Control method of sensorless brushless direct current motor

摘要: Disclosed herein is a control method of sensorless brushless direct current (BLDC) motor, and more particularly, drive concentrated winding BLDC motor which prevents shutdown due to failures detection zero cross points (ZCPs). A reference voltage inputted comparators altered set new points. ZCPs are detected using the avoid uneven ZCPs. Phase commutation corrected corresponding reduce ripple, thereby leading stable motor. To this end, adds or subtracts preset certain value to/from produce voltage, detects with respect