Sensor brushless motor controller is the core part of motor controller, to understand the whole operation of the motor controller, understand its sensor is crucial, the following is to introduce the working principle of the sensor brushless motor controller. Using magnetic susceptibility type position sensor brushless motor controller, the magnetic sensor installed on the stator component, used to detect magnetic fields produced by permanent magnets, the rotor rotates. Adopts photoelectric position sensor brushless motor controller, in a certain position on the stator component is configured with a photoelectric sensor, mounted on the rotor screen, light source for light emitting diode or small light bulb. The rotor rotates, due to the effect of the mask, the stator on the photosensitive components will be in a certain frequency between intermittent pulse signal. Using electromagnetic position sensor brushless dc motor, is in the electromagnetic sensors are installed on the stator component parts, when permanent magnet rotor position changes, electromagnetic effect will make the electromagnetic sensor produces high frequency modulation signal.
