Recent content by 777

I poor understand you... Do you mean such a circuit?

You may use sound detection - when you direct on the glass a pulse of a sound, you will receive 2 (and even more) responces - first (big) from the surface and all other shifted in time T=S/V, where S - thickness, and V - speed of sound inside of glass. And you can take such an info from the...

Forget about capacitor. That is not a real circuit, and Vin is a voltage source, and voltage source always have zero resistance - will you add to it capacitor (by the way, real capacitor will not help ideal voltage source - it has his own ESR) or not. What about inductor - I am agree with 2...

In case manufacturer does not tell you truth about protection, it is better install your own, and another reason to do that if you do not know exactly how this protection works - maybe it protects each phase separately, and do you know what will occure in the 3-phase grid, feeding with 2 or 1...