Thursday, 16 July 2020 11:51

OPPO announces new technologies for flash-charging

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The 110W flash charger. The 110W flash charger. Courtesy OPPO

Chinese smartphone maker OPPO has announced a new flash charge line-up of what it claims are ground-breaking technologies, including a 125W flash charge which can charge a 4000mAh battery up to 41% in five minutes.

In a statement, the company said it was also announcing 65W AirVOOC wireless charging an ultra-small 50W mini SuperVOOC charge and a 110W flash charger.

With these new developments in flash charging, OPPO reaffirms its place as the flash charge leader as the brand continues to pave the way in safe, fast charging technologies, with it's Find X2 Pro device currently having the fastest charging technology commercially available on the market.

"The accelerated 5G rollout worldwide, as well as the increasing diversification of high-power-consumption applications such as gaming and video viewing, represent new challenges for the battery life of mobile phones and user charging experience. OPPO has been leading the development of fast charging ever since VOOC flash charge was launched in 2014," said OPPO Australia managing director Michael Tran.

"Now, we are committed to continuing to build on our expertise and advantages in the field of high power, wireless and ultra-small charging technologies in order to provide users with a safe, efficient and convenient ultra-fast charging experience."

The company said the 125W flash charge technology was the latest flash charge technological breakthrough for the smartphone industry.

"With an advanced encryption algorithm and strict temperature control regulators, it will enable the safe and efficient use of flash charging," the statement said.

"The 65W AirVOOC wireless flash charge will allow users to charge faster compared to wired charging. The 50W mini SuperVOOC charger and the 110W flash charger, which are introduced for the first time are unique innovations of OPPO's VOOC flash charge technology, are field leaders in the miniaturisation of high-power chargers as a result of their unprecedented light, thin and portable features."

Explaining the technology, the company said the 125W flash charge technology used direct charging technology which was able to charge a 4000mAh battery up to 41% in five minutes and fully charge it in 20 minutes at the fastest rate. It was compatible with previous SuperVOOC and VOOC flash charge protocols and also supported mainstream protocols including 65W PD and 125W PPS. At the moment, it was the most advanced flash charging technology in the industry.

The 125W flash charge has evolved from SuperVOOC's technical design and undergone a comprehensive hardware architecture upgrade.

It can support a charging scheme of up to 20V 6.25A and has significantly improved power density properties in order to effectively reduce charging time whilst simultaneously not increasing the size of the charger. In terms of battery, it is equipped with double-6C cells with breakthrough battery ratio, industry-leading multiple tab structures, charge pumps and a highly integrated MCU to improve charging efficiency.

The technology has strengthened the safety protection features in the system by adding 10 additional temperature sensors which monitor the charging status and ensure maximum safety during charging. Furthermore, the platform uses fuse overvoltage protection measures, Type-C to Type-C wire as well as 128-bit high-strength encryption algorithm to enhance safety.

The chances of something like what happened to the Samsung Galaxy Note 7 have been ruled out.

OPPO said: "The 65W AirVOOC wireless flash charge can fully charge a 4000mAh battery in 30 minutes at its fastest rate, adopting self-developed isolated charge pump technology and parallel dual-coil design to further increase wireless charging efficiency.

"The technology has five-fold safety protection measures in addition to a foreign object detection function. It is also compatible with the Qi standard and provides users with a cable-free and super-fast charging experience.

"The bottom of the charger is equipped with a semiconductor cooler in order to adjust the heat entering and exiting, thereby ensuring that the handset is not hot after the appliance has been charged. In this case, the temperature of the back of the phone is kept over 2℃ lower than that of only using the fan to dissipate heat. The unique design makes mobile phone charging more convenient and has the capacity for high-power charging."

It added that these unique features meant that the 65W AirVOOC flash charge would provide a new wireless charging experience, as users' expectations of wireless charging rose.

The small, thin 50W Mini SuperVOOC charger and the 110W Mini-Flash Charger were claimed to feature unique dual-level architecture.

The company claimed its 50W mini SuperVOOC charger revolutionised the architecture of high-power chargers by adopting a new topological design, finally allowing for the miniaturisation of fast charging technology, with the new 50W mini SuperVOOC being only 1.05cm thick.

It is compatible with VOOC protocols and supports mainstream protocols like 27W PD and 50W PPS. The 50W mini SuperVOOC charger can charge a variety of devices including mobile phones and laptops.

OPPO said as of June, it had applied for more than 2800 global patents for flash charging. It claimed the company's 30+ smartphone models featuring VOOC flash charge technology had delivered the ultra-fast charging experience to over 157 million users globally.


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Sam Varghese

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Sam Varghese has been writing for iTWire since 2006, a year after the site came into existence. For nearly a decade thereafter, he wrote mostly about free and open source software, based on his own use of this genre of software. Since May 2016, he has been writing across many areas of technology. He has been a journalist for nearly 40 years in India (Indian Express and Deccan Herald), the UAE (Khaleej Times) and Australia (Daily Commercial News (now defunct) and The Age). His personal blog is titled Irregular Expression.

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