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Boost real time control of stepper motor driver

Posted: 07 Aug 2014 ?? ?Print Version ?Bookmark and Share

Keywords:stepper motor? DC motor? magnetic field commutation? microprocessors? monolithic integrated?

Driving a stepper motor can be a daunting task. Whereas, providing a voltage at the terminals of a DC motor causes immediate rotation, on a stepper motor, careful magnetic field commutation must be applied in order to obtain the same behavior. In the not so distant past, said electromagnetic commutation was achieved by coding powerful microprocessors to coordinate the phase and current information administered into the power stage.

With the advent of high integration on monolithic integrated circuits, it became simpler to take into hardware all the blocks once generated through code. A stand alone IC could now control even the most intricate subjects such as phase commutation and microstepping without the need of precious microcontroller resources.

View the PDF document for more information.

Originally published by Texas Instruments Inc. at as "Intelligent Stepper Motor Driver with DRV8811/18/24/25".

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