The Noblitt Group, PLLC
Methods and apparatus for rotation detection of a brushed DC motor
Various embodiments of the present technology comprise a method and apparatus for rotation detection of a brushed DC motor. The method and apparatus may detect switching of the commutators and utilize signals indicative of switching to determine speed and/or rotation information of the motor. In one embodiment, the apparatus comprises an ADC, a difference circuit, an absolute value circuit, and a comparator connected in series with each other.
SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
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inventional inventional
Tsutomu
Murata