Modeling and simulation of a DC motor driven by a series chopper is given in this study.

DC motor is driven by a step down chopper. DC source is used to supply the chopper.

The effect of utilizing a smoothing coil on the control system and the motor performance is analyzed in both cases.

The study covers the main modes of motor operation such as the transient state and steady state, at two cases. Finally simulation results are analyzed and compared for both modes.