Qualcomm has unveiled the next generation of its quick charging technology which lets you juice up your smartphone or tablet battery in a hurry.
The company says Quick Charge 3.0 will let you charge a typical smartphone battery to 80 percent in about 35 minutes, when starting from a battery that’s pretty much dead.
Qualcomm says the new protocol uses an algorithm called Intelligent Negotiation for Optimum Voltage (INOV), which makes the platform up to 38 percent more efficient than Quick Charge 2.0, meaning you waste less power when charging your device. It’s also up to twice as fast as Quick Charge 1.0.
Part of the difference between versions 2.0 and 3.0 of Qualcomm’s Quick Charge technology is that the new version is more flexible, supporting voltages in 200 mV increments between 3.6V and 20V, while Quick Charge 2.0 only supported four different fixed charging voltages (5V, 9V, 12V, and 20V. This means your phone or tablet won’t use more energy than it needs to charge a battery.
The company says it’s also taken steps to reduce the impact of quick charging on the lifespan of a battery, hopefully keeping your battery from degrading too much over the time that you own your phone or tablet.
Some of the first devices to support Quick Charge 3.0 will be products with Qualcomm Snapdragon 820, 620, 618, 617, and 430 chips — although Qualcomm says Quick Charge 3.0 is “an option,” which suggests that some phones with those processors may not support quick charging. It’ll be up to device makers to decide whether to implement the technology.
Interesting, that quick charging can be done even without usb type-c Power delivery tech!
I like Mediatek’s pump express plus fast charging implementation better than quick charge. With QC the soc needs to drive analog voltages on the usb d+ and d- pins, but with PEP the PMIC just controls the charge current to create a short pulse chain. PEP allows for a simpler charger and does not need software controlling charging on the phone.
So, is it that my recently bought Xiaomi redmi note 2 with MTK6795 SoC use, when it charge?
Xiaomi Redmi Note 2 don’t support MTK quick charge, we have made the charging analysis here:
https://www.tronsmart.com/?p=3644