A complete stepper motor system needs three components:
• stepper motor
A device capable of generating step pulse. Can be as simple as an On/Off switch toggled quickly. However, in most applications, it is more complex device based on programmable microcontroller. Frequently, a PC computer together with software and external interface (see PPI-04) is adopted for that purpose. In such case the PC software is responsible for generating step pulse and other signals.
There are also motion controllers, like our MC-02A4, where all motion profiles are created in real time by a specialized motion processor and the PC software acts only as a Human-Machine-Interface (HMI).
A device that will translate step pulse train to a sequence of phase switching signals and then amplify them to the power level required by motor. Our drivers are constant-current drivers with microstepping as a standard feature.
A brushless, synchronous DC electric motor that rotates in fixed increments by converting phase current pulses into mechanical shaft rotation (see Step Motors). Requires a complex circuitry (a driver) to drive it.