Diagram attached. If you go back and look at my early control experiment videos they may help. Please forget about those scrs. They are totally unsuitable in any form whatsoever for a modern pwm controller build. Remember the freewheel diode and the switch each do the SAME work and disipate the SAME power and so as much care must be taken in choosing the fwd as the switch. Fortunatly , the body diode in the high side igbt works very well and the interconnect between the two devices in a dual module is optimised for low inductance. Get that link ringing and its goodnight and good luck
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Now, Cole, when you shift the gear and that little needle on the ammeter goes into the red and reads 2000 Amps, that's bad.
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