https://blog.mickeyzzc.tech/en/tags/topology/Recent content in Topology on Mi&Bee BlogHugo -- gohugo.ioen蓝宝石的傻话Mon, 13 Jul 2026 00:00:00 +0000https://blog.mickeyzzc.tech/en/posts/iot/psu-selection-guide/Mon, 13 Jul 2026 00:00:00 +0000https://blog.mickeyzzc.tech/en/posts/iot/psu-selection-guide/<h2 id="about-this-handbook">About This Handbook</h2> <p>This handbook is organized by <strong>technology dimension</strong>, not by brand model. PSU underlying technology — topology architecture (active PFC + LLC + DC-DC), 80PLUS efficiency standards, single-rail/multi-rail 12V design, modular cabling and connectors, protection circuits — these dimensions have been stable for years (the 80PLUS standard has remained essentially unchanged since 2005; LLC topology became mainstream around 2015), making them more durable references than specific models.</p> <p>The PSU is the most overlooked and budget-squeezed component in studio equipment. GPU and CPU model numbers define performance; the PSU model only defines &ldquo;whether things go wrong,&rdquo; so it&rsquo;s often the target of cost-cutting at purchase. But PSU failure damages high-value components downstream — a single incident costs more than the entire PSU budget.</p>