This research presents a mathematic module for stepper motor in Matlab program
through the equations that describe the motor transfer function. It illustrates the primary
characters of the open loop for the designed module, then it offers PID contr
oller design
for controlling the motor speed.
In addition, we can use the fuzzy logic and its applications in order to design a speed
fuzzy controller. Finally, we make a comparison between the fuzzy and PID controller in
control performance and response time.
This paper offer a designed module for buck-boost DC-DC converter, able to solve
unsteady charging voltage problem, due to constant decreasing scale of transformers and
grid or solar panel voltage drop, this module has been designed using fuzzy log
ic in PWM
control and simulated in matlab and all test and its results illustrated the suitable figure.
