Converter In-Rush Thermistors etc, UPDATE -4
UPDATE on 17 Nov, Update 2 on 22 Nov, Update 3 on 16 Jan 14, Update 4 on 19 Oct 14. --------------- In a recent thread there was mention of how you can wreck your gizmo (in my case a converter) ...
Forum Discussion
So everybody, need a hand here with this page 4/12 stuff. I can't figure out what is the "in rush current" and "the allowed in-rush current" and the "desired current limit" which??? is the difference between them??? So the thermistor only has to stop that much of it???
We have that rule of thumb using 1/3 of the in rush current, but is what info you get from knowing the diode bridge spec the same thing as the in- rush you would see on a scope that you take 1/3 of?
I just want to know (I think!) the desired limit amps to use with that 170v that keeps getting waved around so I can get minimum R :(
EDIT: reading back in the thread I see where there is the in-rush current and then the steady current. the steady current is supposed to be 13a.
I don't understand the relationship with the 25 to 50a spec of the diode bridge to the 13a steady current. If 13a is it then why do I need R to handle 25 to 50? or do I? :(
We have that rule of thumb using 1/3 of the in rush current, but is what info you get from knowing the diode bridge spec the same thing as the in- rush you would see on a scope that you take 1/3 of?
I just want to know (I think!) the desired limit amps to use with that 170v that keeps getting waved around so I can get minimum R :(
EDIT: reading back in the thread I see where there is the in-rush current and then the steady current. the steady current is supposed to be 13a.
I don't understand the relationship with the 25 to 50a spec of the diode bridge to the 13a steady current. If 13a is it then why do I need R to handle 25 to 50? or do I? :(
