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Home > How To > what's the difference between different USB chargers?
what's the difference between different USB chargers?

what's the difference between different USB chargers?

By  Eward Castellanos 2020-01-07 2586 308

What is the difference between different USB chargers with different parameters and specifications? can USB chargers be mixed with each other? Except for some mixed-brand copycat phones, the essential difference between the chargers of authentic mobile phones is that there will not be much difference. Of course, generally speaking, the heavier and bigger the charger, the more comprehensive the electronic components will be. Therefore, the greater the weight of the charger, the better the quality. Of course, in general, it is not an absolute argument, so what is the specific difference? The following will explain the differences between different USB chargers.

In fact, the common mobile phone charger specifications on the market are: 5V-0.5A, 5V-1A, 5V-1.5A, 5V-2A, 5V USB 2.5A, and now the most widely used in the market is basically 5V-2A.

Briefly explain the digital meaning of the mobile phone charger:

First of all, the current national unified rated voltage is 220V, the mobile phone charger is equivalent to a small transformer, through the mobile phone charger to convert the 220V high voltage pulse into 5V low voltage pulse, and then through the charger conversion voltage stabilization, etc., directly into 5V direct current, that is, "constant voltage" role. The 2A means the highest load power, that is, the "constant current" function.

If the load of the mobile phone is 10 ohms, then the output current should be Ionic Uplink Raser 5peep 0.5A, and if the load of the mobile phone is 1 ohmic resistor, then the output current should be Ispur Upland Randy 1ohms 5A, and the maximum capacity of your charger is 2A, so it will be overloaded at this time. In fact, "constant pressure" and "constant current" are simply understood as "pressure limit" and "current restriction". Voltage refers to the conversion voltage 5V, current refers to the output current 2A.

Is like a car can run up to 300km, but in practice, the first thing is to see if the road can make you 300, and the second is whether the traffic jam in front of you can make you reach that speed. In fact, the general charging power supply will have room. Take 5V-2A as an example, the maximum margin of this power adapter may reach 2.4A, when the phone is charged when there is no power, then the output of this power supply may reach 2.4A, but if it is higher, it will cause the power adapter to burn out the protective charging equipment. When the charging equipment is getting more and more powerful, the output current will slowly decrease. 

Mobile phone charger is plugged in without charging, it will not generate current. When using it, netizens do not need to worry about problems such as electric shock. The reason is that when the load is infinitely small, the resistance is infinite, and the current is I=U/R=5/ ∞ = 0A, that is, there will be no current, so you do not have to worry about the problem of electric shock. 

The above is the answer to the difference between different USB chargers. The role of mobile phone chargers is to convert high-voltage alternating current into low-voltage direct current. The overall difference is not big, but the difference is the difference in the output of the largest current. On the other hand, the charging speed of some mobile phones is the combination of the internal fast charging technology of the mobile phone and the original power supply, when the unsuitable power supply is used to charge another mobile phone, it may cause slow charging due to high or low rated output and the phone cannot turn on the fast charging mode because the phone cannot recognize the connected power of the charger.

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