2017 Qualcomm Snapdragon Tech Summit December 4-8, Hawaii, Qualcomm QC4 + Charger, Car Charger at Qualcomm's official 5-day summit.
This may be the first exposure of QC4 + certified accessories. Prior to this, Qualcomm delayed the release of commercial QC4 + charging accessories, resulting in the market appears to support the phone QC4 +, but did not match the charging accessories happen.
Both products were developed by Ever Win International Corp, The maximum power is 27W.
QC4 + Charger Output 5V / 3A, 9V / 3A, 11V / 2.4A, 12V / 2.25A. QC4 + car charger input 10.8V-16V, the output is 5V3A, 9V3A, 11V / 2.4A, 12V / 2.25A.
Charge head network from NXP (Qualcomm has acquired the company) agent learned that, NXP program Qualcomm QC4 +, PD3.0 built-in PPS car charger, travel charger products can be distributed in large areas.
So, I believe soon the market will appear more QC4 + products.
In November 2016, Qualcomm officially released QC4, a new generation of fast charging technology, which can charge 50% of the cell phone charge within 15 minutes, and then Qualcomm upgraded the fast charging technology to QC4 +, which has all the advantages of QC4 and further upgrades. Compared with QC4, QC4 + will have the potential to increase the terminal charging speed up to 15%, or enhance the charging efficiency of 30%. Specific upgrades include three aspects:
Dual charging technology:
Dual charging is already an option in earlier versions, but is now more powerful with a second power management integrated circuit (IC) in the terminal, which charges less heat by charging the terminal through two-way charging, spreading the charging current And shorten the charging time.
Smart thermal balance:
Smart Thermal Balance further enhances Dual Charge, designed to automatically charge through the lowest temperature circuitry and eliminate hot spots to optimize charging.
Advanced security features:
The Quick Charge 4 already contains a tight built-in security protocol Quick Charge 4+ is further advanced and designed to monitor both terminal housings and connector temperature levels. This extra layer of protection helps prevent overheating and short circuits or damaging Type-C connectors.
