Since brands such as Nokia have not been able to keep up with the trend of the times and have been eliminated by the market, brands such as Apple have led the trend of smart phones in the world today. Nowadays, with the change of technology, the functions of smart phones are becoming more and more powerful and more diversified. At the same time, people's demand for mobile phone functions is also increasing. Sellers have technology, buyers have demand, and naturally many functions have emerged. Today, I will tell you about wireless charging. Why are mobile phones now charging wirelessly? What is the principle? After reading long knowledge

There are four such current transmission methods. In this article, we will talk about various charging methods.

The first type: electromagnetic induction wireless charging, this way of charging is to use an inductive magnetic flux generated between the wireless charging board and the magnet induced on the mobile phone to convert this magnetic force into a power for current transmission. The circuit structure required by this type of charging method is relatively simple, and the cost is not too high, but there is also a disadvantage in the charging method, that is, the transmission distance is too short, if the position of the mobile phone is not placed. If you put it in place, then it is very likely that it will not be charged or the charging speed will be extremely slow.

(The phone in the picture is iPhone xr from  https://www.apple.com/iphone/)

The second type: magnetic field resonance charging, the principle of this kind of charging is that the two resonators need to generate a magnetic field resonance. Like the first one, it also turns it into electric power by magnetic force to perform a charging. The two parties that need to be connected have a sense of vibration at the same frequency, then they can be charged, and are suitable for long-distance transmission, but there are still disadvantages, that is, the efficiency of charging will be relatively low, and this type of charging is currently available. The method is still under study, and it is estimated that this shortcoming will be improved before it can appear on the market.

The third type: radio wave charging, this kind of charging method is to configure a device for transmitting radio waves on the power supply side. Of course, with a transmitting device, it is necessary to have an accepted device to a DC The voltage output and the input mode are charged. Although the current transfer speed is fast, the stability and safety are low, and the cost of research and development is also high.

The fourth type: electric field coupled wireless charging, this kind of charging method is to generate the current transmission by asymmetric dipoles in a vertical manner. The charging mode has a high conversion rate and the positions of the two are high. It can also be fixed, but there is a big disadvantage, that is, the equipment needs to be larger and the power is extremely small.

(The phone in the picture is iPhone xr from  https://www.apple.com/iphone/)

These four charging methods are the most mature in the first way. Now the first method of wireless charging used in our mobile phones is widely used, but it still needs to be improved. In addition to the above mentioned shortcomings, in the use of such When the wireless charger is used, the phone is very easy to be hot, which is very unsatisfactory. So now many users get the charger after it is nothing but fresh, after the first time it is not easy to use, after the charging time I still choose the data line charging, and give up this high-tech charging method.

Although the current popular wireless charging technology is still not mature, there are a variety of wireless chargers available on the market, which have their own various characteristics as a selling point (such as color, shape, charging voltage and current, etc.). Faced with so many mixed wireless chargers, as consumers want to buy a wireless charger, it is very headache, it is simply impossible to start, do not know which one to buy. When you don't know how to choose, I recommend several wireless chargers for MSL-force here. They are high quality and guaranteed cost-effective products. Because they have different needs, there are different styles of choice.

NO.1  Wireless Charging Pad Fast Charge Samsung , QI Certified Phone , Samsung Galaxy S8

http://www.mslforces.com/unique-design/wireless-charging-pad-fast-charge-samsung-qi.html

wireless charging pad fast charge samsung , QI Certified Phone . That is for Samsung Galaxy S8 And Iphone X

Universally compatible with QI enabled Phone , Including the Samsung Galaxy S8 and Iphone 8 and Iphone X 

Fast charging wirelessly : Experience fast wireless charging speed with a Galaxy S9 , Note 9 or other Samsung Smartphones, Up to 9W fast charge wireless charging output .

Flat Mode fast charging :                                                                     Stand mode fast charging:

Specifications:

Feature:

It design for Smart Phone which support wireless charge . Ideal for Cooperation Gift , Business Gift .

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NO.2  Unique Design Wireless Charging Pad , Foldable Wireless Charging Pad

http://www.mslforces.com/unique-design/unique-design-wireless-charging-pad-foldable.html

Unique design Foldable wireless quick charging pad ,  Stand or Flat charging mode support

Universally compatible with QI enabled Phone , Including the Samsung Galaxy S8 , S9 and Iphone 8 and Iphone X 

Fast charging wirelessly : Experience fast wireless charging speed with a Galaxy S9 , Note 9 or other Samsung Smartphones, Up to 9W fast charge wireless charging output .

Specifications:

More Pictures:

NO.3  QI Certified Fast Charge Wireless Charger Pad ,Unique Design Wireless Charging Pad

http://www.mslforces.com/unique-design/qi-certified-fast-charge-wireless-charger-pad.html

Unique design power banks, Foldable wireless quick 4.0 charge power banks , External Battery Pack ,

Universally compatible with QI enabled Phone , Including the Samsung Galaxy S8 , S9 and Iphone 8 and Iphone X 

Fast charging wirelessly : Experience fast wireless charging speed with a Galaxy S9 , Note 9 or other Samsung Smartphones, Up to 9W fast charge wireless charging output .

Specifications:

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