Capacitive Energy Storage for Magnetic Resonant Imaging Gradient Driver

• Published in: 2019 IEEE Applied Power Electronics Conference and Exposition (APEC) pp. 695 - 700
• Main Authors: Singh, Yash Veer, Sabate, Juan, Wang, Ruxi
• Format: Conference Proceeding
• Language: English
• Published: IEEE 01.03.2019
• Subjects: AC-DC power converters; Capacitors; Coils; Energy storage; gradient amplifiers; Inverters; Magnetic resonance imaging; magnetic resonance imaging (MRI); phase-shifted zero voltage switching (ZVS); power distribution unit (PDU); Power supplies; pulsed power

The magnetic resonance imaging (MRI) gradient driver is a high-performance inverter that provides large currents, >1000A, for the gradient magnetic fields used for imaging. It is challenging to achieve the required performance with the fast transitions on current pulses driven with high voltages,...