Circuit - THREE VOLT LOW BATTERY VOLTAGE FLASHER - Circuits designed by David A. Johnson, P.E.

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Circuits designed by David Johnson, P.E.
Last Updated on: Sunday, May 19, 2013 04:54 AM

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THREE VOLT LOW BATTERY VOLTAGE FLASHER

This circuit is designed to monitor two alkaline cells (3v) that form the battery often used in portable electronic equipment.

It use an inexpensive IC from Panasonic that is connected to an efficient LED flashing circuit. When the battery voltage drops below a certain point the circuit flashes the LED.