the receiver is only <inline-formula> <tex-math notation="LaTeX">$817.4 ~\mu \text{W}$ </tex-math></inline-formula> and the demodulator Figure-of-Merit (FoM) is 362 pJ/bit with 13.56 MHz carrier frequency. The energy-autonomous circuit based on a single and small-volume pair of coils demonstrates its potential capability to be applied to various kinds of implantable biomedical applications.
format	article
author	Luominghao Pan Mingyi Chen Yifei Chen Siyao Zhu Yan Liu
author_facet	Luominghao Pan Mingyi Chen Yifei Chen Siyao Zhu Yan Liu
author_sort	Luominghao Pan
title	An Energy-Autonomous Power-and-Data Telemetry Circuit With Digital-Assisted-PLL-Based BPSK Demodulator for Implantable Flexible Electronics Applications
title_short	An Energy-Autonomous Power-and-Data Telemetry Circuit With Digital-Assisted-PLL-Based BPSK Demodulator for Implantable Flexible Electronics Applications
title_full	An Energy-Autonomous Power-and-Data Telemetry Circuit With Digital-Assisted-PLL-Based BPSK Demodulator for Implantable Flexible Electronics Applications
title_fullStr	An Energy-Autonomous Power-and-Data Telemetry Circuit With Digital-Assisted-PLL-Based BPSK Demodulator for Implantable Flexible Electronics Applications
title_full_unstemmed	An Energy-Autonomous Power-and-Data Telemetry Circuit With Digital-Assisted-PLL-Based BPSK Demodulator for Implantable Flexible Electronics Applications
title_sort	energy-autonomous power-and-data telemetry circuit with digital-assisted-pll-based bpsk demodulator for implantable flexible electronics applications
publisher	IEEE
publishDate	2021
url	https://doaj.org/article/39e4355b1fdf4d49b9c0304bd1e27693
work_keys_str_mv	AT luominghaopan anenergyautonomouspoweranddatatelemetrycircuitwithdigitalassistedpllbasedbpskdemodulatorforimplantableflexibleelectronicsapplications AT mingyichen anenergyautonomouspoweranddatatelemetrycircuitwithdigitalassistedpllbasedbpskdemodulatorforimplantableflexibleelectronicsapplications AT yifeichen anenergyautonomouspoweranddatatelemetrycircuitwithdigitalassistedpllbasedbpskdemodulatorforimplantableflexibleelectronicsapplications AT siyaozhu anenergyautonomouspoweranddatatelemetrycircuitwithdigitalassistedpllbasedbpskdemodulatorforimplantableflexibleelectronicsapplications AT yanliu anenergyautonomouspoweranddatatelemetrycircuitwithdigitalassistedpllbasedbpskdemodulatorforimplantableflexibleelectronicsapplications AT luominghaopan energyautonomouspoweranddatatelemetrycircuitwithdigitalassistedpllbasedbpskdemodulatorforimplantableflexibleelectronicsapplications AT mingyichen energyautonomouspoweranddatatelemetrycircuitwithdigitalassistedpllbasedbpskdemodulatorforimplantableflexibleelectronicsapplications AT yifeichen energyautonomouspoweranddatatelemetrycircuitwithdigitalassistedpllbasedbpskdemodulatorforimplantableflexibleelectronicsapplications AT siyaozhu energyautonomouspoweranddatatelemetrycircuitwithdigitalassistedpllbasedbpskdemodulatorforimplantableflexibleelectronicsapplications AT yanliu energyautonomouspoweranddatatelemetrycircuitwithdigitalassistedpllbasedbpskdemodulatorforimplantableflexibleelectronicsapplications
_version_	1718414688144850944

An Energy-Autonomous Power-and-Data Telemetry Circuit With Digital-Assisted-PLL-Based BPSK Demodulator for Implantable Flexible Electronics Applications

Ejemplares similares