[2025] Energy management circuitry for battery-powered ultrasound patches

Making ultrasound imaging available in a wearable form-factor will open up many new applications, such as home-monitoring of cardiac patients. One of the challenges of wearable ultrasound devices is that they will need to be powered from a small battery, while the power supplies needed by a typical ultrasound transceiver include high-voltage supplies (tens of Volts) for pulse transmission. Using off-chip DC-DC converters to derive such supplies from the battery is a bulky solution.

Assignment

In this project, you will investigate circuit solutions to power high-voltage ultrasound transmit circuits directly from a battery, while using as few off-chip components as possible.

The project includes the design, tape-out and measurement of a prototype chip.

This project will be a collaboration with SonoSilicon, a TU Delft spin-off company developing chip technology for ultrasound applications. You will work as an intern at SonoSilicon’s Delft office, as well as at the Electronic Instrumentation Lab for experimental work.

Requirements

MSc students from Microelectronics. Recommended courses: Analog Circuit Design Fundamentals, Analog CMOS Design 1 and 2, Digital IC Design, Power Conversion

Interested students should send their CV, the list of courses attended, and a motivation letter.

Contact

Last modified: 2025-02-07