Argon laser power supply from surplus switchmode PSUs| Circuit Project

There are numerous power supply schematics at Sam’s Laser FAQ, but many of these are aimed at USA 110V mains supplies. As I live in 240V-land, I needed to build a proper PSU, and didn’t like the idea of having to use a huge, hard-to-find, hernia-inducing transformer, big smoothing caps and hot linear regulator, and decided that it would be good to be able to use a switchmode power supply (SMPS), which would be lighter, smaller and more efficient . Large SMPS’s are readily available very cheaply in the surplus and Radio Rally (Hamfest) market, as they are mostly of little use out of the equipment from which they came – when was the last time you needed 5V at 80 amps

Circuit diagrams and schematics - Electronic projects

Argon laser power supply from surplus switchmode PSUs (function() { var po = document.createElement('script'); po.type = 'text/javascript'; po.async = true; po.src = 'https://apis.google.com/js/plusone.js'; var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(po, s); })();

Argon laser power supply from surplus switchmode PSUs