solar pv calculations
i connected 6 1.75 watts cells in series but not sure if they work or whats can I power up with only 6 of them?
ok i have 6 solar cells PV. they are 1.75 watts each 3.85amps and 0.05v each.
I already connceted them in series but now i want to know if they work…..does anyone have an idea of what i can power with only these 6 cells??
also i made my calculations and all together comes up to 10.50 watts…is that right?and will it supply that much power?
Th “blowup” rating of the cells are 1.75 watts output if you drive 3.85 amps through each cell. To arrive at those maximum levels you would need a voltage potential at each cell of .4545 volts, which obviously with their internal resistance, each cell is capable of producing only ,05 volts, so the upper limit values you have for wattage and amperage are only for values similar to “short circuit” values. If you series the 6 cells you have, 6x.05= 0.3 volts. This potential could be usefull to charge a battery of say 6 volts to create a trickle charge if the cells were in series with the 6 volt battery, and the 0.3 volts exceeded the 6 volt battery voltage level.
The resistance of the 6 cells is1.75 divided by 3.85 squared, or .118 ohms. And multiplying by 6, equals 0.7 ohms. Putting the 6 cells in series with a battery that would allow maximum 3.85 amps flow, and would allow over voltage for trickle charge, would give you a working solar cell electrical production activity. I don’t know what the timing would be for the recharge of the battery, but that would be your next step in this experiment.
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