Hey folks, I'm looking for a circuit that would drive a bipolar stepper motor with u= p to=20 5.6A per phase. Half stepping would be nice, and microstepping even nice= r. =20 Any good circuits floating out there? I've found app-specific chips from ST and other manufacturers, but most o= f=20 these go to 2.5 or 3A. Is there a way to boost the output from these by=20 adding external drivers? Cheers, -Neil. -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads