Free Elektor Article: Precision Control for DC Motors

Free Elektor Article: Precision Control for DC Motors


This control circuit will provide the correct rotational speed and direction of a 12-V DC motor. Nothing special in that? But there is definitely, when you consider the multitude of potential options for actuating the motor. You can adjust the speed manually with a potentiometer (‘pot’), using a DC voltage level between 0 and 5 (or 10 V) or even digitally using I2C.

Go to the article page and download a pdf copy of this back article. Downloading is free to all Elektor e-zine subscribers.

Original publication: Elektor magazine 3 / 2016 (May & June).

Mike is the founder and editor of, an electronics engineering community/news and project sharing platform. He studied Electronics and Physics and enjoys everything that has moving electrons and fun. His interests lying on solar cells, microcontrollers and switchmode power supplies. Feel free to reach him for feedback, random tips or just to say hello :-)

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