Home Motor drivers About H-bridges 6-trans. Tilden H-bridge "Full-featured" H-bridge Wilf's reversing H-bridge Buffered H-bridges Bolt's 4-trans. H-bridge The Z-bridge 74*245-based driver 74*240-based driver 74*24x drives compared Stepper motor drivers Wilf's NuStepper Solarbotics' Nv BEAM Stepper Solar engines Sensors Complete robots Misc. circuits   The BEAM Circuits Collection is a BEAM Reference Library site.		Stepper motor drive circuits Stepping out... To date, I've just seen three simple circuits for driving unipolar or bipolar stepper motors: Wilf Rigter's NuStepper -- uses just a single IC ('though not one you're likely to have in your "parts box") to give you reversible motor drive Solarbotics Nv-based Circuit-- uses a single IC (and it's a common one, too -- the 74AC240) to give you motor drive in a single direction Duane Johnson's BEAM Stepper -- based on a single 74AC240, gives reversible motor drive. Then of course, if you want to cheat, ICs specifically made to drive stepper motors are commercially available as well.
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