Getting brushless motors under control: techniques, approaches and solutions


Effective BLDC motor control requires careful consideration of various technologies and approaches involving power management, position sensing and feedback, and control logic.  

PMSM and brushless DC motors are replacing DC brush motors in a growing number of applications due to their superior performance in terms of efficiency, noise and reliability. In this white paper, we walk you through the general principles and certain application requirements, and show you how ST can help you master every aspect of brushless DC motor control. 

We provide two case studies. The first involves Power Tools, and how efficient and compact power electronics are critical for designing ergonomic handheld casings and extending battery life. The second case study focuses on FOC design and getting the most out of your control algorithms.

This white paper covers the following topics:

  • Driving a brushless motor
  • Specific application needs
  • Getting started with BLDC motor control
  • Case study 1: Power Tools
  • Case study 2: Improving efficiency in FoC Designs

ST will retain your browsing history and use details of the products and services that you have previously accessed, purchased or downloaded to make suggestions to you for other products and services which ST believe you will also be interested in.
ST uses the personal data that you provide directly to it and through your activity on ST websites in accordance with the Privacy Policy, to send you (directly or via ST local affiliates or distributors) newsletters, advertisements or other specific and targeted marketing material about ST products and services. Your personal data will be provided to ST local affiliates and distributors in countries located in the European Union and outside of the European Union. You can consult the list of ST local affiliates and distributors in our website’s Privacy Policy. To send you specific and targeted marketing material, the information that you provide directly to ST and/or through your activity on ST websites may also be combined with other information that ST obtains from you in another context (e.g. if you enter into a business relationship with ST, its local affiliates or distributors).