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Inductive Position Sensor IC
IPS2550 Datasheet
Description
The IPS2550 is a magnet-free, inductive position sensor IC that can be used for high-speed absolute position sensing in automotive, industrial, medical, and consumer applications. The IPS2550 uses the physical principle of eddy currents to detect the position of a simple metallic target that is moving above a set of coils, consisting of one transmitter coil and two receiver coils.
The three coils are typically printed as copper traces on a printed circuit board (PCB). They are arranged such that the transmitter coil induces a secondary voltage in the two receiver coils, which depends on the position of the metallic target above the coils.