Daniel Kramnik (xellers), who designed oneTesla's original MIDI interrupter (named elsewhere on this tree), with a driver of his own. He built it through MIT's Power Electronics Society, and the PCB is silkscreened "MIT Power Electronics Society, H-Bridge Inverter PCB, Fall 2014". It has four FGH60N60SMD IGBTs in a full bridge, tunable-inductor phase lead, and 300 A over-current detection and UVLO. It builds on the UD2.7 design rather than starting from scratch, and he informally called it "UD2.8A" for that reason. There are two populated-board revisions. Rev A had SMA connectors and SMT LEDs. Rev B went back to molex headers after the SMA parts proved impractical on the bench. A 4s2p MMC of CDE 942C20P15K film caps (75 nF, 6 kVDC) and a pair of 1:300 current transformers for feedback and OCD, 340 V off a doubled mains bus, 24 V logic supply from a TDK-Lambda module. "Zero IGBT failures" by his own account, demonstrated at MIT's Campus Preview Weekend 2015.
Schematics and photos
schematic (sendout_bridge_rev2) 
chassis CAD render
Sources
This is the card from the driver tree, written from what the builder published. Send corrections through the forum.