Sep 16, 2019 Pageview:765
Since the smartphone screen bigger, mobile life became the object of a lot of people complain about.And fast charging technology naturally became the savior, help mobile phone manufacturer alleviate the problem of life.After all, keep the cell phone charged or faster can bring substantial help to many people.
Don't know a lot of people are actually very quick charge, that is very easy to misunderstanding for this technology.For example an unsafe quick charge?Will not damage the mobile phone battery and so on.Then we will start from these problems to find out, it will be popular technology in the smart phone.
What is a quick charge?
To understand the problem, we should first from the perspective of a battery charging principle.The battery charge and discharge process, is the process of cathode and anode release and absorption of ions.The anode can produce oxygen through the diaphragm is absorbed by the cathode gas chamber, the chemical reaction to form a circular form of reaction is a simple charging process.
Currently on the market including qualcomm QuickCharge2.0, mediatek PumpExpress and OPPOVOOC flash filling, several mainstream quick charge technology, basic it is implemented through the following ways:
Voltage constant, improve current;
Constant current, improve voltage;
Voltage and current are improved.
This is like a pool of water in water injection, and improve the voltage and current is like improve the velocity of water flow and water yield of per unit time.When the parameter improve, filled with water (charge) speed will be a significant improvement.
But to truly achieve quick charge on the mobile phone, not only do promotion in the voltage and current is enough.Quick charge technology requires a set of custom circuits, batteries, interface, data line, and form a complete set of quick charge adapter, you also need to do a set of intelligent power management system, in order to keep the cell phone can according to the different charging conditions, provide safe and intelligent charging protection.
Qualcomm/OPPO mediatek three send quick charge what's different?
Because of quick charge technology for circuit design as well as the requirements of the chip is very high, so a lot of to create mobile phone manufacturers in the form of purchasing chip independently developed it is often difficult to belong to oneself of quick charge technology.OPPO is an exception, of course, the concept is not deeply rooted in the hearts of the people in the quick charge, it will have the opportunity to make amazing "charging for five minutes, talking two hours" quick charge technology.
What phone support quick charge?
The support quick charge of mobile phone basic have these factions: qualcomm, OPPO, mediatek and so on.
Say first high-pass faction, as a chip company, it will only need to support quick charge of power management module into Soc (processor) can will provide other phone quick charge of a complete set of solutions company, reduce some of the research and development expenses handset makers.But everyone with a quick charge scheme, it is difficult to attract more consumers, or less a stunt.So many vendors will plan slightly modify some of the former, launched a waistcoat.Such as Samsung FastCharge is qualcomm QuickCharge2.0 waistcoat.
Qualcomm QuickCharge2.0 it at present is mainly through to the charging voltage and current at the same time improve the way to realize the quick charge.In fact as long as you recognize your phone CPU model which is from qualcomm series?Can know if your phone support quick charge.But many handset vendors will also be qualcomm quick charge function to castrated, you still need to check the model, the adopted qualcomm chip of mobile phone is still part of quick charge mobile phone market share is bigger.Of course!And qualcomm QuickCharge3.0 already on the road.
OPPO faction VOOC flash filling technology is not unfounded, as early as 14 years published OPPOFind7, this phone will pick up the first generation of OPPO flash filling technology.OPPO in mobile phone batteries, and interfaces, it adds 4 more than ordinary battery contact, again interface also increased to 7 pin interface.OPPO generation VOOC flash charging way is like a few more in the pool water pipe together with water, recharge rate has the obvious improvement.
In the second generation since OPPON3 OPPO flash filling technology not only solved the problem of the adapter volume is too large, will also be charging output up to 5 v / 5 a.And on the R7Plus and R7s, OPPO will increase fast charging technology to unprecedented heights.The OPPO 2014 basic support high-end models in the quick charge technology.
Mediatek MTK faction is as rivals qualcomm fire up, to catch up developed a quick charge technology.Like qualcomm, as a chip company, mediatek make quick charge technology is not a difficult thing.Just, compete with qualcomm, mediatek PumpExpress fast filling technology is slightly inferior.In MT6595, open platform, such as the MT6732 PumpExpressPlus charging technology, output up to 9 v2a (18 w), the only charge is about 50% faster than the ordinary, but compared and qualcomm is as high as 36 w output, gap is very big.
Mediatek of quick charge technology to the hand by changing something change a name, meizu mCharge is PumpExpressPlus waistcoat.At present most of the one thousand yuan of MTK chip machine and mid-range machine including Letv, meizu support MTK of quick charge technology.
Support quick charge cell phone recharge quickly?
Need to match the quick charge power adapter
Not in charge this matter, only mobile phone but to make a quarrel.Support quick charge mobile phone need to match the support technology of same power adapter to achieve quick charge.The charger plug one end in 220 v ac socket, on the other side received support quick charge mobile phone with usb data cable.The whole process through the transformer high voltage alternating current into a low voltage (5 v) dc.If the power adapter does not support quick charge, the output voltage was less than standard of quick charge.
Support quick charge mobile power to quick charge
It also especially on mobile power supply, so even if you have a support quick charge mobile phone, so if you charge mobile power supply does not support the fast, then charge will not be fast.
Different standard of quick charge cannot be Shared
If I use support qualcomm quick charge mobile power supply or power adapter to charge to support a quick charge of OPPO mobile phones, can realize quick charge?No, because every quick charge standard is different, because of the different power management chip, so the mixed with common is unable to realize quick charge.
Quick charge danger?Can cause damage to the battery?
Say so many, back to you the most concern.
Quick charge is dangerous?
For now, and the quick charge or have a certain technical support.Because power management module in a set of quick charge scheme already preset phone batteries are the highest voltage, current, temperature and other security protection mechanism, including the temperature protection, short circuit protection, over discharge protection, over current protection, over voltage protection and so on many protection technology, exactly speaking, this kind of quick charge technology is more security., of course, due to rapid current and voltage is higher than that of normal charging condition, do not rule out have a chance in the power management module problems will cause some dangerous accidents, but it is quite another.
Can cause damage to the battery?
We know that in front of the battery charging principle, believe friends also know some basic.On the principle of it, cell damage is basically comes from two aspects: on the one hand, is when the battery charge and discharge the battery cathode and anode with ion release and absorption of shrink and swell, long time quick charge can destroy the chemical battery, lead to shorten the battery life.When quick charge on the other hand, due to the high current, the heating effect of the current increases, lead to battery can produce high temperature, high temperature can make capacity of lift and batteries, permanent damage phenomenon.
In fact, under the normal charging status in fact will be a little damage to the battery, but the damage is very low, take as long as a year or more time will show it on your phone.So quick charge or ordinary actually can produce irreversible damage to the battery charging, quick charge damage only a little bit will be better than ordinary charging status.But from the current under various kinds of security of quick charge technology, the battery damage or under a state of safe and reasonable.
In general, now that most of the mobile phone may not replace the battery, for the mobile phone wants to use a few years, still had better don't choose quick charge mobile phones.For the most current in one year, this influence is negligible.
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