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Old 16th December 2010, 01:56 AM   #1
diyAudio Member
Join Date: Sep 2010
Default Solar powered fan

I dont know much about building with solar panels.
I would like to run a fan of mine at 4V (0.3 W) with a 5V solar cell which on short provides 100mA.

How do i know if the cell can run the fan at 4V and a decent current without buying it and testing it?
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Old 16th December 2010, 09:19 AM   #2
wwenze is offline wwenze  Singapore
diyAudio Member
Join Date: Mar 2008
On short provides 100mA, but what what voltage? The datasheet should say current vs voltage or max current @ specific voltage.
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Old 16th December 2010, 12:02 PM   #3
benb is offline benb  United States
diyAudio Member
Join Date: Apr 2010
"On short" would be zero volts. Surely there's some curve or formula for solar cells for voltage vs. current.
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