H bridge driver circuit

[dhunt]

yup...ur right abt that..another idea i had for preventing the momentum from carrying the arm forward was to have a fishing line or bungee cord(something strong)...that prvents it from going forward....hws that idea????

To prevent momentum carrying it forward use electric braking. Tie boths sides of the motor to ground when you want it to brake, and it will stop much quicker than just free wheeling.

[anmolt]

To prevent momentum carrying it forward use electric braking. Tie boths sides of the motor to ground when you want it to brake, and it will stop much quicker than just free wheeling.

this wont mess up the motor cuz of such a large retarding force????connect both to ground means ill have to use a switching mechanism here??

[dhunt]

this wont mess up the motor cuz of such a large retarding force????connect both to ground means ill have to use a switching mechanism here??

I'm pretty sure it won't stuff up the motor but .... To ground both ends the easiest way is to use the bottom two FET's in a bridge circuit which means doing something like your orginal circuit but I'm sure you'll manage something.