DC drives are essential components in various industrial applications and play a crucial role in controlling the speed, torque and direction of DC motors. DC drives work by converting AC power into DC power and regulating the voltage and current supplied to the DC motor. The AC power is first rectified to DC power, and the resulting DC voltage is smoothed to eliminate any fluctuations. The smoothed DC voltage is then adjusted by the drive to the desired level, providing precise control of the DC motor's speed, torque, and direction. Another attribute that DC drives have are two forms of control: control of the armature of the motor (main winding) and separate control of the field. This helps control torque of the load to nearly 100% throughout the entire 0-100% speed range. This control also helps DC drives to utilize field weakening in an effort to go higher in rpm when needed.