On July 15, OPPO released a new generation of super flash charging technology, with a maximum power of 125W, and a 4000mAh battery can be filled in 20 minutes. Let alone the charging speed, the power figure of this super flash charge is enough to be \"scary\
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But obviously, the 125W super flash charge achieved by OPPO far exceeds the average level of the industry, and OPPO can achieve such a fast charge technology is not achieved overnight, \"charge 2 minutes, call two hours\" slogan has been deeply popular six years ago. From the initial 20W power to today's 125W, OPPO's flash charging technology development has also been at the forefront of the industry.
01 From 20W to 125W all the way up the speed to fill the phone in the time of a cup of coffee
● VOOC flash charge
1, OPPO Find 7 first VOOC flash charge low voltage solution to solve industry problems
In 2014, the smartphone industry has been hampered by the slow development of battery technology, and fast charging of mobile phones has gradually become an industry consensus to solve the problem of battery life. At this time, the Micro USB interface is commonly used on smart phones, and its internal structure leads to its limited current load, so most of the industry uses increased voltage to improve the overall charging power, such as 9V\/2A, and the power reaches 18W.
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This solution does not have high requirements on the wire, because the ordinary Micro USB interface data cable can carry 2A power, so the realization cost is low. However, there is a problem with this solution, that is, the charging conversion rate is low, and the embodiment is that the body will have obvious heat when charging.
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In March, with the release of the classic model Find 7, OPPO brought a new fast charge solution: VOOC flash charge. This fast charge scheme is a 5V\/4A low voltage scheme, its advantage is that the charging conversion rate is higher, the heat of the mobile phone is small when charging, even while playing games, the heat of the mobile phone can be within the acceptable range. Under the support of 20W charging power, the 3000mAh battery can charge 75% in 30 minutes.
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The ordinary Micro USB interface data cable cannot carry the current of 4A, so OPPO modified the data cable and increased the contacts in the connector to 7, which is why although they are all Micro USB interface data cables, only OPPO's original cable can achieve VOOC fast charge.
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Of course, the VOOC flash charge is not only improved by the data cable, OPPO has also optimized the battery, circuit, and charger, such as the MCU smart chip in the charging head, and on this basis, it ADAPTS the intelligent all-end five-level protection technology, in order to ensure the safety of the mobile phone flash charge.
2, VOOC flash charging the second generation of the same year to reduce the volume can be plugged higher current
I believe readers have found that the first generation of VOOC flash charger is not only large, but also integrated with the charging cable, that is to say, the transmission of data also needs a separate data cable, which brings obvious inconvenience to the charging and data transmission of the mobile phone, so naturally became the second generation of VOOC flash charger the first problem to solve.
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In this context, OPPO launched the VOOC mini power adapter, which is not only reduced in size by half, but also uses a pluggable data cable design. In addition, the power adapter output current is also increased to 5A, power up to 25W. The unique green interface of the charger and data cable is believed to be fresh in the memory of OPPO N3 and OPPO R5 users.
3, VOOC 3.0 power is not increased but the speed is faster because of the VFC algorithm
In 2019, VOOC 3.0 was officially released, and the new OPPO Reno series was launched. Interestingly, VOOC 3.0 has no increase in peak power compared to VOOC 2.0, but the overall charging time has been reduced by 23.8%. The reason lies in the adoption of VFC fast charging algorithm.
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VFC fast charging algorithm adopts a new trickle charging algorithm, and uses voltage and current monitoring chip to control and optimize the charging function, so as to improve the overall charging speed.
4, VOOC 4.0 power increase 4000mAh battery 70 minutes full
Also last year, VOOC 4.0 also officially met with us, and this generation of fast charge protocol is used on the OPPO Reno3 series. VOOC 4.0 supports charging power of up to 30W (5V\/6A), and can charge a 4000mAh capacity battery to 67% in 30 minutes and 100% in 73 minutes, which is 12% shorter than the previous technology.
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Maybe some friends will have questions when they see this: VOOC flash charge does not seem to stand out in terms of power? In fact, VOOC flash charge is only a kind of OPPO fast charge protocol, which has more widely used and more adaptive features. In addition, OPPO also has a high-end route and higher charging efficiency SuperVOOC flash charge, and the 125W super flash charge that OPPO has just released is in its list.
● Super flash charge
1, dual cell design to achieve 50W power the original SuperVOOC 35 minutes full OPPO Find X
In 2016, OPPO announced the concept of SuperVOOC Super flash charge at MWC, and this technology was officially commercialized in June 2018 with the arrival of OPPO Find X: up to 50W power, which can be filled with OPPO Find X in 35 minutes.
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To achieve 50W fast charging naturally can not rely solely on increasing voltage or current, SuperVOOC super flash charging solution is a new design of double cell. By connecting two cells in series, the voltage can be doubled in the case of 5A current, which greatly improves the charging rate.
2, charging head power double power SuperVOOC 2.0 up to 65W
In September 2019, the all-new SuperVOOC 2.0 was officially released, with a maximum power of 65W. The OPPO Ace was released shortly after, becoming the fastest commercially available charging technology at the time. SuperVOOC 2.0 continues to use the dual-cell direct charge architecture and is backward compatible with SuperVOOC and VOOC flash charge. Through the customization and optimization of hardware, software and algorithm, OPPO can improve the charging power, so that Reno Ace can be filled in 30 minutes, and truly achieve \"5 minutes of charging, 2 hours of black\".
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This time, OPPO is once again working on the power adapter, using a new semiconductor material - GaN (gallium nitride), which improves the charging efficiency, reduces the heat, effectively reduces the charging time, and further reduces the size of the adapter.
3, the new generation of super flash charge record 125W power full only 20 minutes
In less than a year, a new generation of super flash charger came out, and the power reached a staggering 125W. A phone with an equivalent 4000mAh battery energy can be charged to 41% in 5 minutes, and can be fully charged in 20 minutes. At the same time, the standby temperature of the screen during charging does not exceed 40 ° C, which is consistent with the previous generation of SuperVOOC.
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To achieve such good charging performance, the reason is that the new generation of super flash charge adopts a new upgraded technical architecture, and the parallel three-charge pump scheme with a conversion efficiency of up to 98% converts 20V 6.25A power into 10V 12.5A power through three parallel charge pumps. Each charge pump only needs to convert 20V 2.1A power of about 42W, effectively avoiding the overload and overheating of the charge pump caused by high current.
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It is worth mentioning that OPPO has once again started on the power adapter: using Type-C interface output, fully compatible with SuperVOOC, VOOC, and more support for 65W PD, 125W PPS, 36W QC, which can quickly charge devices such as laptops.
In addition, OPPO also introduced two power adapters -
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50W super flash cookie charger: adopts a thin design, shaped like a goose egg, and weighs only 60g. Compatible with the PD charging protocol, support up to 27W (9V3A) PD, at 100-240V voltage, support up to 50W (10V5A) PPS, can be charged for mobile phones, laptops and other devices. In addition, the OPPO 50W Cookie Superflash charger is fully compatible with VOOC and SuperVOOC.
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110W Superflash mini Charger: The pioneering dual-stage architecture achieves high efficiency power conversion and temperature rise control, the volume is only about 35.7cm3, the use of USB-C interface, support VOOC, PD, PPS, QC and other mainstream charging protocols, up to 65W PD, 110W PPS, 36W QC, can be charged for most electronic devices on the market.
Perhaps we did not expect that only a few years of development, a cup of coffee time can be filled with mobile phone battery aspirations really come true, so that we do not need to worry about mobile phone battery life. As a leader in the development of mobile phone fast charge technology, OPPO can be said to have brought us continuous surprises, but in fact the surprises are more than that.
02 From 30W to 65W mobile phone wireless fast charging into the era of pure meaning
Speaking of wireless charging this hot topic in the past two years, I believe everyone is not strange. In fact, wireless charging technology has appeared on mobile phones for several years, but its value can only be said to be better than nothing. Slow speed, the need for alignment, high heat, the existence of these problems make wireless charging look fresh for a long time, but it is very weak to use.
In recent years, wireless charging technology has been developed, charging power has increased from the original single digit to ten digits, coupled with the application of smart wearable devices to wireless charging technology, which makes the significance of mobile phone wireless charging gradually highlighted.
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Last year with SuperVOOC 2.0 released with 30W VOOC wireless flash charge, but it is interesting that OPPO did not put this 30W wireless VOOC flash charge into commercial use, but in April this year directly on the OPPO Ace2 mass production of 40W AirVOOC wireless flash charge technology. The 4000mAh battery can be fully charged in 56 minutes.
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This year, the AirVOOC has been upgraded again, with a maximum power of 65W and a 4000mAh battery that can be fully charged in just 30 minutes. The power of wireless charging can catch up with the rate of wired charging, and it is the wired rate of SuperVOOC 2.0 super flash charge, so the performance can indeed be said to be surprising.
It is reported that 65W AirVOOC wireless flash charging on the basis of 40W AirVOOC wireless flash charging technology, add a set of power channels, using double transmit (TX) control module, double transmit (TX) coil, double receive (RX) control module, double receive (TX) coil this dual wireless charging engine architecture, Thus, the wireless charging power is greatly increased. Moreover, the 65W AirVOOC introduces an esports class semiconductor cooling solution, ultimately achieving a body temperature of no more than 40 ° C.