Patent ID: 9231502
Filing Date: 2016-01-05
CPC Classification: H02P

Claim Text:
1. A motor control system, comprising: a voltage regulating module for receiving a voltage and performing a regulation process to the voltage to generate an electrical level regulated voltage; an auxiliary activating module for generating a constant duty cycle signal and outputting the constant duty cycle signal in a predetermined period when a motor is activated; and a drive module for receiving the electrical level regulated voltage and the constant duty cycle signal to control the motor according to the electrical level regulated voltage and the constant duty cycle signal; wherein the voltage regulating module comprises: a plurality of voltage regulating units, wherein the voltage regulating units are operable to receive the voltage and perform the regulation process to the voltage to generate a plurality of electrical level regulated voltages; wherein the drive module comprises: a pulse generating unit for generating a triangle wave; a rotational speed control circuit for receiving the electrical level regulated voltages and the triangle wave and comparing the electrical level regulated voltages and the triangle wave to generate a pulse width modulation control signal; and a drive unit for receiving the pulse width modulation control signal from the rotational speed control circuit and the constant duty cycle signal directly from the auxiliary activating module to control the motor; wherein the auxiliary activating module outputs the constant duty cycle signal in response to activation of the motor, wherein the auxiliary activating module is directly coupled to the drive module, wherein the pulse width modulation control signal outputted from the rotational speed control unit and the constant duty cycle signal outputted from the auxiliary activating module are provided to the drive unit to assist the motor in activating, wherein after the motor is activated, the auxiliary activating module stops outputting the constant duty cycle signal and the rotational speed control unit outputs the control signal to the drive unit for controlling the motor.