help needed on solar cell!! - Electronic Circuits Projects Diagrams Free

king_189 · 8th August 2008, 05:02 PM

hii friends, I need your help, i am having solar cell from old calculator
when i tested them i found o/p voltage is 3.25v but the short circuit current is only 2.5mA. I am having 4 of such solar cells & i want to run a dc motor of 2v & 250mA is minimum current required to run the motor.
can anyone please suggest a circuit or any other idea to increase the current!!

**Nigel Goodwin** · 8th August 2008, 05:05 PM

Quote:

Originally Posted by king_189

hii friends, I need your help, i am having solar cell from old calculator
when i tested them i found o/p voltage is 3.25v but the short circuit current is only 2.5mA. I am having 4 of such solar cells & i want to run a dc motor of 2v & 250mA is minimum current required to run the motor.
can anyone please suggest a circuit or any other idea to increase the current!!

That would require magic, not electronics - you need MUCH larger solar cells, or LOT'S more of them.

Hero999 · 8th August 2008, 11:57 PM

Yes, get hold of 100 of these little cells and connect them all in parallel.

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8th August 2008, 05:02 PM	(permalink)
king_189	help needed on solar cell!! hii friends, I need your help, i am having solar cell from old calculator when i tested them i found o/p voltage is 3.25v but the short circuit current is only 2.5mA. I am having 4 of such solar cells & i want to run a dc motor of 2v & 250mA is minimum current required to run the motor. can anyone please suggest a circuit or any other idea to increase the current!! Last edited by king_189; 8th August 2008 at 05:03 PM.

8th August 2008, 11:57 PM	(permalink)
Hero999	Yes, get hold of 100 of these little cells and connect them all in parallel. __________________ I also post at the following sites: http://www.stop-microsoft.org http://www.heated-debates.com Screen name: Aloone_Jonez And http://www.silicontronics.com, same screen name as here.