Diy mppt?

Xringer · 03-14-15, 10:10 AM

That's the way I understand it.
I was just looking at the truth table for the IC, but didn't want to confuse us..

What you want to shoot for in your voltage divider design,
is never allow the input on pin 2, to go so high that it cooks the chip..
Even when PV volts are at max..
I think that's what caused my chip to melt into it's socket.. LOL!
Otherwise I would have just plugged in another chip..
The voltage of my 800w array can get quite high..

03-14-15, 10:10 AM	#38
Xringer Lex Parsimoniae Join Date: Feb 2009 Location: Woburn, MA Posts: 4,918 Thanks: 114 Thanked 250 Times in 230 Posts	That's the way I understand it. I was just looking at the truth table for the IC, but didn't want to confuse us.. What you want to shoot for in your voltage divider design, is never allow the input on pin 2, to go so high that it cooks the chip.. Even when PV volts are at max.. I think that's what caused my chip to melt into it's socket.. LOL! Otherwise I would have just plugged in another chip.. The voltage of my 800w array can get quite high.. __________________ My hobby is installing & trying to repair mini-splits EPA 608 Type 1 Technician Certification ~ 5 lbs or less..