Homebrewed Electricity > Solar
Did i break my panel?
baggo:
Hi Juiced,
It's very unlikely you will have damaged the panel just by connecting your motor to it as solar panels suffer no ill effects even when running them short circuited. That's how the cheaper charge controllers (including those by ICP) prevent overcharging - by shorting the panel.
"Now, although the panel isn't in direct light it is showing 12.9 and the motor wont spin."
Don't forget that solar panels give negligible output unless they are in full sun. They will produce some voltage when open circuit but this will drop to nothing as soon as you connect a load to them. I have two 80W panels in parallel that produce over 8 amps in full sun but on a dull day they produce next to nothing.
John
juiced:
So what it shows as open V is not what kind of amps its putting out?
Once again guys, sorry i didnt come to the game with a full deck of cards... :p
Im currently looking for my old text books to re-learn math and electricty. I only remember the very basics. Even though i have been 'researching' A.E. for four years, i have only recently settled down and started to get hands-on experiance.
ghurd:
Target power is probably 7v at about .27 amps. (a guess, going by the earlier pic).
volts open, 0 amps, 0 watts.
3 amps short circuit, 0 volts, 0 watts.
Testing is a balancing act to get a R to get the PV out to about target V, and figure the current. (Or measure the current and figure the V of the R)
If it is damaged, its probably the wires where they go into the PV.
If you need a new one, All Electronics, US$20+6 shipping, 7v, 0.280a, Siemans, neat little arm to mount it. Over priced maybe, but they are tough to find.
G-
ghurd:
That 13 happened by itself, should be .3 amps.
I knew better.
juiced:
its funny, but it blew the fuse in the 12v adapter and it still wont turn the motor. Could water have damaged it? Shock? amps too high for the motor? (would the motor be cooked after? it still turns off a battery)
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