D.C. Drives

DC drives are thyristor based phase controllers employed for controlling the speed and/or torque of DC motors. These are employed in very high power applications, such as locomotives, where high power capability of the thyristors and the simplicity of the design can make them a more attractive proposition than transistor based controllers. The precise speed and torque control with power regeneration capability given by the DC systems helps user build a accurate control system with a greater price performance ratio.