This slideshow is based on the LEDs Design Ideas Collection, a collection of LED-related reader submitted circuits and design applications that have appeared in EDN's 'Design Ideas' section. Here you ...
With cycling safety in mind, I bought a pair of low power red LED things that replace the bungs in the end of drop handlebars. They are a neat way to get a bit of extra visibility – and to give a ...
Yes, for me, it’s nostalgic to think about my favorite LED Driver LM3909 from NSC! This ubiquitous chip is very smart in that it stores up energy in a timing capacitor and then switches it in series ...
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