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
ktmrfs wrote:Salvo wrote:
Looking at 3 different converter manufacturers surge current limit resistance:
Parallax: 2 ohm
Progressive Dynamics: 1 ohm
Iota: No thermistor, ac source resistance and converter input resistance is adequate.
None of these are failing! Their surge current limit is perfect in protecting all parts.
Tell me again why do you want 5 ohm?
Sal
without schematics it's hard to determine how input current is limited in each design.
What a cop-out. Look at the PD patent schematic. All the converters have similar design.
The PD and Iota are not power factor corrected, the boondocker is.
Power factor correction is made after the capacitor bank. It has no effect on turn-on surge.
The PD and Iota have lower max output current.
So what? The 55A Iota doesn't need a thermistor. But you're telling us this 100A converter needs 5 ohm?
Instead of wimping out and saying "I'm conservative and I think we need 5 ohm", why not provide some real analysis showing the need for 5 ohm. So far we've seen nada. And don't use the excuse there's no schematic. Use the PD schematic. Let's see what you're capable of.
Sal
