What technologies do SuperFlash 2.0 use?

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What technologies do SuperFlash 2.0 use?

The GaN charger was first used as a charger for mobile phones and commercialized.

 The output parameter of Super Flash Charger 2.0 is 10V6.5A, up to 65W. If you follow the conventional design, the charger must be huge, which will bring inconvenience to the user. It will be the most nitriding of the current technology. Gallium power devices are added to the charger design. The high-frequency and highly integrated GaN device makes the PCB board design more compact, while the high efficiency and low temperature rise characteristics finally realize the miniaturization of the high-power charger. This is also the first time for mobile phone brand manufacturers. Use a GaN charger in the charger.

Double-cell high-voltage direct charging scheme is used

Traditional single-cell high-voltage low-current charging mode, charger output 9V or even 12V and mobile phone battery voltage between 3.0V~4.4V, and then internal conversion by mobile phone, the pressure difference is large, resulting in low efficiency, heat can not be controlled, so charging Power has been stalled.

As early as 2014, the 25W flash charging technology was launched. The other idea was to use a low-voltage and high-current direct charging scheme. The charger needs to output the voltage of the battery core, and the conversion link is eliminated in the mobile phone, which brings the consumer a fast charge. An efficient flashing experience that does not heat up. The low-voltage and high-current direct charging scheme always has an upper limit. If the current is increased again, the wire diameter requirement and the interface contact are all severe tests. How can the power be increased again?

At the MWC 2016 Mobile World Congress, the concept of super flash charging technology was introduced at the time of the 100W ultra-high power concept, which can be filled with 2500mAh battery in 15 minutes. The technology was first produced in the 2018 Find X Super Flash version and the Find X Lamborghini version. The super flash charging uses a dual-cell series design. The high-voltage direct charging solution can fill a 3400mAh Find X super flash version or Find X Lamborghini version in 35 minutes.

In 2019, Super Flash Charger 2.0 uses a dual-cell series direct charging scheme, built-in two 2000mAh batteries, and through systemic re-optimization, the charging power is increased to 65W, thus achieving a mobile phone that can be filled with a 4000mAh battery in 30 minutes. . But the shortening of 5 minutes is actually a technical breakthrough in Super Flash in 15 months.