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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No surprise. Nothing had changed from the previous thermistor failure. We already knew the initial power-up was not the problem. The problem is P = I^2 * R. Where I is the 10A to 13A when converter starts operation and R is the resistance of the thermistor. The resistance is too high! Use 1 or 2 ohms. It probably also helps if a heatsink is attached to the thermistor.
Sal
Sal
