This Circuit will allow for Voltage Regulation and Isolation when Charging Lead Acid Batteries with a Solar Cell.This Circuit will be most useful for Solar Panals of less than 100 watts, and when using a suitable transistor in it.
I also suggest you read my Amplified Zener Article,
For MORE DETAILS.
 Click Here for my "Amplified Zener Article"
The "RX" Resistor that is used on the Amplified Zener is Not Needed for this Solar-Charger. Solar Panals are basically a current limited device. Therefore the output voltage will pull down accordingly as the load increases.

"Here is the Schematic"
All Imformation in this Article is "Copyright protected".
Chemelec
*Copyright © 2004 & 2008*