Wu, Y;
Jiang, D;
Neshatvar, N;
Demosthenous, A;
(2021)
A power efficient time-to-current stimulator for vagal-cardiac connection after heart transplantation.
In:
2021 IEEE International Symposium on Circuits and Systems (ISCAS).
IEEE: Daegu, Korea.
Preview |
Text
2021025158.pdf - Accepted Version Download (378kB) | Preview |
Abstract
This paper presents a stimulator for a cardiac neuroprosthesis aiming to restore the parasympathetic control after heart transplantation. The stimulator is based on time-to-current conversion, instead of the conventional current mode digital-to-analog converter (DAC) that drives the output current mirrors. It uses a DAC based on capacitor charging to drive a power efficient voltage-to-current converter for output. The stimulator uses 1.8 V for system operation and 10 V for stimulation. The total power consumption is Istim × 10 V +18. u μW during the biphasic current output, with a maximum Istim of 512 μA. The stimulator was designed in CMOS 0.18 μm technology and post-layout simulations are presented.
| Type: | Proceedings paper |
|---|---|
| Title: | A power efficient time-to-current stimulator for vagal-cardiac connection after heart transplantation |
| Event: | 2021 IEEE International Symposium on Circuits and Systems (ISCAS) |
| ISBN-13: | 9781728192017 |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1109/ISCAS51556.2021.9401680 |
| Publisher version: | https://doi.org/10.1109/ISCAS51556.2021.9401680 |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | Heart transplant, implantable devices, neural stimulator, time-to-current, vagus nerve stimulation |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Electronic and Electrical Eng |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10131816 |
Archive Staff Only
 |
View Item |
