Everything I have read on using Hall sensors with BLDC motors appears to use latching hall sensors which provide repeatable latching angles as the magnetic fields change at specific angles. I am wondering if an analogue hall sensor can be used to provide intermediate angles for static angle measurements are ever used? And if not then why?
It appears I have answered my own question in the affirmative by finding the paper: Position Estimation and Control of Compact BLDC Motors Based on Analog Linear Hall Effect Sensors which all though specific to pancake styled motors I'm sure is adaptable to traditional radial flux motors.
Also found information on analogue hall sensors being used in commercial motors in FAULHABER application note 162 Analog Hall Sensors