How many transistors are there in an H Bridge? I've controlled a motor going one direction using only one transistor. With an H Bridge, I can make a motor go forward, backward and brake. Does an H Bridge have only three transistors inside it to perform these functions, or does it take a larger number?
The absolute minimum number of transistors in a H bridge is 4 (one in each leg of the "H" and the motor in the middle), but there may be more depending on what voltage and control scheme is desired.