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

摘要

Provided is a motor driving device. The motor driving device includes a motor controller configured to output a first phase signal, a second phase signal, and a third phase signal on the basis of an angle signal, a gate driver configured to output a first phase control signal, a second phase control signal, and a third phase control signal to an external motor on the basis of the first phase signal, the second phase signal, and the third phase signal, respectively, a current sensor configured 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 calculation circuit configured to calculate a current calculation signal using the first phase current signal, the second phase current signal, and the third phase current signal, to calculate a voltage calculation signal using the first phase signal and the second phase signal, and to calculate the angle signal using the current calculation signal and the voltage calculation signal.

主权项

1. A motor driving device comprising:
a motor controller configured to output a first phase signal, a second phase signal, and a third phase signal on the basis of an angle signal; a gate driver configured to output a first phase control signal, a second phase control signal, and a third phase control signal to an external motor on the basis of the first phase signal, the second phase signal, and the third phase signal, respectively; a current sensor configured 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 calculation circuit configured to calculate a current calculation signal using the first phase current signal, the second phase current signal, and the third phase current signal, to calculate a voltage calculation signal using the first phase signal and the second phase signal, and to calculate the angle signal using the current calculation signal and the voltage calculation signal.