Quote:
Originally Posted by BrianG
I like the idea of torque control (although I still don't see how it could truly accomplish it without a current sensor), but after seeing people say the startup and low speed running is not as smooth, I think I'll wait...
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Torque Control without a current sensor?
This is where we get into how they are doing it. LOL
Could this be accomplished with a built-in lag time for motor rpm increase?
I'm picturing a X-Y Graph, where "ON" time FET switching is only allowed to increase as RPM increases.
How linear this is, is controlled by the torque setting.
Always before, As soon as emf stated the rotor was in position for the next phase, the next phase was switched on.
Picture, miliseconds worth of "lag time" being inserted here. The amount of the lag time, along with actual rpm increase, controlling the rate of FET switching increase.
Thoughts?