In a robot, I need to use a (24 volts 5-7 amp) DC motor, which should be controlled by a microcontroller. Now, will I get a motor driver IC for such a motor? If not, what kind of circuit will help? I am new in robotics, so I will be very thankful for any diagram with explanation.
Controlling high rating DC motor
If you don't have much experience in building electronics, I recommend you to buy an already made driver. Pololu has a bunch of them, specially for DC motors: http://www.pololu.com/category/11/brushed-dc-motor-drivers
Anyway, I would like to know if the motor is a single-phase or a three-phase one, which application is it going to have... so I can help you further.