From Dailytech: Microsoft Corp. (MSFT) is reportedly looking to bring its Lumia line of smartphones up to speed in one crucial metric -- fast charging -- according to a new report by ITHome. The new feature will reportedly be coming to the upcoming Windows 10 powered Lumia "Talkman" (Lumia 940 ... or 950 according to some) and "Cityman" (Lumia 940? XL / 950? XL ) flagship phones. And while it's a much overdue feature, Microsoft reportedly has found a way to push the envelope a bit further than its rivals have.
Back in 2012, the Lumia line was among the first to jump on the wireless charging bandwagon, adding the the Qi charging standard with the launch of the Lumia 820/920 (back when Lumia was a brand of Nokia Oyj. (HEL:NOK1V)). But much as Microsoft's pace of high end smartphone offerings has fallen off, so too has its adoption rate of leading edge power technologies. Thus it's missed perhaps the most useful recent development in the smartphone power space -- fast charging.
Developed by Qualcomm Corp. (QCOM), the premise of Quick Charge is simple. In devices with a compatible Qualcomm or licensed third party processor compatible chargers talk to smartphone over the charging cable to confirm the device is capable of handling more juice.
With standard USB 2.0 the cable can only trickle power in at 500mA (0.5A). USB 3.0 nearly doubles this to 900mA (0.9A). Both versions use 5 volts as their max voltage, so taht works out to 2.5 watts and 4.5 watts, respectively.
View: Article @ Source Site
