N Channel Mosfet H Bridge. An updated version of the original with a colour coded schematic fully explained breadboard plan and a practical demonstration at the end. The problem that most people run into when using n channel mosfets for h bridges is that the mosfet used to turn on and off the positive power supply voltage vcc will not work.
This is true but it s not important unless you want the highest possible current handling. The reason it does not work is that a mosfet is a voltage controlled device transconductance. In break mode both sides of the motor are grounded through the lower n channel mosfets.
Counter emf from the motor motion acts to break the motor direction of rotation.
It is said that n channel mosfet can handle high current much better than p channel mosfet. It is said that n channel mosfet can handle high current much better than p channel mosfet. The problem that most people run into when using n channel mosfets for h bridges is that the mosfet used to turn on and off the positive power supply voltage vcc will not work. Figure 6 mosfet h bridge motor control clockwise rotation.
