L298, L297 Stepper Driver

[abbe]

Two phase bipolar stepper motor circuit.
Proper ground important
Use at your own risk

[DimiOrla]

Hallo Abbe,

It looks very goed.

Greetings Dimitris.

[gorantec]

Hello Abbe ,

Can you please tell me what interface did you use i see on the picture and i like to know can you send me some link where to find scheme ? and also please let me know are this driver work ? becosue i have build one driver from other schem and dont work

Please help me

[martinw]

Dear abbe,

Good job!

One thing that you may need to do is to make the heatsinking of the L298s a bit more substantial if you are putting a lot of current through them, even though you seem to be using a fan on the aluminium angle. Angle has a whole lot less capacity as a heatsink compared to finned , purpose-designed, products

Just a thought.

Best wishes,

Martin

[future Kwong]

Hi, if use a unbipolar stepper motor,
I suppose that L297+sla7026 will be a good combination,not only the current will be 3A,also the diode can be integration in the IC,which can save space.

[student1616]

All those SLA chips are very hard to find.
i tried for SLA7078 and 7062 for months.but failed.so i moved to Linistepper,which worked like charm.(still i liked SLA chips,as they are all in one controllers)

[elforum]

Hello to all

This is very simple L297/L298

[elforum]

Originally Posted by student1616 All those SLA chips are very hard to find. i tried for SLA7078 and 7062 for months.but failed.so i moved to Linistepper,which worked like charm.(still i liked SLA chips,as they are all in one controllers)

Sla7062m board, very simple and small

[student1616]

L297+L298 combo is good.but it lack of micro stepping.and it makes the stepper hot too.i tried and build this combo already.but it didn't gave me as much satisfaction as linistepper did.
iam quite interested in SLA chips but as i said before they are almost impossible for me to find.is it possible to get some samples? can any one guide me here?

[elforum]

I bought SLA from Farnell

[student1616]

how much they charged? (each)

[elforum]

7 Euro