This video explains the technology behind fast charging in mobile phones, from early phones with linear chargers to the most advanced high power Direct-Charge-Divide/2 systems. We discuss different battery types, special charging systems like Qualcomm’s Quick-Charge QC2.0/3.0 and the new USB-C Power Delivery charging systems, covering Direct Charge and Direct Charge-Divide/2 systems that can deliver charging powers up to 45W without overheating.
We hook up oscilloscope and USB-PD analysers to different smartphones like Galaxy Note 10+ to examine their charging behaviour in detail. We will also tell you about next generation smartphone charging technology like Direct Charge-Divide/4 and dual cell battery systems.
Read more about Richtek’s ‘’Fast charging and USB PD’’ :
https://www.richtek.com/technology/fast-charge-usb-pd?utm_source=Social&utm_medium=Youtube&utm_campaign=Video054
Related Richtek products:
RT9467: 5A Switching charger (high current switching charger application)
https://www.richtek.com/RedirectToProduct?specid=RT9467&utm_source=Social&utm_medium=Youtube&utm_campaign=Video054
RT1716: USB-PD 3.0 Power delivery controller (sink side)
https://www.richtek.com/RedirectToProduct?specid=RT1716&utm_source=Social&utm_medium=Youtube&utm_campaign=Video054
RT9471: 3A Switching charger (medium current switching charger application)
https://www.richtek.com/RedirectToProduct?specid=RT9471/RT9471D&utm_source=Social&utm_medium=Youtube&utm_campaign=Video054
Some handy measurement tools that were used in this video: RIDEN TC66 and XYZ studio ZY1271 USB power monitors; Total Phase USB-PD protocol analyser.
music "The Stratosphere" by Adam Vitovsky