High-voltage pulsers are crucial in medical ultrasound imaging systems, significantly influencing both transmitter's signal quality and power efficiency. In this context, we introduce a new structure for a 5-level bipolar pulser based on a voltage-doubling architecture, that is extended with four additional switches to enable charge recycling and dual-supply operation. Circuit-level simulations demonstrate substantial improvements, including reduced power consumption, enhanced harmonic rejection and higher fundamental output voltage.
An Improved Charge Recycling Bipolar Pulser Architecture for Ultrasound Imaging / Rossano, Marco; Avitabile, Gianfranco; Florio, Antonello. - (2025), pp. 1-4. ( 20th International Conference on PhD Research in Microelectronics and Electronics, PRIME 2025 ita 2025) [10.1109/prime66228.2025.11203700].
An Improved Charge Recycling Bipolar Pulser Architecture for Ultrasound Imaging
Rossano, Marco;Avitabile, Gianfranco;Florio, Antonello
2025
Abstract
High-voltage pulsers are crucial in medical ultrasound imaging systems, significantly influencing both transmitter's signal quality and power efficiency. In this context, we introduce a new structure for a 5-level bipolar pulser based on a voltage-doubling architecture, that is extended with four additional switches to enable charge recycling and dual-supply operation. Circuit-level simulations demonstrate substantial improvements, including reduced power consumption, enhanced harmonic rejection and higher fundamental output voltage.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
