I have the following things:
- 24VDC wires through the house for lighting and more.
- A 24VDC 10A power supply, can be adjusted with a potentiometer between 22V and 28V (more than the specified +-10%).
- Two 12V 7Ah lead batteries.
Now I want to combine them to get an uninterruptible light source.
At the house warming party we got a bedside lamp with watch from Somi. Since then it was sitting there beside the bed without beeing plugged in. You might wonder why… Because it contains an old fashioned light bulb.
Now it was time to change that. But the project became a little bigger than I wanted…
I did some “mass production” of LED drivers:
The one with the big inductor is a 1W version. The inductor is much too big but I didn’t have a smaller one. The other boards are for 3W LEDs. More info can be found here.
I also assembled one of the light 2 boards: