Patent ID: 8823299

Claim:
A power supply module for a hall sensorless BLDC motor, comprising: a high-voltage/large-current power device applied with high voltage/large current and including a plurality of power devices driving the hall sensorless brushless direct current (BLDC) motor; a motor driving circuit sensing and controlling a positional signal or a velocity signal of the hall sensorless BLDC motor and generating a PWM control signal for controlling the hall sensorless BLDC motor; and a power device driving circuit driving the high-voltage/large-current power device according to the PWM control signal of the motor driving circuit, wherein the high-voltage/large-current power device, the power device driving circuit, and the motor driving circuit are CMOS-integrated on the same substrate, and wherein the power device driving circuit includes: a slew-rate controlling unit preventing the plurality of power devices from being simultaneously turned on/off; a multi-input driving circuit unit turning on/off the plurality of power devices; and an adaptive voltage controlling unit controlling the multi-input driving circuit unit according to the output load of the high-voltage/large-current power device.