Mosfet H Bridge Circuit. The direction can be changed easily and the speed can be controlled. In a typical h bridge configuration as shown in figure 2 there are two high side mosfets each located on opposite sides of the bridge.
The h bridge driver ic is the chip between the arduino and the mosfet outputs. The proposed technique is a simple improvement to the gate driver based on the ir2112 driver ic by adding a capacitor to attenuate the effect of parasitic components and the freewheeling current suppressing the negative. Here we look at some variations for my power mosfet h bridge.
These circuits are often used in robotics and other applications to allow dc motors to run forwards or backwards.
In the variation above we have an enable pin to turn the h bridge on off and a separate direction pin. The h bridge motor driver circuit this circuit is called h bridge because the mosfets form the two vertical strokes and the motor forms the horizontal stroke of the alphabet h. It is the simple and elegant solution to all motor driving problems. Most dc to ac converters most ac ac converters the dc to dc push pull converter isolated dc to dc converter most motor controllers and many other kinds of power electronics use h bridges.
