This two LED flasher circuit uses any DC supply from 3V to 12V. Flash rate is controlled by R1,C1 and R2,C2. Larger values create slower fash rates, smaller values higher flash rates.
Showing posts with label flasher. Show all posts
Showing posts with label flasher. Show all posts
Saturday, November 8, 2014
Sunday, November 2, 2014
1 5V POWERED LED FLASHER ELECTRONIC DIAGRAM
1.5V POWERED LED FLASHER ELECTRONIC DIAGRAM
It is a charge pump design. This is where a capacitor (electrolytic) is allowed to charge and is then raised higher and allowed to discharge into a load. The load sees a voltage that can be higher than the supply.
Monday, May 13, 2013
Dark Activated Led or Lamp Flasher
This circuit adopts the rather unusual Bowes/White emitter coupled multivibrator circuit. The oscillation frequency is about 1Hz and is set by C1 value. The LED starts flashing when the photo resistor is scarcely illuminated. The onset of flashing can be set by trimming R2.
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