Gradient amplifiers for MRI scanners
High precision amplifiers with voltages >1 kV and currents up to 1000 A
What can it do?
MRI scanners require high-precision amplifiers (on the ppm scale). These amplifiers deliver pulses at voltages >1 kV and currents from 500 to 1000 A. Good MRI scans need a degree of precision in the mA range.
I therefore made a switched-mode multi-level high-power amplifier that turns an input of ±10 V into an output of ±1000 V. A couple of patent applications were submitted during the development path.