LED driver using 555

Electronics & Electrical Engineering Topics
Post Reply
User avatar
SemiconductorCat
Major
Major
Posts: 455
Joined: Mon Aug 22, 2011 8:42 pm
Location: currently in hyperspace

LED driver using 555

Post by SemiconductorCat » Sun May 12, 2013 6:39 am

Hi all, I have reviewed a complete analog LED driver circuit like bellow.
Image


Any idea how could I modify this circuit to use 555 ? I mean not using a square wave generator.
I know I could use this. But the problem is 555 capacitor charging curve is not linear like it should be
in the square wave generator.


Any ideas?

--Thanks In Advance--
Top
Post Reply

Return to “Electronics & Electrical Engineering”