Inductive Proximity Switch Using TCA505 IC

The project has been designed using TCA505 Ic from Infinion.This circuit is used to design inductive proximity switches. The resonant circuit of the LC oscillator is implemented with an open half-pot ferrite and capacitance in parallel    (pin LC) if the metallic target is moved closer to the open side of half pot ferrite, energy is drawn from resonant circuit and

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