eprintid: 10063267
rev_number: 27
eprint_status: archive
userid: 608
dir: disk0/10/06/32/67
datestamp: 2018-12-07 17:34:19
lastmod: 2021-06-15 22:06:00
status_changed: 2018-12-07 17:34:19
type: proceedings_section
metadata_visibility: show
creators_name: Mifsud, A
creators_name: Haci, D
creators_name: Ghoreishizadeh, SS
creators_name: Liu, Y
creators_name: Constandinou, TG
title: Adaptive power regulation and data delivery for multi-module implants
ispublished: pub
divisions: UCL
divisions: A01
divisions: B04
divisions: C05
divisions: F46
keywords: Implants, Uplink, Downlink, Wires, Communication cables,
Sensors, Voltage measurement
note: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
abstract: Emerging applications for implantable devices are requiring multi-unit systems with intrabody transmission of power and data through wireline interfaces. This paper proposes a novel method for power delivery within such a configuration that makes use of closed loop dynamic regulation. This is implemented for an implantable application requiring a single master and multiple identical slave devices utilising a parallel-connected 4-wire interface. The power regulation is achieved within the master unit through closed loop monitoring of the current consumption to the wired link. Simultaneous power transfer and full-duplex data communication is achieved by superimposing the power carrier and downlink data over two wires and uplink data over a second pair of wires. Measured results using a fully isolated (AC coupled) 4-wire lead, demonstrate this implementation can transmit up to 120 mW of power at 6 V (at the slave device, after eliminating any losses). The master device has a maximum efficiency of 80 % including a dominant dynamic power loss. A 6 V constant supply at the slave device is recovered 1.5 ms after a step of 22 mA.
date: 2018-03-29
date_type: published
publisher: IEEE
official_url: https://doi.org/10.1109/BIOCAS.2017.8325208
oa_status: green
full_text_type: other
language: eng
primo: open
primo_central: open_green
verified: verified_manual
elements_id: 1599335
doi: 10.1109/BIOCAS.2017.8325208
isbn_13: 9781509058037
lyricists_name: Ghoreishizadeh, Seyedeh
lyricists_id: SSGHO93
actors_name: Flynn, Bernadette
actors_id: BFFLY94
actors_role: owner
full_text_status: public
publication: 2017 IEEE Biomedical Circuits and Systems Conference, BioCAS 2017 - Proceedings
volume: 2018-J
place_of_pub: Turin, Italy
event_title: 2017  IEEE Biomedical Circuits and Systems Conference (BioCAS) 2017
book_title: Proceedings of the IEEE Biomedical Circuits and Systems Conference (BioCAS) 2017
citation:        Mifsud, A;    Haci, D;    Ghoreishizadeh, SS;    Liu, Y;    Constandinou, TG;      (2018)    Adaptive power regulation and data delivery for multi-module implants.                     In:  Proceedings of the IEEE Biomedical Circuits and Systems Conference (BioCAS) 2017.    IEEE: Turin, Italy.       Green open access   
 
document_url: https://discovery.ucl.ac.uk/id/eprint/10063267/1/2017_BioCAS_ChestPower_authorcopy.pdf