Requoting question from Aug 2008 N.V. (#8082)

This is the place for any magazine-related discussions that don't fit in any of the column discussion boards below.
Post Reply
Posts: 3
Joined: Sat Feb 03, 2007 6:29 pm

Requoting question from Aug 2008 N.V. (#8082)

Post by sherab » Sun Aug 03, 2008 4:53 pm

I saw an interesting question in the latest NV (Aug 2008, pg. 94) and was wondering if anyone has updated it (I can't find it in the search). The question is below...
I need info on refurbishing or building custom solar yard lights. I currently have a Lighthouse lawn ornament that has a solar light that doesn't recharge the replaceable rechargeable battery. Information on troubleshooting would be helpful for what I assume to be a fairly common circuit. I would also like to illuminate the lantern of a Lawn Jockey and a Pagoda. Adding multiple LEDs with changing colors and blinking patterns could also be a take off. Anyone have a circuit?

User avatar
Posts: 223
Joined: Sun Mar 02, 2003 1:01 am
Location: Austin Texas

Re: Requoting question from Aug 2008 N.V. (#8082)

Post by VernGraner » Sun Aug 03, 2008 9:04 pm

sherab wrote:I need info on refurbishing or building custom solar yard lights.
Start with the theory of operation here:

Then move on to an "autopsy" of an LED garden light (including schematic) here:

Top it off with some surplus replacement Solar Panels w/LEDs for $3.00 each (if you want to roll-your-own garden light):

Hope that helps :)

Vern Graner

User avatar
Posts: 1289
Joined: Thu Jan 03, 2002 1:01 am
Location: Northern Illinois

Post by jollyrgr » Fri Aug 08, 2008 3:20 pm

Resolder all the connections. The circuit boards get wet, corrode, and stop working correctly. On some of these the circuit board is smaller than a stamp and use SMT devices. Those with one AA battery use an oscillator circuit to convert the 1.2V DC from the NiCad into 3.5V DC.
No trees were harmed in the creation of this message. But billions of electrons, photons, and electromagnetic waves were terribly inconvenienced!

Post Reply

Who is online

Users browsing this forum: No registered users and 31 guests