Development of a medical grade 250V power supply unit for use in SURF ultrasound scanners

Abstract

This report considers the design, calculation and manufacturing of a Switching Mode Power Supply for a SURF ultrasound scanner. The objective is obtaining an output voltage for feeding the amplifiers of the transducers, with a low noise and high stability signal, between 2,5V and 250V approximately. The voltage level is regulated from the ultrasound scanner and the size of the Power Supply is limited by the physical dimensions of the scanner.