Încărcător USB-C PD 20W cu Quick Charge – Măsurare putere și analiză electronică

✔️Hello! In the episode above I tested another USB charger (model "41-AC" 20W) bought from Aliexpress. This series of videos is a personal curiosity, to explore and test this kind of very cheap chargers. ✔️In this video I weighed the charger, tested if it has the "QC2.0" and "QC3.0" mode. Of course I also tested the charger under load. To see the maximum current and maximum power. Towards the end I analyzed the charger's electronics and measured the ripple using the oscilloscope. Being very important from my point of view. And at the end I also drew conclusions, saying whether or not the charger is worth it. Whether or not it is safe to use. Contents: 00:00 - Introduction 01:03 - USB charger weighing 01:31 - No-load testing, in "QC2.0"/"QC3.0" mode 02:37 - Maximum current testing, in "QC2.0" mode (at 5V, 9V, 12V) 05:45 - Analyzing the electronic part of the USB charger "41-AC" 11:30 - Ripple measurement at 5V (0A, 1A, 2A) 12:40 - Transformer analysis and capacitor replacement "CY1" 16:34 - Conclusions 17:43 - End 📌If you liked this video, don't forget to LIKE 👍 and SUBSCRIBE ⚡