Do you see any problems with this arrangement and any suggestions on components?The bigest issue that I am aware of is to avoid the possibility of shoot-through.
I was looking at simply placing the coils as the load in a full-bridge MOSFET arrangement. For now we want to control the dc current through the coils with the supply line voltage and to have fastest possible rate of current switching. The exact pulse shape and amplitude specs will depend on feedback we get from tests. We are needing to produce high dE/dt pulses at pre-selected target frequencies. We want to have capability to drive the pair of coils either in series using one driver, or individually using separate drivers. The coils are 600mm diameter and number of turns is 150. 1.5-A, 3-A, 200-V half bridge gate driver, 5-V UVLO and programmable dead-time for GaNFET and MOSFET. The spec is now for square wave TTL input. We actually did work with audio amps in the early days of this project when we were using sine frequencies. Full-bridge gate drivers for high power MOSFETs essentially integrate multiple gate driver IC’s for an individual transistor onto a single chip.
Sorry for any confusion by my response to VE1BLL's suggestion to consider using audio amps. An H-bridge (full-bridge) driver is quite popular in driving loads such as brushed DC motors and it is widely used in robotics and industry.
