maham ahmed
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i am striving to drive my 5 wire unipolar stepper motor through microcontroller...i am using driving ic 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.
now i am giving a pwm signal generated by pic 16f877a to both of the enable pins of l293dd ic and 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 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 heats up during working.
plz help me out ......
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.
now i am giving a pwm signal generated by pic 16f877a to both of the enable pins of l293dd ic and 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 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 heats up during working.
plz help me out ......
