{"id":9064,"date":"2007-11-05T22:26:00","date_gmt":"2007-11-06T03:26:00","guid":{"rendered":"https:\/\/nuxx.net\/blog\/2007\/11\/05\/switching-power-supply\/"},"modified":"2026-07-01T11:36:14","modified_gmt":"2026-07-01T15:36:14","slug":"switching-power-supply","status":"publish","type":"post","link":"https:\/\/nuxx.net\/blog\/2007\/11\/05\/switching-power-supply\/","title":{"rendered":"Switching Power Supply"},"content":{"rendered":"<p><a href=\"https:\/\/nuxx.net\/blog\/wp-content\/uploads\/2026\/06\/IMG_9774-scaled.jpg\"><img decoding=\"async\" src=\"https:\/\/nuxx.net\/blog\/wp-content\/uploads\/2026\/06\/IMG_9774-scaled.jpg\" height=427 width=640 border=0><\/a><\/p>\n<p>Well, the prototype power 5V switching power supply that I cobbled together seems to be working. Up there you can see it powering the first <a href=\"http:\/\/nuxx.net\/wiki\/Audio_Input_Switch\">nuxx Audio Input Switch<\/a>, just to give it some sort of load to work on.<\/p>\n<p><a href=\"https:\/\/nuxx.net\/blog\/wp-content\/uploads\/2026\/06\/IMG_9775-scaled.jpg\">Here<\/a> is a photo of the bottom of it. It&#8217;s clearly hacked together, just sort of built up on the board so I could have solder connections and reasonably short wires. When I tried to breadboard it things didn&#8217;t work quite right, which I blame on switching power supplies being touchy about long rows of bare wire.<\/p>\n<p>It&#8217;s pretty much a reference implementation (some variances in parts) and it produces what appears to be nice, clean power. I can&#8217;t see any noise on my scope. Granted, my scope is pretty crappy, but it does seem to show some noise when it exists. (I can&#8217;t afford a new scope yet&#8230;)<\/p>\n<p>I&#8217;m happy with how it is working thus far. I need to put a bit more load on it, but that&#8217;ll be done over one of the next random couple of days. For now I can say that it had no problem giving me an even 5.000 VDC while powering the nAIS above and being fed 6.073 VDC. If I cranked the input up to 35.93 VDC (the highest I can get my benchtop power supply) the power supply was pushing out 5.074 VDC. Pretty good, I think.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Well, the prototype power 5V switching power supply that I cobbled together seems to be working. Up there you can see it powering the first nuxx Audio Input Switch, just to give it some sort of load to work on. Here is a photo of the bottom of it. It&#8217;s clearly hacked together, just sort\u2026<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6,11,34],"tags":[],"class_list":["post-9064","post","type-post","status-publish","format-standard","hentry","category-electronics","category-making-things","category-moved-from-livejournal"],"_links":{"self":[{"href":"https:\/\/nuxx.net\/blog\/wp-json\/wp\/v2\/posts\/9064","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/nuxx.net\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/nuxx.net\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/nuxx.net\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/nuxx.net\/blog\/wp-json\/wp\/v2\/comments?post=9064"}],"version-history":[{"count":4,"href":"https:\/\/nuxx.net\/blog\/wp-json\/wp\/v2\/posts\/9064\/revisions"}],"predecessor-version":[{"id":24655,"href":"https:\/\/nuxx.net\/blog\/wp-json\/wp\/v2\/posts\/9064\/revisions\/24655"}],"wp:attachment":[{"href":"https:\/\/nuxx.net\/blog\/wp-json\/wp\/v2\/media?parent=9064"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/nuxx.net\/blog\/wp-json\/wp\/v2\/categories?post=9064"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/nuxx.net\/blog\/wp-json\/wp\/v2\/tags?post=9064"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}