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BLDC motor for position control for brushed DC motors

A BLDC motor, used as an generator, produces an AC output voltage with amplitude roughly proportional to velocity, and frequency exactly proportional to velocity. There are two ways to try to extract ...
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Quadrature Encoder Interface Circuit

Another important thing to note about this encoder input circuit is that it also provides noise cancellation via the complementary signals provided to the comparators as well as optical isolation ...
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