Millet 6 release has been more than a month, but it is still hard to find a state, for now, want the output to meet demand will continue for a long time. OK, those of us who do not care, today mainly to talk millet 6 in a very interesting thing - why did not use Qualcomm's latest QC4.0 fast charge technology?
Millet as a progressive innovator, black science and technology has become a representative of the company's word, so the more so, the more you wonder, as the domestic debut Qualcomm Xiaolong 835 platform (supported QC4.0) phones, why is not equipped with the technology can be called QC4.0 black, while still using the previous generation QC3.0?
This article Original Address: https: //www.eeboard.com/evaluation/mi6qc4/
6 charging millet official website describes the specifications, we clearly see millet 6 still uses QC3.0 charging technology, 18W.
6 seen millet dismantling students should be able to be seen, both ID millet 6 internal design or materials, as are all the layout conscience, primarily the RF circuit side of PCB.
Back of the motherboard 835 is snapdragon internet and power management, the charging circuit.
You can clearly see, millet 6 not only equipped with the latest Snapdragon 835 platform, is also equipped with support for Qualcomm's latest QC4.0 charge management chip SMB1381. SMB1381 has a low impedance, up to 95% of the peak efficiency and advanced fast charging characteristics (e.g. differential sensing cell), by a height less than 0.8 mm portfolio charge solution via any 5V USB Type-C or a high voltage power supply, ultrathin the mobile terminal provides the fastest battery charging.
From these points we have been very clear to see the millet 6 does have a plan to engage in QC4.0 intention, and that is what made this such a dare millet forward in enterprise also QC4.0 "daunting" of it?
Prior to this, we first is that the mainstream mobile phone manufacturers currently on the market using the fast charge technology, I believe everyone on oppo "charge five minutes, call two hours," the brainwashing slogan impressed, can be described as well known. Currently the oppo VOOC flash charging technology power is 20W, also use low voltage high current charging technology, but in my mind, is the first domestic fast-charging technology low voltage high current, very good reputation. Huawei is then Super Charge, also a low voltage high current scheme, for the first time come out on mate9, power was about 22.5W, then that is the most used Qualcomm QC3.0 program, more mature, but compared to the former two, maximum power is 18W.
Today Qualcomm introduced QC4.0 Biao is more out of a very slogan "charge 5 minutes, 5 hours," compared to previous generations of fast-charging technology, has been a qualitative leap.
QC4.0 was launched last year at the end of the program, charging time is shorter, more efficient, compared with QC 3.0, QC4.0 faster charging up to 20% efficiency improvement up to 30%, the maximum output power of 28W while better enhance the conversion rate and reduce charger, cell phone temperatures.
QC 4.0 and supports USB Type-C and USB-PD, supports Dual Charge, canceled 12V voltage profile, 5V maximum output 5.6A, 9V maximum output. 3A, and the voltage of 20mV profile subdivided to continue as a file, so this embodiment can be widely applied to various connection lines and the adapter.
But just in the last six months, QC 4.0 release, why no one vendor using QuickCharge4.0 fast charge technology, volume shipments of millet has also just adopted QuickCharge3.0 technology. And obviously seemingly fast charge 4.0 program, why not implement QC4.0?
This is the ideal and the reality gap! ! !
PPT Qualcomm released from the point of view, QC4.0 very good, but in the actual product design, we must consider not only the cost of the entire program, but also from mobile phone integration, the overall thermal performance, security, and many other considerations. Such problems brought on the lot, such as charging head design, especially the first person to eat crab, both the design costs, production costs will improve a lot, followed by a battery, battery production technology certainly needs to be improved, as it is now the 6 Scud battery millet can not safely accommodate QC4.0 fast charge is also a primary consideration, or just like Samsung's boom note7 same.
So, it seems to add a fast charge only unilateral, but actually involve all aspects, so this is not the first time added 6 millet QC 4.0 fast-charging technology can be understood, first of all itself QC 4.0 technology in mobile phones immature, battery technology is also in urgent need of improvement, no doubt the cost will increase a lot, but also have a lot of insecurity, and a cost is known to millet 6 certainly did conservative radical in fact, personally, this is a business species is a good thing, or very easy to become the next BOOM note7, but again, for consumers, is very regrettable.
OK, finished 6 of millet regret, let us look at, allegedly released tomorrow nubia Z17 will be supported QC4.0 the true sense of the global mobile phone, is not it a gimmick? We can wait and see!
And once nubia Z17 equipped with the QC 4.0 real fast charging scheme, does that mean there will be more manufacturers to follow up, does that indicate that the door QC 4.0 era will really open?
Original declaration: This article is originally created by the panel network, declined!
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