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Old 12-01-2009, 10:39 AM   #108 (permalink)
dcb
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the rotor is not inherently magnetic though. The BLDCs seem to put the halls next to existing moving permanent magnets. With the wibbly wobbly flux angle in an induction motor, the hall effect might not have a good point of reference

...or a hall effect might actually be useful in measuring flux angle, when combined with rotor position detection.
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