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> Design solar panel with bateries for pc fan at radiation shield part 2.
weather1967
post Jul 6 2009, 11:40 AM
Post #1




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Posts: 901
Joined: 31-July 07
From: Peristeri Athens - Greece
Member No.: 7,336





Ηi again
I make a electronic circuit with 2N2222 tranzistor, and CA3140E microcircuit, i drive to relay with better accurace,with trimmer i tuning at how voltage i want to drive the relay.
I have some photos
All it is the same with other project ,except the relay circuit
Fan turn the day with full speed ,and the night at half speed



Ηere i have more photos at down side

http://users.otenet.gr/~meteo/project_sola...lectronics.html

This post has been edited by weather1967: Oct 9 2009, 11:54 AM


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Best regards from Greece
Dimitris
http://users.otenet.gr/~meteo/index.html
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