Home made led light + battery charger.

Discussions about solar power and solar energy projects.
techman
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Joined: Thu Dec 22, 2011 11:49 am

Re: Home made led light + battery charger.

Post by techman » Wed Feb 27, 2013 10:09 am

I have realized that the output of the solar path lights is a pulsed sort of DC. It is about 2.7 to 3.2 volts pulsed DC. The circuit boosts the 1.2 volts from the AA battery up to the operating voltage of a white LED. But since an LED can handle AC as well, it does not worry about smoothing out the power afterward. Just dumps the pulsing DC to the LED. The pulses are so fast that we do not see it and the LED is happy.

This will not work with the flichering LED candle because it has a circuit inside that requires a steady 3 volts to run. The pulses mess with the circuits so it will not flicker.

I have an idea to try using a capacitor across the output leads of the path light circuit and see if that can smooth out the voltage enough for the flickering LED candle light.

I will post my results.

takenover1
Posts: 3
Joined: Fri May 31, 2013 9:42 am
Location: Niagara Falls Canada

Re: Home made led light + battery charger.

Post by takenover1 » Wed Jun 12, 2013 8:08 am

Hi there, very sorry for your loss!
I am wondering if wiring an external photo call would do the trick, generally they are adjustable.
Hope this works for you!
Rob

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