Title
An Energy-Efficient High-Voltage Pulser for High-Frequency Ultrasound Medical Applications
Author
Xiao, Yidi (Student TU Delft)
Rivandi, H. (TU Delft Bio-Electronics)
Lopes Marta da Costa, T.M. (TU Delft Bio-Electronics)
Date
2023
Abstract
Emerging ultrasound (US) biomedical applications, from battery-powered US imaging to US neuromodulation, demand wearable form factor and power-efficient US transmitters. Fulfilling these specifications demands a high-frequency and power-efficient 2D US phased-array transmitter directly integrated with the ASIC. In such systems, pulsers are the most power-hungry block owing to delivering high-voltage pulses to the US transducers. This paper presents a power-efficient high-voltage pulser to drive a 2D phased-array of piezoelectric transducers. The proposed pulser employs two storage capacitors per channel to save the charge of the US transducer and reuse it in the next phase. Moreover, utilizing a stack of two low-voltage CMOS transistors enables delivering 15-MHz pulses with an amplitude of 10 V to the piezoelectric transducers. The proposed pulser is designed and simulated in 180 nm CMOS technology. The simulation results demonstrate that the proposed pulser reduces the power consumption by 40.9% compared to the conventional class D pulser.
Subject
high-voltage pulser
power-efficient driver
stacked architecture
charge recycling
To reference this document use:
http://resolver.tudelft.nl/uuid:85412880-9cb4-47ca-ab5c-6c33f89796e4
DOI
https://doi.org/10.1109/BioCAS58349.2023.10388859
Publisher
IEEE, Danvers
Embargo date
2024-07-18
ISBN
979-8-3503-0027-7
Source
Proceedings of the 2023 IEEE Biomedical Circuits and Systems Conference (BioCAS)
Event
2023 IEEE Biomedical Circuits and Systems Conference (BioCAS), 2023-10-19 → 2023-10-21, Toronto, Canada
Bibliographical note
Green Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.
Part of collection
Institutional Repository
Document type
conference paper
Rights
© 2023 Yidi Xiao, H. Rivandi, T.M. Lopes Marta da Costa