Brushless dc drive specification _22 hollow cup principle of brushless dc motor
1, the magnetic position sensor in the motor, use morer is open the transformer. Used for three-phase planetary gear motor tracking open transformer by the stator and rotor of two parts. Stator generally there are six pole, the interval between them is 60 degrees respectively, three of them in a winding around, and in series with high frequency power supply, after another three pole respectively on secondary winding around the WA, WB, WC.
2, magnetic susceptibility, type of position sensor is to point to some of its electrical parameters change with the surrounding magnetic field according to certain rule semiconductor sensitive elements. The basic principle of hall effect and the magnetic resistance effect. Common magnetic sensor with hall element or hall integrated circuit, magnetic sensitive resistor and magnetic susceptibility diode, etc.
3, photoelectric position sensor is made use of the photoelectric effect, by to accompany the motor rotor rotating bezel and stationary sources, photocell parts, etc.
this is one of the brushless dc motor position sensor and what are the main content of the classification, I hope it can help you can use the
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