which mosfet to run a stepper motor

[jeremygaughan]

I'm running a 12v bipolar stepper motor on a 12f675, and I want to build two H-bridges to run my motor. I looked around for mosfets but there is too much information. Can someone suggest pnp and npn mosfets that can supply 12 volts and be activated by a pic? The stepper motors came from a 5.25 floppy and I can manually apply 12 volts and make them spin so I'm sure with the right mosfets this should be an easy project. Thanks for any suggestions

 

[richard.c]

Hi,

You could use the L298 IC for Bipolar mode - or a ULN2803 IC in Unipolar mode.

For discrete devices - have a look at the many stepper circiuts in this magazine **broken link removed**