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Vinodh
02-11-2005, 09:28 PM
Hi..

I have a stepper motor with the following specs.

2 Phase
2.5V
4.6Ampere
with 6 leads

I am looking for drivers. ULN2003 and L293 would not suffice. Please help...

Vishy
02-11-2005, 09:48 PM
Have u checked theoretically if the motor actaully draws this much current in ur application?

try a mosfet based driver. try to replace a bjt based stepper motor driver circuit with a mosfet.

alternatively put the existing drivers in parallel for higher current

ajaykaher
02-12-2005, 04:08 PM
hi
i had also faced same problem of stepper motor driver card by using ULN****. u can remove ur problem by using IC L298, this IC can operate
upto 2A. u feel better by using L298.... best of luck.

Ajay Kaher
Electronics engg. - 2005
ajaysliet@yahoo.com

samrat189
02-12-2005, 09:58 PM
hey uln2003 s for unipolar and h-brdg is(298,293) s for bipolar.is it like that r is thr zany othr wayto get more.
thanku

vidur
02-13-2005, 05:44 PM
Hi everyone

Speaking of motors, i ripped apart a 3.5 " FDD recently, and salvaged 2 motors from it

One of them has a long shaft that is grooved, so that it makes the head move back 'n forth....now this motor has many multi-colored wires..I think it is a stepper, but i have no clue of which wire is which...
Has anybody seen , such a motor....plz hlp with this wiring problem

sumandeep1984
02-25-2005, 02:30 AM
For high current applications ..... H - Bridge configuration could be made from TIP140 NPN, TIP145 PNP power transistors. These can handle upto 10 A power....

Parthesh2005
03-17-2005, 03:47 PM
Hi..

I have a stepper motor with the following specs.

2 Phase
2.5V
4.6Ampere
with 6 leads

I am looking for drivers. ULN2003 and L293 would not suffice. Please help...

addy
07-01-2005, 05:44 PM
Hi..

I have a stepper motor with the following specs.

2 Phase
2.5V
4.6Ampere
with 6 leads

I am looking for drivers. ULN2003 and L293 would not suffice. Please help...

use mosfets to rive in the h bridge....
no ic chip can help u with high current motors....
u can use irfz44n.... it can bear 49amps