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Working of 2 phase BLDC

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Chinmay Gharat

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I need detailed (not mathematically) explanation of 2 phase BLDC motor,it's torque wave form and other such thing and also comparison between 3 phase and 2 phase BLDC.
 

Torque is proportional to Current
HP is proportional to V*I
Due to variation of torque between phases, more phases gives smoother torque.

You can search for waveforms depending on size and drivers using magnetic Hall sensors for commutation
 
ok thanks i also got most of the working in Atmel sheet on 2 phase bldc, i have one more question i want to seriously increase RPM of motor what can i do? does a force full constant current from constant current source help?
 

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