Use of N4L PSM series with Linear Variable Differential Transformers

An LVDT (Linear Variable Differential Transformer) consists of a transformer with one primary winding, two secondary windings and a movable fixture. With the primary winding at the desired voltage and frequency, the size and relative phase of secondary winding changes as soon as the luminaire is moved.

There are two ways to detect the relocation: ratiometric and differential. This is what the N4L application note below is about.


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