DC Motor

 DC Motor Theory   Basics of Mechanical System  Basics of Electrical system

Transfer function

Simulating in Simulink

DCMotorData.m

DCMotorTf.mdl

IF L is small, it can be neglected. (the electrical time constant is much smaller then the mechanical time constant)

Modeling after block diagram reduction

DCMotorData.m

DCMotorTf1.mdl

IF L is small, it can be neglected. (the electrical time constant is much small then the mechanical time constant)

State space representation

DCMotorDataSS.m

DCMotorSS.mdl

DCMotorDataMaxon.m

DCMotorMaxon1.mdl

Extra information in the catalog

Electromechanical Time Constant is the time needed by the rotor, with unloaded shaft, to reach 63% of the no load speed from standstill at nominal voltage. (Note: The Mechanical Time Constant Defined in the catalog of maxon motor is Electromechanical Time Constant)