Inductive proximity switch circuit

Published:2012/10/21 20:30:00 Author:Ecco | Keyword: Inductive, proximity switch | From:SeekIC

The circuit includes a sinusoidal oscillator (T1), switching amplifier (T2) and relay (Im = 50mA). If metal plunger is inserted into the coils, the inductance feedback will make the oscillator oscillation stop, the switching amplifier is turned off, then the relay releases. The switch point push depth tolerance is approximately ± 2mm.



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