https://jestineyong.com Semiconductors, Test Equipments, Circuit Board Troubleshooting, Electronic Repair Courses and Many More! Mon, 27 Jul 2015 04:54:47 +0000 en-US hourly 1 https://wordpress.org/?v=5.4.25 https://jestineyong.com/double-insulated-smps/ https://jestineyong.com/double-insulated-smps/#comments Mon, 05 Aug 2013 04:45:11 +0000 https://www.jestineyong.com/?p=10188                 We have seen many reports of people experiencing small electrical shocks while handling peripheral equipment such as WiFi routers, modems, CD players etc… This problem usually comes from unearthed power adapters, principally Switch Mode Power Supplies (SMPS). SMPS have many advantages compared to the transformer based DC […]

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