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Username or Email Address. Qualcomm introduced Quickcharge 3. If you have ever wondered what Quickcharge do qualcomm msm7227a 0 wikipedia 50 the hood, SemiAccurate can help. The idea is simple enough, as batteries in phones and mobile devices grow in size it takes longer to charge them. USB2 can only supply a little current and USB3 ups things a little. Qualcomm msm7227a 0 wikipedia 50 can get you the required wattage, up to W, but it is ill-suited for mobile use for a number of reasons. The last problem is that these technologies just deliver energy, none of them qualcomm msm7227a 0 wikipedia 50 how that energy affects the battery. Delivering a lot of energy in a short period of time is all fine and dandy but it produces a lot of heat when doing so which is also known as waste energy. That heat can both slow down the rate at which batteries charge and adversely affect the life of the cells being charged. The idea started out with Quickcharge 1. By hilarity I mean cooked batteries, burnt cables, and smoke, all of which most users deem sub-optimal. If you looks at what Quickcharge 1. This may seem to be a no-brainer but before QC1. This is helpful but not a game changer. There are two main technologies added with QC2. Parallel charging is just what it sounds like, you put two chargers in the device and they both deliver energy to the battery. For a given rate of charge that means each would deliver half the current that a single chip would and both would run significantly cooler. Cooler is more efficient and also translates into a lower skin temperature. If you are charging at 1. HVDCP is a little more interesting, it stands for High Voltage Downstream Charge Port and allows higher qualcomm msm7227a 0 wikipedia 50 to be passed over the USB cable. With HVDCP a QC2. This of course requires the device to negotiate with the charger to request this higher voltage but the result can mean much higher wattages delivered vs vanilla USB sans -PD. One thing SemiAccurate forgot to ask about is how HVDCP calculates if the cable can pass the current without causing the aforementioned sub-optimal whoopsies mentioned above.



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