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Dienstag, 17. Mai 2011

What is Permanent magnet brushless dc motor?
Von zepmotor, 04:33

 

Permanent magnet brushless DC motor is dc motor that establish by one or more blocks of permanent magnet. Its performance is resembled with excited DC motor, which can though the method of changing the Armature voltage to change the speed. In comparison of excited DC motor, it equipped with smaller size, higher efficiency, more simple structure and less copper etc. advantages. Permanent magnet brushless DC motor is the main type of small power DC motor.

In the light of different materials used, permanent magnet brushless DC motor is divided into Alnico permanent magnet DC motor, ferrite and rare earth permanent magnet DC motor permanent magnet DC motor. Alnico permanent magnet brushless DC motor requires consume large amounts of precious metals, the price is dear, but it is adaptable to high temperature.

 

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