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Does anyone know the exact method of how to use the hall effect sensors on a sensored motor to determine the rotor position? I got the pin out of the connector from the ROAR rules (GND, Phase C, Phase B, Phase A, Temp, ~5.0V) and I have some connectors on order. Are the Phase A/B/C lines logic signals or are they straight from the hall effect sensors -- do I have to use my own voltage sensing / comparators to determine the motor position? If so what kind of sensitivity do I need here? Has anyone here ever made a brushless ESC? I know sensored is the easier of the two implementations, so it is the logical place to start.

My end design will be using a front-end current-limited PFM controller (rather than a PWM controller), with the standard VFD back-end (based on sensored motor / control) so it will fully integrate the voltage step-up convertor I already demonstrated in another thread with a rather typical sensored brushless ESC. Primarily designed for 'stock' or 'super stock' racing.