AC Power LED Lightning
The Schematic shown below works for a 120v 50Hz supply . The capacitor is used to limit the AC Current through the LED’s. The LED’s are arranged in two rows each containing 14 LED’s. A metal oxide resistor(1k ohm ,1W) is connected in series to the capacitor to act as a fuse an to limit the peak current. The capacitor value (0.47uF ) for a 120 V supply keeps the current limited to about 20ma. When the device is powered by 240 V supply a 0.22uf ,400 V capacitor must be used.
![image image](http://lh4.ggpht.com/_BdaR83-kKO0/S2BoYTqOg1I/AAAAAAAAAGs/v9RcXcu4gFU/image_thumb%5B23%5D.png?imgmax=800)
AjSmart
Tehnology geek
Sole blogger :(
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