A Lebowski controller driving a custom power stage with 800A IGBT's. https://endless-sphere.com/forums/viewt ... 27#p963227
You can achieve similar results with a Chevy Volt/Opel Ampera inverter with ganged output stages. Some guys in the Ukraine have already done this with an unknown controller brain and by all accounts the biggest issue is the shredding of gearboxes. The Lebowski controller code is now open source.