Motor-driven positioning system with reflective optical encoder

Details Motor-driven positioning system with reflective optical encoder Motor-driven positioning system with reflective optical encoder

G - Physics

05

D

G05D 3/20 (2006.01) G05B 19/23 (2006.01) H03M 1/30 (2006.01)

Patent

CA 2058317

A low cost, high resolution optical encoder for a brush- less DC motor comprises reflective sensors, and a movable disk cooperating with a stationary pattern to provide a pattern of reflective and non-reflective areas for the sensors that can be used to generate motor positional information as well as commuta- tion drive signals.

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