Motor driving device for vehicle

摘要

A motor driving device for a vehicle includes a brushless DC (BLDC) motor driving device for optimizing electromagnetic compatibility (EMC). The motor driving device includes: a motor controller that controls driving of a motor in response to an operation of a switching element; and a drive semiconductor that controls a drive current of the motor controller in response to a predetermined register value, and controls electromagnetic compatibility (EMC) tuning by adjusting a switching time of the switching element in response to a drive current that is charged or discharged in or from the motor controller.

主权项

1. A motor driving device for a vehicle, comprising:
a motor controller configured to control driving of a motor in response to operation of a switching element; and a drive semiconductor configured to control a drive current of the motor controller in response to a predetermined register value, and control electromagnetic compatibility (EMC) tuning by adjusting a switching time of the switching element in response to a drive current that is charged or discharged in or from the motor controller; wherein the drive semiconductor includes:
a register configured to output a pulse width modulation (PWM) signal for adjusting a slew rate in response to the predetermined register value; anda drive unit configured to drive a current for controlling the motor controller in response to the PWM signal;a second resistor coupled between an output terminal of the drive unit and a first node; anda third resistor coupled between the first node and the motor controller.