What is the difference between flash charging and fast charging, and what is the difference between

What is the difference between fast charging and flash charging? I've read the long knowledge.

1. Flash charging is to increase the charging current, and fast charging is to increase the charging voltage, but the essence of both is to increase the charging power, and the speed of the two charging methods is not much different. Flash charging is low-voltage fast charging, and fast charging is high-voltage fast charging.

2. Fast charging and flash charging are both technologies to speed up the charging speed of the battery, but the technical principles are slightly different. Fast charging is nothing more than increasing the power of charging. In the case of a certain battery capacity, increasing the power can reduce the charging time, and the higher the power, the shorter the charging time.

The flash charging temperature is lower, and the fast charging temperature is higher.

3. The charging speed is different, and the flash charge is faster. Another important difference is that flash charging is safer than fast charging when charging.

Nowadays, fast charging is basically divided into two categories:

1. Low-voltage fast charging: stands for OPPPO VOOC flash charging.

2. High-voltage fast charging: all of them are Qualcomm's universal free solutions, representing moto turbo fast charging, vivo dual-engine flash charging, and basic Qualcomm chips also support fast charging.

Low voltage and high current mode: In the case of a certain voltage, increase the current, you can use parallel circuits to shunt, under constant voltage, the smaller the pressure shared by each circuit after parallel shunt, and the same treatment is carried out in the mobile phone, the pressure on each circuit will be smaller.

High voltage constant current mode: The charging process of a general mobile phone is to first reduce the 220V voltage to the 5V charger voltage, and then the 5V charger voltage to the battery voltage. During the whole charging process, if the voltage is increased, heat energy is generated, so when charging, the charger will heat up, and the mobile phone will also heat up.

And the greater the power consumption, the greater the damage to the battery.

VOOC flash charging technology belongs to low-voltage and high-current fast charging, and other fast charging belongs to high-voltage and low-current fast charging. High-voltage charging, the temperature of the mobile phone is relatively high, and relatively speaking, the safety of VOOC flash charging is very high.

There is no fundamental difference, fast charging and flash charging are both by increasing the output current or voltage of the charger to achieve the purpose of fast charging, for example, the general mobile phone charger is 5V1A, add current to 5V2A, it can be set as fast charging.

Fast charging is flash charging, and the two are just different words, but there is no difference in substance.

Flash charging generally refers to VOOC flash charging, which is based on the mode of low voltage and high current, under the premise of fixed power, by enhancing the voltage or current to shorten the charging time.

At the "2017 Fast Charging Technical Standards and Application Seminar of the Taier Forum", the interface specifications, scheme division and specifications of the fast charging output equipment (charging head) and the fast charging input equipment (mobile phone) were standardized.

The meeting clearly stipulated that China's definition of "fast charging" has the following two points: 60% of the power is charged within 30 minutes of charging.

The current entering the phone within 30 minutes after the start of charging is not less than 3A.

Only charging protocols that meet the above conditions can be called fast charging in China.

3.When charging, the heating degree of the mobile phone is different, the flash charging temperature is lower, and the fast charging temperature is higher; 4.The safety of the mobile phone is not the same when charging, and flash charging is safer.

Hello, this is flash charging and fast charging.

Question, so it's better to recommend flash charging.

Thank you for the question.

What is the difference between flash charging and fast charging? Dear, hello, there is not much difference between flash charging and fast charging, the main differences are as follows: 1. Charging speed:

Flash charging is faster than fast charging. 2. Charging voltage: flash charging is low-voltage fast charging, and fast charging is high-voltage fast charging.

3. Degree of heating Li Qiaohong: The flash charging temperature is low, and the fast charging temperature is high. Fourth, safety performance:

Flash charging is safer than fast charging. Flash charging is actually a fast charging standard VOOC developed by OPPP, and many new models of OPPP currently use SuperVOOC flash charging technology. However, although flash charging improves the charging speed, the OPPP flash charger is not compatible with other brands of chargers, so you need to be equipped with a special charger when charging the mobile phone.

Fast charging is actually a QC standard developed by Qualcomm, which is different from flash charging, fast charging uses fast charging technology to increase voltage and reduce current. The current third-generation QC fast charging technology has many improvements on the basis of the previous generation, when there is now the latest technology, but there are very few products that use this charging technology. It is understood that the latest technology charging speed has increased by 20% on the basis of the original speed, and while improving the charging speed, it also pays attention to protecting charging equipment such as rechargeable batteries, wires and connectors, but from the data alone, fast charging has no obvious advantages over flash charging.

The difference between flash charging and fast charging:

1. Flashing is not charging to increase the charging current, and fast charging is to increase the charging voltage, but the essence of both is to increase the charging power, and the speed of the two charging methods is not much different. Flash charging is low-voltage fast charging, and fast charging is high-voltage fast charging.

2. Fast charging and flash charging are both technologies to speed up the charging speed of the battery, but the principle of technical hunger is slightly different. Fast charging is nothing more than increasing the power of charging. in battery capacity.

In some cases, increasing the power can reduce the charging time, and the higher the power, the shorter the charging time. The flash charging temperature is lower, and the fast charging temperature is higher.

3. The charging speed is different, and the flash charge is faster. The most important difference is that flash charging is safer than fast charging when charging.

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The principle of flash charging:

There are two general directions to increase the charging speed: one is to increase the voltage, and the other is to increase the current. Increasing the voltage increases the amount of heat generated during charging.

Accelerates battery aging and may pose a safety hazard.

So the actual effect is not good. In contrast, increasing the current is more realistic. The charging process is to input a charge from a high-voltage charger to a low-voltage battery. In principle, it is the same as flowing water from a high pool to a low pool.

Flashcharge is flash charge.

FlashCharge refers to the fast charging technology adopted by vivo, which is currently mainly used in IQO0 mobile phones and vivo mobile phones. At present, there are two main types of charging power for FlashCharge; On the iQOO phone, vivo has also launched SuperFlashCharge with a charging power of 44W.

This is a high-power fast charging technology used in vivo brand mobile phones, like other fast charging technologies, through higher charging power to achieve a shorter charging time, because the chip side is an exclusive protocol, so it cannot be used in other brands or charging heads and mobile phones that do not support the fast charging technology.

The former fast charging technology mainly has two charging powers: 5V and 33W of 11V 3A; In addition to FlashCharge, there is also a higher-powered SuperFlashCharge on the IQO0 phone, with a maximum charging power of 44W.

The difference between fast charging and flash charging:

1. Fast charging: increase the voltage and reduce the current.

One of the biggest features of fast charging is to increase the voltage and reduce the current. The low current makes it extremely compatible, and there are no too high requirements for equipment and data, and the threshold for use is very low.

However, it should be noted that fast charging will increase the voltage, which means that higher heat will be generated when using fast charging, resulting in serious heating of the mobile phone, which will affect the life of the battery to a certain extent.

2. Flash charge: reduce the voltage and increase the current.

In contrast to fast charging, flash charging is to reduce the voltage and increase the current. This means charging with flash charging. The heat generated is mainly concentrated on the charging head, which will cause less damage to mobile phones and other devices, and has a good protective effect on the battery.

Of course, due to the relatively large current generated, the requirements for the data line will be very high.

If you use a general low-quality data cable, there are certain security risks. Generally speaking, the cost of a data cable with flash charging is high, and it is also a little higher. At the same time, the technical threshold of flash charging is also very high, he needs to use a special charger, and there will be a certain degree of mutual exclusion between different flash charging technologies, resulting in the non-dismantling of the core key capacity between devices.

Flash charging is relatively fast, and the current passing through is relatively large.

The difference between fast charging and flash charging is:

The charging speed is not the same, flash charging faster.

The voltage at the time of charging is not the sameFlash charging is low-voltage fast charging, and fast charging is high-voltage fast charging.

The degree of heating of the mobile phone is not the same when chargingThe flash charging temperature is lower, and the fast charging temperature is higher.

The safety of the phone is not the same when charging, flash charging is safer.

At present, there are two ways to solve the battery life, one is to directly use a large-capacity battery, and the other is to use fast charging technology. The charger needs to meet the sufficient output current and output voltage.