On February 28, at the opening day of MWC2022 Conference, the Honor Magic4 series was officially released. The new product goes further in the fast charging technology, of which the Honor Magic4 Pro is equipped with a 4600mAh capacity battery, supports 100W wired super fast charge and 50W wireless super fast charge, wired 30 minutes can be charged to 100% of the power, and the overseas version supports 100W wireless super fast charge.
Coincidentally, another mobile phone brand, Realme, really made the world's first 150W flash charging technology at MWC 2022, which can charge 50% in 5 minutes, once again refreshing the charging speed of the smartphone. Mobile Phone China understands that the upcoming release of the new Zhenmei GT Neo3 will be equipped with 150W light speed second charging technology, becoming the fastest charging mobile phone in the history of Realme, and this phone may also be the fastest charging smartphone in the world.
The metamorphosis of mobile phone charging
For smart phones, charging is a very important aspect, and now we see that mobile phones on the market have a variety of charging standards, and there are many ways to charge: fast charging, wireless charging, reverse charging. The time for mobile phones to fully charge is also getting shorter and shorter, but did you know that the development history of fast charging technology is only ten years.
Turning the time back to 10 years ago, USB-IF proposed the USB-PD 1.0 standard (USB Power Delivery), which depicted a beautiful grand plan for the USB interface to reach up to 100W power supply capacity, laying the groundwork for the future development of fast charging.
In 2013, Qualcomm launched QC1.0, breaking the limitation of 5V1A, the voltage and current increased to 5V2A, and the charging time was shortened by 40%, so that the mobile phone can be regarded as truly entering the era of fast charging. Then in 2014, Qualcomm released QC2.0, compared with the QC1.0 standard, from 5V unchanged for many years to 9V/12V/20V, and QC1.0 maintained the same 2A current to achieve 18W high-power power transmission, and the wire does not require special treatment, the old wired materials can be universal.
Also in 2014, USB-IF released the PD 2.0 protocol and the USB Type-C 1.0 interface standard, which are revolutionary. Compared with Micro-USB, the USB Type-C interface supports up to 20V/5A power transfer.
Also in this year, domestic brands also ushered in the era of fast charging, OPPO launched the OPPO Find 7 mobile phone, equipped with a new VOOC flash charging technology, the maximum charging current reached 4.5A, 3000mAh battery 30 minutes charged to 75%, of which we are familiar with the slogan "charge 5 minutes, talk for two hours" was also born at this time.
Subsequently, domestic mobile phone manufacturers also began to launch mobile phones that support fast charging technology, and in the field of fast charging, mobile phone manufacturers are even more hot. We can see the wattage of the mobile phone's fast charge, rubbing upwards.
100W fast charging is easy?
For a long time, the fast charging power of smart phones has stayed at 65W, but recently the fast charging power of mobile phones has been greatly improved, and we found that the power of fast charging in the new products launched by mobile phone brands has reached 100W, and even exceeded 100W.
Let's go back to realme, which also announced the world's first 100W-200W light-speed second charging architecture - UDCA at MWC 2022, which combines speed, security and fast-charging battery technology. It is reported that the UDCA light-speed second charging architecture that will be put into commercial uses a parallel multi-channel charge pump to increase the charging current, and achieves 150W high-power flash charging with lower conversion loss, lower resistance and lower temperature. At the same time, UDCA also has a temperature control management mechanism with leading algorithms, so that the operating temperature is always kept below 43 ° C, so that long-term use does not need to worry about the risk of heat.
Similarly, OPPO officially launched the 150W Longevity Edition Super Flash Charge and the 240W Super Flash Charge at MWC 2022. Among them, the 150W longevity version of the super flash charge can increase the battery life of the mobile phone by twice, and the 240W super flash charge technology can do 9 minutes to charge the equivalent 4500mAh battery to 100%, up to support 24V/10A charging, so that the mobile phone charging time has officially entered the era of single digits.
In terms of flash charging, Xiaomi has always been at the forefront, and there are already many mobile phones that support 120W flash charging. At the end of last year, the Xiaomi Mi 12 Pro was released, and in addition to the new 120W surging second charging technology, the new machine is also equipped with the Xiaomi self-developed charging chip surging P1, which can be fully filled in only 18 minutes in extreme speed mode.
Charge faster and more steadily
In fact, in simple terms, charging is a physical problem, and the principle of fast charging is to shorten the time required for charging by increasing the charging power. There are three ways to increase the power, namely to increase the voltage, increase the current and increase the voltage and current at the same time; the above technology is derived from these principles.
Nowadays, high power is no longer the only power point of fast charging. The battery cell has also become the object of attention of mobile phone manufacturers, just last year Xiaomi first self-developed charging chip surging P1, the product to achieve a single battery cell 120W wired second charge. According to the official introduction, the surging P1 takes over the complex structure of the traditional 5-charge pump, converts the high-voltage power input into the mobile phone more efficiently into a large current that can be directly charged to the battery; has a 4:1 ultra-high efficiency architecture with adaptive switching frequency, and the resonant topology efficiency is as high as 97.5%, so that the endurance and charging performance reach the best balance.
It should be noted that mobile phone manufacturers can not blindly pursue fast charging, charging safely and not hurting the battery is equally important. In the fast charging scenario, the user's mobile phone security and battery life can be guaranteed to the greatest extent.
Write at the end
Looking back, in just 10 years, fast charging technology has undergone earth-shaking changes. Especially in domestic brands, fast charging technology is like sitting on a rocket, and the "whizzing" is constantly advancing, allowing us to see the rapid development of technology. At present, mobile phone fast charging technology is in a stage of rapid development, in the future, we may be able to see that the mobile phone is fully charged will be a matter of minutes, before going out can also be quickly charged, do not have to worry about battery life troubles.
（CNMO）