VOOC flash charge technology: fast and safe

The mobile phone becomes lighter and lighter, and the replacement of smart phone configurations is also very rapid. The strong performance of the four-core, eight-core, full-HD, 2K flagship emerges in an endless stream, but the battery life has become a pain in the hearts of users and there is no way to accept only one day "Even" a few charge a day" or carry a charging treasure with you. Battery technology is difficult to break through. To increase the lifespan of smart phones can only increase battery capacity or install so-called battery management software. However, it is always a temporary solution. Increasing capacity also makes it difficult for mobile phones to maintain a slim figure. Previously, manufacturers have also made a lot of trials and efforts, but they are really lackluster.

With the release of OPPO Find7, the industry has seen new ideas. Oppo avoided the battery and battery capacity, instead improved the charging technology, developed a fast charging technology - VOOC flash charge, in order to achieve "short-term high-efficiency" charging effect.

How efficient is it? The data provided by the OPPO official is: The charging efficiency is increased by 4 times, 26% can be charged in 10 minutes, 75% can be charged in 30 minutes, and 2 hours can be charged by charging for 5 minutes.

How to achieve VOOC flash charge technology?

Under normal circumstances, increasing the battery's charging power is a relatively common method, but increasing the charging voltage will cause the phone to heat up and shorten the battery life. OPPO Find 7 starts by increasing the current: We know that the smart phone charger output circuit is now generally 1A, Find7 will increase the charger output current to 4.5A, while using a low voltage output of 4.5V. As a result, the charging speed is 4 times faster than in the past.

However, users with a little common sense will have worries. What about the security problems caused by such a large current?

OPPO is fully prepared for the entire charging system:

First, while boosting the current, the power adapter and battery are specifically tailored, and a stable and fast output is ensured through the open voltage loop and segmented constant current technology.

Second, OPPO implanted an MCU chip in the fuselage and power adapter to intelligently control the charging process. Security measures were set in the circuit of the battery and the adapter. The metal contact of the battery was changed from the common four to eight. Four contacts are used to control the circuit, and the adapter can handle protection measures in both directions.

Thirdly, OPPO also prepared “smart full-end five-level protection technology”: 1. Adapter overload protection; 2. Flash charge condition determination protection; 3. Interface overload protection; 4. Battery overload protection; 5. Battery fuse protection . In any link, once the voltage and current exceed the conditional limit, it will automatically adjust or terminate to ensure the stability and safety of the charging.

Finally, the OPPO also prepared the last "sweet straw" - using a primitive method is the battery fuse protection, that is, we often say that the fuse can work in the case of failure of all methods, and more measures At the same time, ensure safety is safe.

OPPO developed this VOOC Flash Charger technology for 3 years and won 16 patents. Now it is one of the selling points of Find7.

The smart phone industry has long been the Red Sea. In the first quarter of this year, Apple and Samsung took a total of 106% of the profits of the smart phone industry, and other smartphone manufacturers under negative profits played hard, but most of the manufacturers still stayed in the fight to spell out the pixels. In the realm of resolution, when it comes to shipping, it is understandable that these market behaviors are nothing to do, but to stand out and lead the industry development depends on technology. Although the existing technological innovations are difficult, they can still explore the users. The excitement, heap hardware is not smart. Although the VOOC flash charge technology is only one of the selling points in OPPO Find7 advertising, the effect needs to be tested by users, but its direction and intention are worthy of deep thinking from other manufacturers.