Continuous_indicator_using_an_LM3909_chip

Published:2009/7/19 23:53:00 Author:Jessie | From:SeekIC

Continuous indicator using an LM3909 chip. Circuitry inside dashes is the LM3909. The circuit actually flashes at a 2 kHz rate, which cannot be detected by the human eye. This indicator is not intended as a long life system since current drain is 12 mA (courtesy National Semiconductor Corporation).



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