Motor rotation detector apparatus

摘要

A leadless motor rotation detector apparatus for determining the direction of shaft rotation of a motor providing a fluctuating magnetic field when rotating includes: at least two sensors separated a predetermined distance from one another. Each sensor senses the magnetic field and generates a corresponding sensor signal having an amplitude and phase associated with said sensed magnetic field. A processor is responsive to the sensor signals, and compares temporal aspects associated with the relative phase of each of the sensor signals to determine a leading or lagging signal. The leading or lagging signal is associated with a corresponding one of the at least two sensors and is indicative of the direction of motor rotation.