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How To Decrease Noise on Your Stepper Motor Driver

by avayan • April 17, 2011 • 17 Comments

Ahhh!!! That stepper driver’s high pitch squealing is driving me nuts! Well, it has to drive you somehow as after all it is a “driver”, right? Well, nuts should not be it. It should drive your stepper motor and be done…

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H Bridges, Motors

My Chip Is Running Hot! Am I Doing Something Wrong?

by avayan • April 17, 2011 • 2 Comments

 OK, you are not doing anything wrong. Maybe you did something wrong a few years ago when you decided to be born in this universe as the laws of physics are pretty much defining that your chip will run hot.…

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Motors, Robotics, Stepper Motors

How to Select the R and C at the RCx Pins on the DRV8811 Bipolar Stepper Driver

by avayan • December 24, 2010 • 11 Comments

The DRV8811 is clearly a bipolar stepper driver that makes our lives considerably easier. It is just so simple to drive a stepper with this powerful device, as well as similar internal indexer microstepping engines, who takes care of all the nuances…

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BLDC, Motors

Tackling the Brushless DC Motor Experience

by avayan • November 8, 2010 • 17 Comments

I have been called the stepper expert at work. Although I have been developing stepper hardware and software for the last 10 years, I am hardly an expert at all. But when compared against Brushless DC Motors, or BLDC, then…

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Motors, Stepper Motors

How to Get the 2.5A Out of your DRV8811 Bipolar Stepper Motor Driver

by avayan • October 24, 2010 • 5 Comments

  When I designed the AE-MDL-STPR1 I was naive enough to think that a two layer copper and 2″ by 2″ board should be a good platform to run the DRV8811 bipolar stepper motor driver at whatever current I could…

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Motors, Stepper Motors

Taking Advantage of the DRV8811 Microstepping Driver

by avayan • September 26, 2010 • 0 Comments

Driving a stepper motor has its advantages and its disadvantages. For example, there is no better way to control rotation speed and position than with a stepper. Sure, you may argue that Brushed and Brushless motors on servo systems are…

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