This year, the major mobile phone manufacturers have chosen USB Type-C interfact, apple and 2016 Macbook Pro to a radical attitude strong promotion of Thunderbolt 3 (USB Type-C), also let the user interface standard to enter more sight. With the quick charge function is becoming a standard mobile phone, the fast charging technology patent "market separatism" unified trend and USB Type-C interface is a contradiction, people began to move people to prepare, people still wait and see. Around the phone fast charge technology, a joint war is quietly carried out.
Mobile phone fast charge you know also do not know
Intelligent mobile phone development up to now, in the face of increasingly powerful performance and battery life becomes shorter, the popularity of fast charging is particularly important, now, to the flagship to 100 yuan, fast charge will be, and a fast charge of these, you know.
So far, we have seen the fast charge is not a unified standard or regulations, fast charge of the definition of stay in the concept, that is: the power is greater than 10W (5V2A) is fast charge. Fast charging its essence is to improve the efficiency of charging, and the most direct factor affecting the efficiency of the charging is the current and voltage. So to improve the charging efficiency, only from the two aspects of improving the current and voltage. But also note, for the intelligent mobile phone, mobile phone charger power determines the maximum possible receiving the charging voltage and current, and the mobile phone itself CPU components determines the current and voltage of the biggest release of mobile phone.
Many manufacturers in the mobile phone PPT in the promotion of the 7.5W/10W support fast charging, charging speed and the traditional 5V1A is much faster than a lot. But the fast charge is not equal to the absolute fast, fast charging is decided by charging IC, can realize the fast charging of the mobile phone are integrated with fast charging IC snapdragon 652 processor after direct integration in Soc (manufacturers can choose to remove). Does not support the rapid charging of the phone even with a fast charger can not achieve rapid effect.
In addition, fast charging is not equal to every mobile phone plug in the charger can charge 5 minutes to two hours of talk, we often see many users said he supports fast charging adapter fast charging mobile phone plug in the original charge, sometimes fast, sometimes not fast. Because it is enabled fast charge, this is not plugged into the adapter, but by the charge IC decision. Any mobile phone will not charge the full use of the fastest speed, if the long full load of work, will lead to a large number of heating, and even burned. Also means that the fast charge when the power is low, the effect is very obvious, and gradually will reduce the power, so the charge will be very slow.
Quick charge standard unified, Apple will break the bureau?
At present, no matter what kind of fast charging protocol, the charger and the chip in the device work together, it is possible to achieve a good segmentation control. After entering into the late charge trickle charge, mobile phone battery limit bear voltage and current, temperature, radiation, so as to ensure the minimum damage to the battery. Under the premise of product technology clearance, fast charge on the impact of the battery is not as big as we imagined, at least in a smart phone from the purchase to the elimination of the life cycle, the battery will not be particularly severe attenuation.
The patent will come in a throng
No industry standard is the largest market for fast filling defect, because the battery quality, data lines with different brands of the interface between the data lines, quality control is not a cause, fast charge standards, specifications, for consumers to use this on the increase and the constant, fast charging market cost the invisible is pulled.
Currently on the market of products, fast charging scheme uses roughly four kinds, namely high version of QuickCharge (QC2.0, QC3.0), MediaTek Version (Pump Express and Pump Express plus), OPPO VOOC, and TI Maxcharge, the last one is actually a combination of high pass version of QC2.0 and MediaTek a Pump Express protocol, can be seen as an integrated version of the original USB 5V charging breakthrough technology, so we will be the mainstream technology of fast charging is divided into the first three.
Quick charge standard unified, Apple will break the bureau?
VOOC OPPO flash charge is representative of the low voltage high current mode, in the case of low voltage to increase the charging current and then improve the charging speed. The fast charging scheme of Charge Quick is another high voltage and high current technology, which can improve the output voltage of the charger to achieve fast charging.
MediaTek MTK Pump Express1.0 2 is also using the high voltage and low current technology, but Pump Express3.0 is changed to the low voltage DC technology, began to "differences" with Qualcomm Quick Charge3.0 at the technical level, so that the separate situation intensified in the fast charge on patent.
Because the mobile phone charging process, first adapter has sufficient power output capacity, Cable to load current so high, then the mobile phone charging circuit to heat in a certain range, then the heat transfer to the battery, the battery will support the charging current is so high, which involves many aspects, but also relates to to different suppliers.
And this is precisely the current rapid charging technology program, VOOC MTK, Pump Express OPPO, MaxCharge TI, Quick Charge Qualcomm, Delivery Power and other protocols, the standard is not an important factor. According to industry sources, OPPO as early as last year in the Ministry of industry standards group advocate low voltage high current fast charge technology for the national standard, while HUAWEI is advocating high voltage low current
