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evilrichy's Achievements


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  1. Hi all, My backgroud is polymer electronics mainly, but I'm looking into designing a power supply to run one of my devices from mains. My knowledge in this is rather limited - so apologies in advance! The specs for what I want are; Mains voltage input, 5-10 V dc output @ 100-300 mA, Efficient as possible, Compact as possible. I've been searching the web for suitable designs, but have had no luck so far. Does anyone know if I can make such a supply? Ideally switch mode (I've been told that helps efficiency) and if posible, can it be done without transformer? I only ask this as the size of it would be an issue. Any help would be greatly appriciated! Many thanks, Rich
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