Brushless motor expert brushless motor rotation

No electromagnetic field transformation, how to let the brushless motor rotation? Rely on, in short, change the input to the brushless motor stator coil of alternating current wave frequency and waveform, the winding coil around a rotating magnetic field, electrical geometry axis on the magnetic field to drive the rotor permanent magnet magnetic rotation, the motor turns up. The performance of the planetary gear motor and the number of magnetic steel, magnetic steel, magnetic flux intensity factors such as input voltage, the motor size, more with brushless motor control performance has much to do, because the input is the direct current, current need electronic governor turned it into three phase alternating current (ac), also need to receive control signal from the remote control receiver, control motor speed, to meet the needs of the model using. In general, the structure of the brushless motor is relatively simple really decide its use or the performance of brushless electronic governor, good electronic governor needs a single-chip microcomputer control program design, circuit design, complex processing technology such as overall control process, so the prices are much higher than a brush motor.


by permanent magnet brushless dc motor (BLDCM), multipolar winding of the stator and rotor position sensor, etc. Position sensing according to the change of rotor position, along a certain sequence of stator winding current converter. The working voltage of stator winding electronic switching circuit controlled by the position sensor output. Position sensor with magnetic susceptibility, photoelectric and electromagnetic three types. Using magnetic susceptibility type position sensor brushless dc motor, 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 dc motor, the stator component in a certain position 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.
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