Solar Powered Reading Lamp by LM2941

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The reading lamp consists of a small solar panel, a standard UPS style lead acid battery, and an LED circuit board. The circuit board contains a low power solar charge controller (regulator), a set of 8 white LEDs, a switch, an LED current regulator, and a low voltage disconnect circuit. The circuitry will insure a long battery life by preventing over charging and excessive discharging. The circuit was designed to work with lead acid batteries, it should also work with a string of 10 NiCd cells. Both the charge controller and LED regulator circuits can be used independently for other applications.

Read More Source:
http://www.solorb.com/elect/solarcirc/srl1/
Thank you.

This entry was posted on Friday, February 15th, 2008 at 8:21 am and is filed under Power supply. You can follow any responses to this entry through the RSS 2.0 feed.