Parallax series 7300 converter question
I was wondering if anyone knew off the top of their head if the Parallax series 7300 convertor is a three stage unit? I have a family member with this converter and isnt sure if the trailer can remai...
Forum Discussion
Those curves are just telling us the converter has an output resistance of 0.25V/55A = 4.5 mohm (the output drops about 0.25V going from no load to full load).
There's probably an inductor at the converter output that's outside the regulation loop.
In order to get the complete picture, you need to add cable resistance between converter and battery. That's usually 3 times or more higher.
So, if your cable has 15 mhom and converter 5 mohm resistance, total is 20 mohm.
If you're pulling 55A (constant current mode), voltage at battery charges to:
14.4V - 20mohm * 55A = 13.3V
Battery voltage will rise from 13.3V to 14.4V while the converter is tapering current.
There's probably an inductor at the converter output that's outside the regulation loop.
In order to get the complete picture, you need to add cable resistance between converter and battery. That's usually 3 times or more higher.
So, if your cable has 15 mhom and converter 5 mohm resistance, total is 20 mohm.
If you're pulling 55A (constant current mode), voltage at battery charges to:
14.4V - 20mohm * 55A = 13.3V
Battery voltage will rise from 13.3V to 14.4V while the converter is tapering current.
