Looking for documents about BLDC motor and sensorless drive

[thamtukhorach]

BLDC Motor simulation!

I need some documents about BLDC motor and its drive.
please hepl me!

Added after 28 seconds:

I need some documents about BLDC motor and its drive.
please hepl me!
11111111111

 

[treez]

-in 98 months, nobody answered your simple question, and this indicates the air of secrecy which surrounds the world of motor drives........this simple thread here also will never be answered...ever.
https://www.edaboard.com/threads/316363/
(its an industrial secret).
Can anyone explain why in a voltage source inverter 3 phase bldc drive, the igbt's get commutated from coil to coil as expected, but also commutated on and off at high frequency while the particular phase coil is "ON".?