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Circuits designed by David Johnson, P.E.
Last Updated on: Thursday, December 01, 2011 06:49 AM

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More  Flashers & Blinking Circuits    Indicator Circuits
LEDs     Micro Power 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

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

More  Flashers & Blinking Circuits    Indicator Circuits   LEDs     Micro Power Circuits

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