March 2015

DocID023491 Rev 3

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AN4144

Application note

Voltage mode control operation and parameter optimization

Enrico Poli

Introduction

which improves the performance of classic control systems.

This driving method performs smoother operation and higher microstepping resolutions and

is the best solution for applications where high precision positioning and low mechanical

noise are mandatory.

This application note describes the operating principles of Voltage mode driving and the

strategies for the regulation of the control parameters in order to fit the application

requirements.

The application note also investigates and provides solutions to one of the most common

issues in Voltage mode driving systems: the resonances of the stepper motors.

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