Need help controlling 110vDC motor

causalitist said:

i got a 130vdc 3.5hp treadmill motor (must have been a big treadmill!)
i run it at 148vdc from lithium polymers. but a full wave bridge and a few big caps is the same.. this powers a bicycle.

i used a sg3524 ... almost half the pins are grounded out or connected together, so its really easy circuit.. i use a murata dc-dc 1watt converter to get my 12v (few bucks) for the chip... but u guys got AC so whatever...

anyway... all u need is a few caps , a few R's and a trimpot for throttle,.. then output to a tc4422 driver... then output that to whatever.

igbt u may want negative gate volts at turn off, so go with a driver like td351 that has active miller clamp.... or actually use negative volts.

i bet the schematic is on this site lol..

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