Buck Converter and driver for Sensorless Brushless Direct Current motor

摘要

The present invention relates to a step-down conversion circuit that can prevent a noise due to a pulse signal from being superimposed and detected during the detection of a counter electromotive force of a sensorless brushless DC motor, and can extend the range of the sensorless brushless DC motor drive speed and To a sensorless brushless DC motor drive control device.;