The standard voltage of USB is 5V, and the early chargers all output with a single voltage, but different mobile phone chargers will have different output currents, such as 5V 1A, 5V2A and so on. This current refers to the maximum current that the charger can output. The voltage input to the mobile phone must be controlled by the power management chip before it finally reaches the battery terminal to charge the battery. So the final charging current is determined by the charging management chip. When the mobile phone is equipped with a charger, the designed charging current will also be considered. If the original charger is 2A, charging with 1A charger will be slower. On the other hand, if the original charger is 1A, will the current be 2A when charging with a 2A charger? The answer is no, because the final charging current is determined by the power management chip. And sometimes charging with 2A charger is not as fast as charging with 1A charger. Why? This needs to mention another problem, that is, protocol identification.
Protocol identification is simply understood as handshake, that is, when the mobile phone is plugged into the charger, the mobile phone needs to know whether the appropriate charger is plugged in, and it will work according to the normal charging current. If not, the charging current will be reduced or even not charged. So how does protocol identification work?
The standard USB interface always outputs four wires, besides two power supplies, there are two data wires D+D-. Simple protocol identification is performed by detecting the voltages on these two lines. For example, the Apple charger commonly used in the above picture is input to two data pins through the divided voltage of four resistors, and the chip inside the mobile phone detects the voltage of the data pin. If it is within the normal agreed range, it is considered that the charger is standard and charged at normal current. In addition, there are many combinations of resistance voltage division, which are used to distinguish different mobile phones or different charging current standards. This is why the charger with large output current is not as fast as the charger with small output current.
With the increase of mobile phone battery capacity, the requirement for battery charging speed has also increased. To improve the charging speed of the battery, simply put, it is to increase the charging current. However, with the increase of charging current, the requirements for charging wires and interfaces should also be improved, otherwise there will be problems due to the heating of internal charging wires and interfaces. In the early days, there was a 5V4A fast charging charger. In order to solve the problem of interface heating, it uses a customized interface instead of a conventional USB interface, and the internal contact area is improved. However, with the voltage standard of 5V, the current cannot be increased indefinitely, which leads to more charging voltage standards, such as 9V, 12V and so on. By increasing the output voltage of the charger, the current of the charging line and interface can be reduced. After the voltage is input into the mobile phone, the charging management chip steps down to control the battery charging. In this way, the charging current of the battery increases, and the input current is reduced by boosting the voltage.
Because the output voltage of the charger has been improved, the interface standard is still USB. In order to avoid the damage caused by the standard USB voltage equipment connected to the charger, the charger supporting fast charging supports multi-channel high-voltage output, but before shaking hands, it outputs the standard voltage of 5V, which means it can be used as an ordinary 5V charger. When the charger is connected to the mobile phone, the mobile phone and the charger still shake hands through the data pin to judge whether the charger supports the fast charging protocol, and if so, output it according to the voltage standard of the current protocol.
So different mobile phone chargers can be mixed, but they may not reach the original charging speed. In addition, it should be noted that although different mobile phone chargers can be mixed, you must choose the charger that comes with your mobile phone or is produced by a regular manufacturer. Poor quality charger may affect the normal use of mobile phone due to output ripple, and may also cause certain security problems.
Hello, I'm a 600-degree lens, and I'm glad to answer it for you.
Whether mobile phone chargers can be mixed or not, the same voltage can also be used. The specific reason is this.
There are several protocols for mobile phone charging, such as BC, QC, PD, FCP, SCP, PE, VOOC and so on. In the case of protocol charging, the charger will shake hands with the mobile phone during charging, and then turn on the relevant voltage and charging current. So if it is protocol charging, there is no problem with the hybrid charging head. As long as the charger has the relevant protocol type. For example, the mix of PD charger and QC charger. But PD can't mix with QC. Because the signal mode is different.
If it is not protocol charging, then pay attention to the charging voltage, and the current can be ignored. Because the mobile phone has a control chip, the specific size of the current is controlled by the chip. For example, Apple 6 was charged with 5V 1A and 5V 100A, but only got 1A.. The charging voltage of mobile phones including function machines on the market is basically 5V, so don't worry about burning out. However, the maximum current of some function machine chargers is only a few hundred milliamps, so the charging will be very slow or even impossible, which is similar to the charging speed of your computer USB2.0 port.
One thing to pay attention to in the mixed charger is the cottage product. Because of the low cost, the ripple control of cottage products is not as good as that of original products or brands. It will cause unstable charging of the mobile phone, screen jumping, serious fever during charging, and even fire. Therefore, it is recommended not to use the cottage charger, and try to use the original charger.
Finally, if it is a protocol charger, can it charge non-protocol devices? Yes, basically all protocols are 5V, so when no protocol signal is detected, the output is 5V2A.
Thank you for reading, I hope I can help you.
Can mobile phone chargers be mixed? The answer is yes, chargers can be mixed, but this mixing should be measured according to the charging protocol. The following is a detailed explanation for everyone.
Nowadays, there are hardly any new mobile phones that only support 5V/2A charging, and they are basically equipped with the lowest 18W fast charging. At present, the mainstream fast charging schemes in the market mainly include QC high-voltage low-current protocol fast charging in Qualcomm, VOOC low-voltage high-current fast charging in OPPO, PD fast charging in Huawei, SCP and FCP fast charging.
You may have some questions. The output voltage of these QC protocol fast charging chargers can reach 9V/11v. Can my mobile phone be charged with a 5V/2A charger as standard? Not bad, because these fast charging chargers all have different charging power outputs, but they all have the same thing, that is, they all have a 5V/2A output (some have 5V/4.5A output).
For example, Huawei's 40W fast charging charger supports three different outputs. Outputs: 5V/2A, 9V/2A, 10V/4A. Although it is a fast charging charger, it still has an output of 5V/2A.
When we charge this mobile phone with a fast charger of QC protocol and a standard 5V/2A charger, they can't shake hands successfully. What does this mean? Because there is a chip in the fast charging charger and a power management chip in the mobile phone that supports fast charging, there is a built-in protocol.
Only when they reach an agreement (that is, shake hands successfully) can they output 9V/2A, otherwise they can only output 5V/2A. And we use QC fast charging head and standard 5V/2A charger to charge the mobile phone. They can't reach a fast charge agreement, so forget it.
The output of the target is 5V/4.5A, so its output to the mobile phone is only 5V/2A, because it is controlled by the internal power management chip. For some mobile phones, the current may not be 2A, depending on the setting of the power management chip inside the mobile phone.
For example, we all know that Apple comes standard with the ancestral 5V/ 1A charger. Can we use this QC fast charger or other fast chargers to charge? The answer is yes, there may be a misunderstanding here.
Misunderstanding:
Many people think that it will explode if I use this fast charger to charge an Apple mobile phone with a standard 5V/ 1A charger.
Actually, it's not like this. The fast charging chargers mentioned above all have 5V/2A output. Someone should say it again. It supports1a. If you charge with 2A, there must be something wrong.
In fact, the real current depends on the power management chip of the mobile phone. The charger does not count, and only the current allowed by the power management chip can be used. For example, when charging with a 5V/ 10A charger, the mobile phone power management chip can only be connected to set 10A.
Original chargers can be mixed, but there is no need to mix them. For some cottage chargers, it is best not to mix them, because its output is unstable and prone to problems.
As long as it is a standard 5V charging or a 5V output, it can be mixed, but the charging speed will drop a lot, just a big horse-drawn car.
1, unplug the charger in time after it is fully charged, and don't always plug it into the socket.
2, the use of original genuine, don't covet cheap to buy some cottage charger.
3. During charging, do not cover the surface of the charger with sundries, which will affect its heat dissipation.
4, high temperature environment, try not to use. At the same time, in the process of charging at night, the charger keeps a distance of more than one meter from the human head.
There are rectifier circuits, filter circuits, oscillating circuits, high-frequency transformers, electrolytic capacitors, resistors, inductors and various control chips in the mobile phone charger.
As long as the mobile phone charger is plugged into the socket, there will be current inside, but the current is relatively small. Generally speaking, the no-load power of regular big-name chargers is within 0.05W, and the miscellaneous brands may be higher. As long as it is plugged into the socket, current will flow through the charger.
This will accelerate the aging of internal components and shorten the life of the charger. In severe cases, it may even explode due to long-term electrification. Last month, the neighbor's charger exploded because the mobile phone charger was plugged into the socket for a long time. )
From the above introduction, we can know whether chargers can be mixed, but I still advise you not to mix them unless you have to. Because the original is the best, it can also realize fast charging.
At the same time, you should also pay attention to the use of chargers, unplug the chargers from the sockets in time, use original and genuine products, and don't buy shanzhai chargers cheaply.
At present, most chargers start with 5V/ 1A and 5V/2A, but high-voltage fast charging and low-voltage fast charging have different fast charging protocols. Can these chargers be used universally? Let's analyze it below.
If we use a 9V/2A charger, and the rated power of the charger is 9V× 2A = 18W, then if we use it to charge a 5V/ 1A or 5V/2A matching mobile phone, it can be charged in theory, but the charging speed will not be accelerated and the impact will not be great.
But on the other hand, using low-power chargers such as 5V/ 1A or 5V/2A to charge higher-power mobile phones such as 9V/2A, under this overload work, not only the charging speed is very slow, but also the battery will heat up, which will accelerate the aging of the battery and shorten its service life, which will have serious security risks, so it is recommended that you do not mix chargers casually!
Here is a very simple example: a person who can lift 50 kilograms can also lift objects below 50 kilograms, but a person who can only lift 20 kilograms is required to lift 50 kilograms. Such a load will harm his health.
You still have different views and opinions. Please leave a message in the comments section to give you a better opinion.
The reliable answer is that mobile phone chargers can be mixed. For mobile phones that support fast charging, it may not be possible to activate the fast charging function through the hybrid charger. After all, the fast charging of some mobile phones is a private protocol.
For mobile phone charging, we must first correct a misunderstanding. Using a charger with mismatched voltage or current to charge the mobile phone will not harm the battery of the mobile phone. For example, charging an Apple mobile phone with a charger that can support up to 1 1V/4A is harmless to the battery, because the power management chip will match the appropriate charging voltage and current.
In the mobile phone, the power management chip is not only responsible for monitoring the health of the mobile phone battery, but also for coordinating the charging power of the charger. So even a 65W charger can charge any smart phone, because the power management chip will coordinate an appropriate power.
From a technical point of view, many chargers now support a variety of charging power sources. Take the author's iQOO 3 as an example. It is a 55W charger with the maximum charging power of 1 1V/5A. However, this charging head also supports 5V/ 1A or 9V/2A mainstream charging power supply. Use iQOO 3' s 55W charger to charge iPhone 1 1, and the charging power is negotiated as 5V/1a..
Some third-party brands of 65W chargers support PD fast charging protocol. Charging iPhone 1 1 can activate 18W fast charging. Therefore, mobile phone chargers can be mixed, so don't worry.
Different models of mobile phone chargers can be mixed! Don't worry about damaging your mobile phone. At this point, the manufacturer must have considered it. After all, many mobile phone chargers are similar in appearance, and the interfaces are the same (all USB interfaces), so it is easy to use them wrongly.
Although many mobile phone chargers have fast charging function, and the mobile phone chargers are marked with several output voltages, such as 5V, 9V, 12V, many people may worry that mismatched chargers will output higher voltages, such as 9V or 12V, which will burn out the mobile phone! Although many mobile phone chargers have several voltage output specifications, the higher voltage belongs to the protocol output, which is used to provide fast charging function. When the protocol does not match or there is no protocol, the default output of the mobile phone charger is 5V.
1, mobile phone chargers can be mixed, and the mixed mobile phone chargers output 5v by default;
2. The hybrid mobile phone charger cannot support the fast charging function. Even if you use a mobile phone charger with fast charging function, you can't charge quickly because of protocol mismatch. The default output voltage is 5V.
3. There is no fast charging function when the mobile phone chargers are mixed, and the charging speed is slow. It is best to choose a charger with a large output current of 5V, generally above 5V/2A. If you choose 5V/0.5A or 5V/ 1A charger, the charging speed will be slower. You don't have to worry about the damage of the charger output current to the mobile phone. For example, the original mobile phone charger is 5V2A, which can be charged with 5V3A mobile phone charger. The current marked on the charger refers to the maximum output current it can bear, and the actual output current is related to the connected load. The output current of the load connected to 1A is 1A, and the output current of the load connected to 2A is 2A.
Hello, I'm glad to answer your question.
My answer is that it is best not to mix them.
① Different mobile phones have different charging powers. Some mobile phones support 18W fast charging, while others only support 5W charging. If you use 18W charger to charge a mobile phone that only supports 5W charging, the calorific value of the mobile phone will increase, and there will be unpredictable dangers (explosion, fire, etc. ), which is why mobile phone manufacturers suggest that we use the original charger.
② Different mobile phones have different charging protocols. For example, OPPO mobile phone and Huawei mobile phone, OPPO mobile phone is the exclusive VOOC flash charging protocol, and Huawei is the exclusive Huawei fast charging. If you charge Huawei's 40-watt mobile phone with OPPO's 65-watt charger, the charging power will not reach 40 watts, which may also cause damage to the mobile phone battery.
So I strongly suggest that the landlord mix the mobile phone chargers. This is my answer, I hope I can help you and wish you a happy life!
This depends on your own wishes, as long as the interface is the same, you can use it. If the heartache battery can't stand it, it's best not to use it. It is nothing more than a change in the length of charging time, and other influences are not great, provided that you don't use the cottage.
As long as this charger matches this mobile phone. It is universal.
In principle, high-current chargers can be compatible with low-current chargers.
Some can be mixed, but it is not recommended that you mix them, which is particularly harmful to the battery.
For example, Huawei has a mobile phone with a fast charge of 40w, and some only support 22w, which will definitely be harmful to the mobile phone battery, otherwise it will be unfair to enterprises that have invested so much R&D expenses. A larger charger plug can support ultra-high fast charging.
There are also some charging data cables with protection programs, which are not recognized by other mobile phone chargers, or are intermittent, which is very harmful to the battery. It is not recommended to mix them.