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General Mach Discussion / High Voltage Unipolar Stepper Driver

« on: October 08, 2008, 12:20:04 PM »

I have a bunch of 8V nema 34 motors.  I'm thinking about a circuit: ac to fuse to bridge-rectifier to capacitors to get apprx 160V dc for a unipolar driver that uses TIP 50s and a L297 chopper/controller.  Am I nuts(?)  Cheap parts, should make em go... anybody tried this? Any suggestions?