Risques et Dangers potentiels des chargeurs de smartphones

This episode explores in detail the issue of smartphone chargers, including potential risks and dangers in certain everyday situations, as well as taking measurements and performing a quick analysis of their electronics to highlight potential flaws. Deus Ex Silicium - Website _____________________ http://www.dexsilicium.com (to contact me) Twitter _______________________   / dexsilicium   Instagram ____________________   / deus.ex.silicium   Soundcloud __________________ https://bit.ly/3e2brVf Note about the episode: Residual AC voltage can be due to at least three causes: 1) a transformer with poor galvanic isolation between the primary and secondary (capacitive coupling) 2) Class X or Y capacitors with capacitances that are too "low" 3) a lack of an optocoupler in the power supply design This residual voltage will collapse with a load of a few megaohms. What I'm mainly trying to point out is the fact that this residual voltage exists in some power supplies when it could be avoided by choosing certain components. A little less "fair" or a slightly different design. Some manufacturers do it and not others. The electric heater isn't the best example, given that they are now Class 2 appliances (so no more ground wire; there are still some Class 1 auxiliary heaters), so consider it not a heater but a refrigerator, and the explanation remains valid. It's been brought to my attention since the episode's release that the Apple charger is a counterfeit, hence its rather poor design. It's indeed very likely...