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Science Solar panel voltage and current calculation, Series and parallel connection?
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TSbagata
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 Nov 13 2010, 08:54 PM, updated 16y ago
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Hi guys,
Been having trouble with my project.
Let say i have a solar panel rating 9V 70mA
I wanna to have a minimum voltage of 12V, so if i get two panels and connect in series i would get 9V + 9V = 18V, but will the current be added up?
Since in series connection, current is the same at every point, and since the solar panel wont be having the same intensity of sunlight, let say plate 1 generated 30mA, and plate 2 generated 20mA, will the current be 50mA? or just 20mA or 30mA?
thanks.
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TSbagata
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Nov 14 2010, 09:28 AM
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QUOTE(haley0918 @ Nov 13 2010, 08:58 PM) in your case, the maximum current output of the system is the cell with the lowest current output so means that the current will be 20mA only? wow... thats a bad news  |
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TSbagata
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Nov 15 2010, 02:57 PM
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QUOTE(ozak @ Nov 15 2010, 10:44 AM) So have you try out your project? You can try to connect it and using multimeter to check the current output. Provided your multimeter max amp tester not lower than your testing amp. ( will burn your multitester fuse or spoil it) havent... because scare i might buy the wrong one as one plate cost quite a sum of money... no one tried this before huh? haih... |
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TSbagata
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Nov 15 2010, 07:03 PM
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my project need to power up 4LEDs which is around 12V. 12V plate is too big for my project, so thinking of using 9V and connect it in series to get higher voltage to power up the LEDs. seems like it is not realizable here?
This post has been edited by bagata: Nov 15 2010, 07:03 PM
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