If you are looking for something to drive the mosfets in the H-bridge with a signal from your microcontroller, I have used the LT1158. It seems pretty robust and can adequately drive paralleled mosfets for more power. There are other drivers available, but I like this one because it requires only a single PWM input to drive both top and bottom mosfets. In other words, you don't have to worry about programming a delay to avoid having both top and bottom conducting at the same time. John