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The Proliferated Use of Stepper Motors

Stepper motors are used to convert electrical power to mechanical power, hence they are electromechanical devices. They contain numerous coils ordered in groups known as 'phases. The motor rotates step-by-step by energizing each phase sequentially. One can achieve speed control and precise positioning by computer-controlled stepping. These motors are available in various styles and sizes with varying electrical properties.

Characteristics of a stepper motor

Speed control- One can acquire excellent control on the rotational speed by precise increments in the movements. This has a lot of scope in robotics and automation processes.

NEMA23 185oz/in 3A Stepper Motor Dual shaft (KL23H256-30-4B)

Positioning- These motors are extensively used in applications like CNC, 3D printers, X-Y plotters, Camera platforms, and much more due to their precise repeatable steps. Disk drives also make use of motors to position their read/write heads.

Low-speed torque- regular DC motors do not possess much torque at low speeds, but a stepper motor has an exceptionally maximum torque even at low speeds. Hence, they are a perfect choice for applications that require low speed along with high precision.

Various operations of a stepper motor:

The general stepper motors have a different operation as compared to DC brush motors which are capable of rotating when a voltage is applied at their terminals. Whereas, these motors effectively contain multiple electromagnets in tooth-like arrangement around a gear-shaped central piece of iron. These electromagnets are excited by the use of an external control circuit like a microcontroller.