I would like some documentaion about H bridge or some other possibiities to drive 2 DC motors., and how can I realize how the motors are controlled by a PIC16F877, given the scheme? Thank you!
Yes, using IRF540 for power module, Speed of DC motor can control by PWM. Simple circuit: One IRF540 with 3 contact Relay and a feedback module like encoder, you can control speed, direction...
See on www.Freescale.com, they have some good H brigde IC up to 20A.
Added after 8 minutes:
If you want schematic, send email to me, i 'll reply to you