In this paper, a suitable design of a dc controller is proposed and implemented, as a prototype and for a software simulation, so that is capable to overcome different hazards in operation. Different techniques were selected to reach the efficient operation speed control unit. A simple and efficient firing unit is built, especially for this controller which can be implemented and repaired. The armature model has been built up and it is used in the simulation design in order to represents the armature rotation and operation study possible under different conditions. From the OrCAD Pspice 16.9 Simulator ,some transient and steady state results were taken like (voltage,
current, torque, speed),at load and no load conditions. An open loop prototype drive were implemented and operated, so that deferent results were taken, this results comparing with a theory refers to good agreement