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I'm trying to control a stepper motor with Adafruit Motor/Stepper/Servo Shield V1, Arduino UNO and a 19V/5A power supply. The motor uses 1A/phase making the driver overheat.

Is it possible to use the two stepper controls from the driver in parallel to control only one stepper and avoid overheating?

Stepper motor Adafruit V1
(source: prometec.net)

Glorfindel
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GMatos
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  • It uses an L293D driver. See this: http://electronics.stackexchange.com/questions/108686/what-h-bridge-drivers-are-preferred-for-applications-controlling-a-low-voltage-m – Andy aka Sep 02 '16 at 13:23
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    You wouldn't think that paralleling bipolar devices was a good idea, however it actually was common in the era when these chips were a reasonable idea. But as Andy points out **they are long obsolete now** with far, far, better choices on the market. Also, if you are going to use a higher than rated voltage (which is indeed usual) you need a *chopping current regulator*, something the board you show does not seem to have. – Chris Stratton Sep 02 '16 at 14:29

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