hi, i am triving to drive my 5 wire unipolar stepper motor through pic...i am using driving ic is l293dd.
my motor model is Em 284 ,178936 ,stp.42D221-01. i have searched alot about this motor on the internet but i couldn't find any specification.
What i am doing is i am giving a pwm signal generated by pic 16f877a to both of the enable pins of l293dd ic.both enable pins are short.
Frequency of the pwm signal is 1.22khz and duty cycle is almost 36 %.
At this motor is taking steps but what i am observing is it is missing the steps and is not running smoothly and is causing vibrations.
is there any probllem with the pwm signal's freuency or duty cycle ?
can i give pwm signal like this?or should i give 5 v constant to both the enable pins.
why motor is missing the steps??
Also my l293dd is getting very hot during working.y??
plz help me out ......
