Motor Controller Chip

Go to IRF.com and look at MOSFET driver chips. You'll need one of those and an H-Bridge of MOSFETs, which depending on how much current you need to switch, may also be available as a single chip.

Try the following link:

http://www.st.com/stonline/products/literature/ds/1328/l293b.pdf

Agur!

rohm 6221 the newest h bridge drive for dc motor. try it.

Allegro makes a large variety of motor controllers and power ICs. They make everything from simple half-bridges all the way to stepper motor controllers and brushless motor drivers.

I've used several of their products in a number of commercial and hobbyist projects with great results.

http://www.allegromicro.com/ic/

The_curious_one, my apologies if I have not understood the post correctly. My feeling is that you can do the job very easily with two relays and simple transistor circuitry to drive these relays without going for any chip.

1. Off - Both relays de-energized.

2. ccw - Relay A on, B off

3. cw - Relay B on, A off

There is a standard arrangement to interlock the contacts for no out-put, in case of such a fault that both relays get energized.

Or, you can use two switches -- one DPDT for direction, and another SPST for ON/OFF.

As other messages say. An H bridge controler is what you are looking for.

open this link. it might point you in the right direction.

http://ww1.microchip.com/downloads/en/devicedoc/21421d.pdf