Brushless direct current (BLDC) machine Bipolar - Unipolar Driving Circuit education study

Abstract

Bipolar and unipolar driver circuits were designed and developed in order to control BLDC motor parameters in a laboratory environment. The characteristics of the operating parameters are mathematically and graphically presented in a trial. BLDC motor bipolar and unipolar drive features are given in detail to support students' theoretical understanding. The reason is to acquaint the students with BLDC motor bipolar and unipolar driving, especially when studying the dynamic behavior of the electrical motors from starting, during stable working to the transient operating phase. This study is also intended to obtain efficient operating parameters by using minimum electronic devices compared to other identical motor and driving circuits. The main goal is to provide students with the best practical observation and theoretical information, designing a device which is simple and easily understood. (C) 2010 Elsevier Ltd. All rights reserved.