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
Salvo wrote:
The point is, the circuit in question has only 36 J. It takes 300J for the part to fly apart. And it is flying apart. 1/2CV^2 has nothing to do with the failure!
Sal
That 300J rating is probably for a cold thermistor (5 ohms). I assume it's flying apart because the thermistor is hot on start-up, presenting a much shorter time constant for charging those caps. At tens of milliohms, 36J may be too much.
