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Brushless D.C. Motors Using 8051-Microcontroller and Assembly Language-Project Presentation

Slides, Microcontrollers And Assembly Language

Post: July 3rd, 2012
Description
This is project presentation related to Microcontroller and Assembly Language course. It includes Brushless, DC, Motor, PMSM, Ordinary, BLDC, Advantages, Applications, Low, Power, High, Commutation, Power
This is project presentation related to Microcontroller and Assembly Language course. It includes Brushless, DC, Motor, PMSM, Ordinary, BLDC, Advantages, Applications, Low, Power, High, Commutation, Power
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Docsity.com Brushless DC Motor  It is a special type of permanent magnet synchronous AC motor (PMSM)  Ordinary PMSM require sinusoidal current for their operation  BLDC has stator wiring in such a way that it requires quasi-squarewave current Docsity.com Docsity.com Docsity.com How it Works  Halls Sensors sense the position of the coils  The Decoder Circuit turns appropriate switches on and off  The voltage through the specific coils turns the motor Images courtesy of Servo Magnetics (http:///flash/2-pole/2pole-bldc-motor.html) Docsity.com Advantages  Can be operate at leading, lagging & unity power factors  Can be used in feedback control loop without any        additional sensor High power-mass ratio Good heat dissipation characteristics (Heat is generated in stator – Easy to remove) Low rotor inertia High speed capabilities & higher acceleration rate High efficiency Reliable and no arcing on commutation – No brushes to ..

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