Hi there,
In order to achieve unity power factor control, the phase of the AC voltage needs to be obtained. The phase is obtained through a phase-locked loop (PLL).
Take a look for single phase control structure of the PLL ,
Another might be understandable
For such similar way I want...
Hey guys! first post here (sorry if this is the wrong section for this thread)
I came across a broken fan that uses this kind of motor to spin the blades, Ive tested the whole wiring and the motor is the one to blame.
https://en.wikipedia.org/wiki/Shaded-pole_motor
So my question is this...
I am selecting a switch to energize a 3/4 hp AC motor. I am concerned about the prospect of contact arcing with such an inductive load.
If a switch is rated at 25A @ 125 VAC, it will handle the continuous current, but might there be a reliability issue over time due to contact arcing at turn on?