Is because only needs to supply fixed carbon brush brush motor current can make the rotor active roll, brushless motor, to continue as brushless electric adjustable and not demand to transform the party has always supply change of magnetic field and current to drive the rotor, and thus have no inductive and non-inductive brush motor problem. and brushless, such as the above, needs time to change the current as well as the direction, so if we can always know the rotor position, on electricity, would have a lot of convenience. non-inductive motor, because don't know the rotor magnetic pole position at startup, can only be random transform current, motor, similar to & other; Receive & throughout; , there is always a time of rotor will roll up, and the rotor after rolling up, will be able to depend on the coil current change to adjust the rotor bearing, and manipulation of the current and the direction. This is why non-inductive brushless when start, there is always cut kaka symptoms. the inductive is different, with sensors, electrical modulation from the beginning will know that the rotor magnetic pole position, can directly supply the corresponding to the corresponding coil current, to drive the rotor. But it seemed like hours current motor will continue to make nothing of the noise. This is why the inductive motor at low speed when they hear the clatter of successive similar make cheep, and non-inductive doesn't. and inductive motor, there will be a special induction line, from the motor is connected to the electricity. Necessary connected with induction line in the electrically controlled and motor, to make motor operation in the inductive pattern. Advantage: non-inductive motor without sensors, capital is lower, and the ability to direct bubble water; Defect is a linear inductive motor. the advantage of inductive motor: the motor linear better, feel better; Defect is high cost, and not easy to do waterproof.
