A charging method capable of bringing the battery to or near a fully charged state within 1 to 5 hours. Commonly used for traction batteries that require charging in a fully charged state in a short period of time. The normal charging of the battery takes about 10 to 20 hours. How to charge quickly without damaging the performance and life of the battery is a hot research topic.
Mobile phone fast charging technology is being used by more and more mobile phone manufacturers. Nowadays people are more and more dependent on mobile phones, and they are holding mobile phones almost all the time, so now it is the most painful when people have no power. People who play the game hope that the mobile phone can quickly charge the battery and quickly return the phone to its own arms ^-^! So now mobile phone fast charging technology is getting more and more attention! I am here to sort out some knowledge about the fast charging of mobile phones, what are the technologies for fast charging of mobile phones, for your reference!
Tools/raw materials
Fast charging mobile phone
Method / step
Mobile phone fast charging technology overview:
At present, mobile phone fast charging technology is mainly divided into two categories: low-voltage fast charging, high-voltage fast charging.
There are four main types of mobile phone fast charging technology: OPPO's VOOC flash charging (charging 5 hours of talk for 2 hours of fast charging technology), Samsung's Fast Charge, Qualcomm's Quick Charge, and MediaTek's Pump Express.
Mobile phone fast charging technology introduction:
1, charging 5 minutes for 2 hours - OPPO's VOOC flash charging technologyThere are two general directions for increasing the charging speed. One is to increase the voltage, and the other is to increase the current. Increasing the voltage will increase the amount of heat generated during the charging process, accelerate the aging of the battery and may pose a safety hazard, so the actual effect is not good. In contrast, increasing the current is much more realistic. VOOC technology uses a low voltage and high current mode to ensure safety during charging.
The actual effect of VOOC flash charging is excellent. In 30 minutes, the 3000mAh battery can be filled with 75%, and 5 minutes is enough to charge the battery for 2 hours.
Currently, models using VOOC flash charging are: OPPO R7s, OPPO R7, OPPO R7 Plus, OPPO Find7, OPPO R5, OPPO N3, OPPO U3.
Qualcomm Quick Charge 2.0 technology is an upgraded version of Quick Charge 1.0 with a new specification. The charging speed is increased by simultaneously increasing the current and voltage. In order to prevent the damage caused by the voltage on the battery, Quick Charge 2.0 has added a special chip. In order to avoid the old version of the phone being burned by excessive current during charging, a special IC judgment switch has been added.
Data Acquisition Digital Potentiometers
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