Triac Snubber shows is has voltage in OFF state!

Do you have a question? Post it now! No Registration Necessary

Translate This Thread From English to

Threaded View


Hi ,
I have designed and made a triac switch , to turn ON and OFF a 3-speed
AC motor that works with 220VAC.
with tree triac series an all the triacs have a snubber (R-C) circuit.

the problem is when the circuit is in OFF state , the triac outputs
shows that it has 220V voltage(with a Phase Meter screwdriver) .
but when i check with a multimeter it doesnt show any voltage. i know
that it doesnt have a real voltage but i dont know what is the problem?


Re: Triac Snubber shows is has voltage in OFF state!



Omid wrote:
Quoted text here. Click to load it

It's normal behaviour, your screwdriver is measureing from line to
earth.


Re: Triac Snubber shows is has voltage in OFF state!


Capacitive coupling or a tiny bit of leakage.



Site Timeline