What is the power source for the motors? The actual schematic you have used would be helpful because currently the one you show is the generic one of the datasheet. Sign up using Facebook. This is what the datasheet says: I used a computer ATX power supply for that.

Uploader: Tojazil
Date Added: 24 February 2017
File Size: 54.59 Mb
Operating Systems: Windows NT/2000/XP/2003/2003/7/8/10 MacOS 10/X
Downloads: 26640
Price: Free* [*Free Regsitration Required]

L current limiting 1. Mark Booth 3 11 You now calculate the required reference voltage. I think this was 35 Deg.

Why did you omit the capacitors? What is the current limit you have set for each coil? You will need to do this twice as you do not seem to want to build it properly to start with. Sign up using Email and Password. The actual schematic you have used would be helpful because currently the one you show is the generic one of the datasheet. Do your self a favor and use a real stepper driver.

Welcome to our site! I have hooked up the step and direction pin number 4 and 5 respectively on Arduino. Articles Top Articles Search resources. This limiting will never come into shepper as the current will be limited to less than this by the winding resistance but the device will still get very hot when operated without a heat sink. Using the maximum Vsat values. By clicking “Post Your Answer”, you acknowledge that you have read our updated terms of servicel928 policy and cookie policyand that your continued use of the website is subject to these policies.


I used a computer ATX power supply for that. Also the datasheet lists several motors, what are the current specs for your specific one? Also you will be limited to quite a low stepping rate with such a low supply voltage due to the effect of the winding inductance of the stepper motor.

Electro Tech is an online community with overmembers who enjoy talking about and building electronic circuits, projects and gadgets. As you are not using a heat sink you will need to keep the current quite low as the thermal resistance to ambient without a heat sink is 35 Deg, C per watt.

When the large capacitor of the power supply is too far from the IC, a second smaller one must be foreseen near the L But even that one still drops a lot and heats up. By continuing to use this site, you are consenting to our use of cookies. C per watt from memory. Media New media New comments Search media. The thermal calculations are a bit more complicated with a heat sink as you need to know the thermal resistance of the heat sink and insulating washer If used between the device and heat sink.

Home Questions Tags Users Unanswered. Depending on the current you want to use for the motor coils the supply current may or may not be enough.


arduino – L + L circuit not working – Electrical Engineering Stack Exchange

What is steppee power source for the motors? Most probably the issues are with the oscillator or the clock pin may be the pulse is not generatingbefore posting the questionI had a quick google search which showed me I was not the only onne facing this issue.

It works good with stepper motor BUT the problem it that L turns very hot in just 10 seconds and it can blow completely after 1 minute. I did not use heat-sink yet, I just want to do experiment for this time, will add later.

L298 & L297 Based High Current Bipolar Stepper Motor Driver

What value current sense resistors are you using and what reference voltage are you using. I think in most cases it is cheaper to buy a ready made stepper driver module than to build one.

Start by doing the thermal calculations.

Those internal voltage drops are why the get so hot.