Solar Charger Schematic

Warning: curl_setopt_array() [function.curl-setopt-array]: open_basedir restriction in effect. File() is not within the allowed path(s): (/home/wilsonsp:/usr/lib/php:/usr/php4/lib/php:/usr/local/lib/php:/usr/local/php4/lib/php:/tmp) in /home/wilsonsp/public_html/commlinx.com.au/wp-content/plugins/content-mage/AbstractContentMageSource.php on line 1

I am going on a week long mtn. bike tour. Wondering about Schematics for solar digital camera battery charger?

I will be in the back country so I won’t have access to electricity.

I already have a flexible solar array that can hang from my backpack. I am looking for control circuits that can effectively charge a digital point & shoot camera battery.

My array is 1×2′ and puts out 12 volts and up to 400 milliamps at full output about mid-day. I designed and soldered together a regulator to regulate it to 6 volts. But I need something better and more precisely regulated.

My battery is a Li-Ion 3.7V with a 1700 mAh capacity.

Thanks!

This website has a good circuit to do what you’re looking for, although it needs a 6 V supply. I’d suggest either rewiring your solar panel so that it outputs 6 V (half the elements in parallel with the other half?) or continue to use the regulator you’ve already got.

Part 2 Wind/Solar Controller Panel Construction Video