@inproceedings{Mifsud:2018:10.1109/BIOCAS.2017.8325208,
author = {Mifsud, A and Haci, D and Ghoreishizadeh, SS and Liu, Y and Constandinou, TG},
doi = {10.1109/BIOCAS.2017.8325208},
pages = {1--4},
title = {Adaptive power regulation and data delivery for multi-module implants},
url = {http://dx.doi.org/10.1109/BIOCAS.2017.8325208},
year = {2018}
}

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TY  - CPAPER
AB  - 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.
AU  - Mifsud,A
AU  - Haci,D
AU  - Ghoreishizadeh,SS
AU  - Liu,Y
AU  - Constandinou,TG
DO  - 10.1109/BIOCAS.2017.8325208
EP  - 4
PY  - 2018///
SP  - 1
TI  - Adaptive power regulation and data delivery for multi-module implants
UR  - http://dx.doi.org/10.1109/BIOCAS.2017.8325208
ER  - 

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