H Bridge Dc Motor Control. You normally use it with a microcontroller such as an arduino to control motors. Now if we connect terminal a with ve supply and terminal b with ve supply or ground the current will flow from motor from a to b and motor will rotate in one direction say clockwise cw or forward direction.
The h bridge controller is then connected to four devices forming the legs of the bridge. An h bridge is an electronic circuit that switches the polarity of a voltage applied to a load. In this tutorial you ll learn how to control a dc motor s direction using a dc motor driver.
In the most simplistic terms an h bridge circuit can switch the polarity of the attached load.
There are various h bridge designs and some use discrete components consisting of mosfets while other designs utilize a dedicated integrated chip ic h bridge. Dc motor driver drok l298 dual h bridge motor speed controller dc 6 5v 27v 7a pwm motor regulator board 12v 24v electric motor control module industrial 160w with optocoupler isolation. In a discrete solution the designer must deal with volt age control levels timing to prevent shoot through and the proper selection of the semiconductor switches. The discrete solution also requires additional circuitry for.
