Hi My controller needs to see a constant current source like a solar panel as a supply. You can connect a solar panel and a power supply if you make the power supply a constant current source and you isolate the panel and power supply with a diode just like you would do with several solar panels in parallel. Most panels already have the diode in the circuit. You can make a power supply look like a constant current source by adding a resistor in series. A 16-18 volt power supply with about a 5 ohm 10 watt resistor and a blocking diode should work.
Don Brown KD5NDB ----- Original Message ----- From: Richard Klingensmith<mailto:[EMAIL PROTECTED]> To: [EMAIL PROTECTED]<mailto:[EMAIL PROTECTED]> Sent: Wednesday, July 21, 2004 3:40 PM Subject: Solar Panels Batteries and Chargers Don, You sent me information on your solar panel controller and I intend to get one from you when the budget is in a little better shape. I have one question and if you think it would benefit the elecraft list please post a response there. For my home qth I hope to be battery powered. I intend to have both a solar panel and charger connected to the battery at one time as well as my K1. Can I connect them on a bus type configuration or do I need some type of controller to handle all these at one time. Oh, did I mention I want to use the radio when the battery could be charging from either source? This is probably pretty elementary stuff but I don't quite understand it all and if you could point me in the right direction I would appreciate it. Even a hint where to look some of it up would help. Thanks for your time. Rick WA3TUU _________________________________________________________________ Don't just search. Find. Check out the new MSN Search! http://search.msn.click-url.com/go/onm00200636ave/direct/01/<http://search.msn.click-url.com/go/onm00200636ave/direct/01/> _______________________________________________ Elecraft mailing list Post to: [email protected] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
