stepper motor… please help

[cool]

 

hii.

i have interfaced a stepper motor with my microcontroller

 

the stepper motor has a voltage rating of 24 volts

i have used ic l293d as a stepper motor driver to control my stepper motor.

i am using wave drive mode(single phase) to rotate my motor ..because full drive causes the l293d to over heat..

 

though the motor rotates perfectly as programmed

 

but

1) it stops to rotates under slightest load.

 2) l293d heats too much 

 

plz guide me how i can increase the power of my stepper motor…

[Dexter]

use gearde servo motor to have higher torque

 

[AJISH ALFRED]

Increase the off time between pulses to avoid overheating of the IC. To get maximum power you should perfectly tune the pulse width at a particular load.

 

[D.V.G. Krishna]

insted of L293D (works only at 600mA current)

use ULN2003 

its a darlington array 

for driving stepper motor you need connect the common pin of stepper and 9th pin of 2003 to supply and 8 pinof 2003 to gnd.

 

dont forget connect the gnd of microcontroller to gnd of 2003

 

the connect the remaining terminals of stepper motor to pin 16,15,14,13 of 2003 . then the controll pins will be 1,2,3,4 respectively

 

http://homemaderobo.blogspot.in/2012/03/stepper-motor.html

 

 

[AJISH ALFRED]

Plz ell me the part number of the motor? Are you powering the motor l293d using same 5V supply? L293d is normally used to drive DC motors in both directions. For stepper motor driving, you better use ULN200X series ICs.

[Author]

Posts