Forum Index > Projects > Other projects
 Simple Solar Circuits
 |  Printable Version
By: Anonymous: Alex () on Friday, December 05 2008 @ 09:21 AM PST (Read 3734 times)  
Anonymous: Alex


I am currently playing with solar panels and came across the "Simple Solar Circuits" article. I saw you charged 3 1.2V cells and later on only 2 1.2V cells.
Is the panel strong enough to charge 3 cells? If I am not wrong, it must supply about 1.4-1.6V per cell, which would be 4.2-4.8V which is more than the solar panel (4.5V) supplies, in direct sun light. And then there is the diode, which needs another 0.5V.


By: Windell (offline) on Friday, December 05 2008 @ 10:02 AM PST  

It's not the most efficient thing, and you may not get to full charge, but it does work. Without the diode you get huge reverse leakage, with the diode you get lower charging voltage->slower charging, and possibly not full charge. Tradeoffs!

Windell H. Oskay

Forum Evil Scientist
Evil Scientist

Status: offline

Registered: 06/15/06
Posts: 1932
Sunnyvale, CA

Profile Email Website  
By: Anonymous: Alex () on Friday, December 05 2008 @ 10:28 AM PST  
Anonymous: Alex

Thanks Windell, for the fast reply. I'll try that out.


 All times are PDT. The time is now 07:25 AM.
Normal Topic Normal Topic
Locked Topic Locked Topic
Sticky Topic Sticky Topic
New Post New Post
Sticky Topic W/ New Post Sticky Topic W/ New Post
Locked Topic W/ New Post Locked Topic W/ New Post
View Anonymous Posts 
Able to Post 
Filtered HTML Allowed 
Censored Content 

Evil Mad Scientist Forum Archives — Read only!

Please visit our new forums for new discussions.

DIY Hardware for Electronic Art

The Original Egg-Bot Kit

Interactive LED kits

Meggy Jr RGB
LED matrix game
development kit.

Business-card sized
AVR target boards

Peggy 2
LED Pegboard kits

My Account

Lost your password?