An H-bridge is a type of circuit configuration commonly used to control the speed and direction of motors in robotics and electronics applications. It’s called an H-bridge because it resembles the letter “H” when represented graphically.
An H-bridge consists of four transistors (or other types of switches) that allow for the direction of current flow through the motor to be reversed. By changing the polarity of the voltage applied to the motor, the direction of its rotation can be controlled. By controlling the amount of time that the transistors are turned on and off, the speed of the motor can also be controlled.
In addition to controlling motors, H-bridges are also used to control other devices that require DC power to be switched on and off, such as solenoids, lamps, and heaters.
Overall, the H-bridge is a versatile and widely used circuit in the field of robotics and electronics due to its ability to control the speed and direction of motors and other devices.