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Carbon brushes usually be used in a direct current machine, used to cooperate with the commutator to realize commutation and it will direct current into ac, dc motor driver turn now brushless dc motor used more and more widely, it use silicon controlled circuit instead of brush realize commutation, can achieve high speed large capacity low noise and some ac motor use carbon brushes and conducting ring, for example, it has the rotor winding, so how to turn on the rotor provide current? Carbon brushes with co |
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