H Bridge Transistor Circuit. You normally use it with a microcontroller such as an arduino to control motors. So we need a h bridge of transistors in order to control speed as well as direction of the motor efficiently.
The term h bridge is derived from the typical graphical representation of such a circuit. Resistors r1 to r4 limit the base current of the corresponding transistors. You normally use it with a microcontroller such as an arduino to control motors.
So we need a h bridge of transistors in order to control speed as well as direction of the motor efficiently.
Here s the concept of the h bridge. This configuration of transistor has been used in h bridge to drive a motor in both clockwise and anticlockwise direction. If sw1 and sw4 are pressed simultaneously then current will flow from ve sw1 a b sw4 gnd. To build an h bridge the only option is not to use an ic chip for an h bridge.