Unipolar stepper motor with ULN2003?

[musicworld1]

hi

Last time I was designing like this . I attack this to computer before start computer. After start I write codes and run only 3 steps. I find that IC and motor are going very much hot, then I disconnect all connections to IC. It really was near to be burnt, if I do not disconnect. What was the problem in circuit? I think it may be in its ground or +12V wire. Is it?

[Nyerguds]

wtf... spambot?

[chickendippers]

That is so random I'm tempted to keep it

[musicworld1]

I have found the reason not the solution, it is that I am using the computer power supply. The +12V point has 6 Amp, as written on info sticker of computer power supply. But ULN2003 require only 0.5 Amp, that’s why my whole system was getting so much hot. But how to arrange the correct power supply (12V & 0.5 Amp). Which is cheep & easy source?

[Nyerguds]

If you ask me, this is an inventive new kind of spambot... better to kick it out before you see what it does. Which will inevitably be, putting spam links in its profile and posts.

[musicworld1]

I find some thing written on my motor. That is:
60C 45
5 DEG 13 (ohm) MAS
You can also read more about this motor from http://www.compucanjes.com/products/view/14268.html. what is basic formula to set at any system.

[Ccveteran]

He is giving us a degree in Engineering orl some sort xD. anyways it hasbno relevence with Command & Conquer whatsoever