5.1 Modeling Using MPLAB® Mindi™
The classical way of modeling a DC motor is as two differential equations, one for the mechanical and one for the electrical dynamics as shown in below:
MPLAB Mindi is only capable of simulating circuit elements, therefore the mechanical equation is transformed into an equivalent circuit representation. This is achieved by saying that , and . This gives the differential equation:
The model of the DC motor consists of three parts; Motor_Electrical, Motor_Mechanical and Motor_Load.