1.5V LED FLASHER CIRCUIT

1.5V LED FLASHER CIRCUIT

1.5V LED FLASHER CIRCUIT

AVERAGE CURRENT = 120uA

PEAK LED CURRENT = 20mA

4mS PULSE  1 FLASHE/SEC

APPROX. 6 MONTHS OPPERATION FROM N-CELL

APPROX. 12 MONTHS OPPERATION FROM AA CELL

DAVID JOHNSON AND ASSOCIATES

MINIATURE LED FLASHING CIRCUIT

1.5 VOLT CIRCUIT

1.5v LED FLASHER

1.5v LED FLASHER

This will flash a LED, using a single 1.5v cell. It will even flash a white LED even though this type of LED needs about 3.2v to 3.6v for operation.


The circuit takes about 2mA but produces a very bright flash.

source : http://www.talkingelectronics.com.au/projects/200TrCcts/200TrCcts.html