1, the charging speed is not the same, flash charging is faster.
2, the voltage is not the same when charging, flash charging is low voltage fast charging, fast charging is high voltage fast charging.
3, the heating degree of the mobile phone is not the same when charging, the flash charging temperature is low, and the fast charging temperature is high.
4, the security of the mobile phone is not the same when charging, flash charging is safer.
Flash charge is a company that has developed its own fast charging technology. In fact, flash charge is a type of fast charge, but mobile phone manufacturers in order to highlight the advantages of their own research and development of fast charge technology, they use a unique name.
In addition to OPPO's VOOC flash charging technology on the market, we can also see the fast charging of one Plus mobile phones. In addition, there is a mobile phone processor platform, Qualcomm released QC fast charge and Mediatek released PE fast charge.
Extended information:
VOOC flash charging principle:
VOOC flash charge adds an MCU smart chip to the adapter, thus realizing the revolutionary open voltage loop, segmented constant current technology. If the mobile phone is compared to a car, the ordinary charging accelerator is only 1.2L, even if you step on the accelerator, you can only start slowly and move slowly. The open voltage loop of the VOOC flash charge increases the displacement to more than 3L, and you can go fast as long as you lightly press the accelerator.
Thanks to the precise adjustment of the MCU to the current, VOOC to achieve the segmentation constant current and split technology, when starting, VOOC will be put into high gear, in the middle, will automatically jump to the medium speed, so that you move forward quickly, and at the end will switch to the low gear, so that you arrive at the station smoothly. Compared with traditional over-current protection, VOOC has for the first time created a full-end five-fold protection technology from the adapter to the interface to the inside of the phone.
First level, adapter overload protection. At the front end, when the current enters the adapter, the sensor in it will detect the voltage and current in real time, and when the detection is safe and reliable, the MOSFET (protection) switch will automatically turn on the flash charge. The exception is immediately closed.
Second level, flash condition identification protection. When the current passes through the adapter, the MCU chip in it will recognize whether the device supports flash charging, and flash charging can be turned on only if it supports it, and the second overload protection can be turned on.
Level 3: Interface overload protection. In the middle, when the current enters the phone, the MCU in the phone will control the third MOSFET (protection) switch at the specially customized 7pinUSB interface, implementing the third level of overload protection.
Fourth stage, battery overload protection. At the end, special IC and MOSFET (protection) switches inside the battery form a fourth line of defense. Responsible for overload protection of voltage and current entering the battery.
Level five, battery fuse protection. In the event of an anomaly, the fuse in the battery will be blown immediately, and the current input will be physically cut off.
The five-fold protection increases the charging safety index from PPM (parts per million) to space-grade DPM (parts per billion), and VOOC also uses the MCU to take over the decompress circuit that causes the phone to heat up. Solve the heating problem of mobile phone charging. So VOOC is still the coolest flash charger in the world