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Dave's Circuits
Circuits designed by David Johnson, P.E.

Master Category List - Dave's Circuits
 Last Updated on: Friday, July 18, 2008 11:34 AM


Flashers & Blinking Circuits    Indicator Circuits
1.5V LED FLASHER VERSION A
Many published circuits that flash LEDs need 3 volts or more. This circuit uses only a single inexpensive C-MOS IC and flashes the LED for a full year on a single 1.5 volt AA alkaline battery cell. The circuit uses a charge pump technique to provide the LED the needed voltage.

Click on Drawing Below to view PDF version of Schematic

1.5 LED Flasher Circuit, version A designed by Dave Johnson, P.E. (June 4, 2000)

Flashers & Blinking Circuits    Indicator Circuits

Master Schematic Category List - David A. Johnson, P.E.
 

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