3 led flasher circuit diagram download,low current led flasher circuit diagram,led torch energizer,best led torch review 2013 outback - And More

04.03.2015
AS shown in  circuit diagram the LEDs are arranged in alternately reversed order so that a “twinkle twinkle little stars” effect is produced. By inverting the IC’s low output by pnp transistor BC558 the other group of LEDs is made to flash.


So, the red and green LEDs may not flash with equal intensity (as they require different threshold voltage).
It will operate with 3 volt but takes only 1.8mA to perform its task so the battery will last longer.





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