BFL13 & PWM
ye ole controller worked as you suggest which is how PWM controller operate AFIK, nothing new to learn. "A PWM controller is not a DC to DC transformer. The PWM controller is a switch which connect...
Forum Discussion
Thanks, I think. Need a link to the Xantrex C40 manual, which might explain something.
Got started, sort of.--"dump loads to control battery voltage" ??? Is this what is confusing things?
https://www.windynation.com/cm/Xantrex%20Complete%20Charge%20Controller%20R2.pdf
Found it--didn't help.
http://www.wsetech.com/pdfs/C_series_manual.pdf
I did see red31's graph of what happens with panel voltage after the controller starts controlling, but that rising voltage was said to be from the measuring instrument averaging and not the "real thing" IIRC.
Later I will see if I can get some readings too, but might be a few days though.
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From red31's link in the OP, "The input voltage of a PWM controller is, in principle, equal to the voltage of the battery
connected to its output (plus voltage losses in the cabling and controller)."
So howinheck can Mr Wiz get 17v at his "PWM" controller's input? (which he is no doubt seeing--he is not a liar!) We need that C40 manual to see if it explains that.
Got started, sort of.--"dump loads to control battery voltage" ??? Is this what is confusing things?
https://www.windynation.com/cm/Xantrex%20Complete%20Charge%20Controller%20R2.pdf
Found it--didn't help.
http://www.wsetech.com/pdfs/C_series_manual.pdf
I did see red31's graph of what happens with panel voltage after the controller starts controlling, but that rising voltage was said to be from the measuring instrument averaging and not the "real thing" IIRC.
Later I will see if I can get some readings too, but might be a few days though.
---------
From red31's link in the OP, "The input voltage of a PWM controller is, in principle, equal to the voltage of the battery
connected to its output (plus voltage losses in the cabling and controller)."
So howinheck can Mr Wiz get 17v at his "PWM" controller's input? (which he is no doubt seeing--he is not a liar!) We need that C40 manual to see if it explains that.
