Without the lead horn that brushs dc machine / guide current flow angle
[introduction] in without brush dc machine BLDC in control, no matter still do not have sensor electric machinery to carrying sensor, classics regular meeting uses lead part / guide current flow angle (Lead Angle) . Because electric machinery coil is perceptual load, the to load voltage that goes up at coil relatively so, the electric current in coil can have certain when delay, the efficiency of electric machinery of this meeting influence and generation noise shake etc. The echelon…