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) ...
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Exactly that's why 1/2 CV^2 does not apply. That accounts for only 36 J. The part is flying apart at 300J. There's something else going on. It could be ripple current.
BTW, what with all the lol's? Stick to the facts. Keep emotion out of this.
Sal
BTW, what with all the lol's? Stick to the facts. Keep emotion out of this.
Sal
ken white wrote: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
LOL...
You have no idea how much energy the thermistor is dissipating without monitoring the thermal curves (the thermal time constant is 194 seconds which equates to a 63% change in temperature), the ambient temperature, or the case temperature...
You are just speculating and are not looking at the details of operation.
