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555 Breathing (Pulsing) LED Circuit

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Uploaded on Aug 2, 2011

Link to page: http://www.pcbheaven.com/circuitpages...

I plan to finish the PC case mod that i began some years ago, and i need a breathing (pulsing) LED circuit. I designed a very simple and very adaptive breathing LED circuit to use it for the power switch. The circuit uses a 555 timer chip and two transistor amplifiers, and has different adjustments for the fade-in and fade-out times.

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