MOTOR DRIVING DEVICE, METHOD FOR CONTROLING MOTOR AND CALCULATION DEVICE FOR CALCULATING ANGLE INFORMATION OF MORTOR

摘要

The present invention relates to a motor driving device. The motor driving device of the present invention comprises: a motor controller to output a first phase signal, a second phase signal, and a third phase signal based on each signal; a gate driver to output a first phase control signal, a second phase control signal, and a third phase control signal to an external motor, respectively on the basis of the first phase signal, the second phase signal, and the third phase signal; a current sensor to detect a first phase current signal, a second phase current signal, and a third phase current signal from the first phase control signal, the second phase control signal, and the third phase control signal; and a sensorless calculating circuit to calculate a current calculation signal by using the first phase current signal, the second phase current signal, and the third phase current signal, to calculate a voltage calculation signal by using the first phase signal and the second phase signal, and to calculate each signal by using the current calculation signal and the voltage calculation signal. The present invention aims to provide a motor driving device, a control method thereof, and a calculating device to calculate angle information of a motor, capable of detecting the position of a rotor of a sensorless BLDC motor.