Month: December 2018

When the mobile phone is charging while playing, does the power consumed come from the battery or the charger?

Let’s first take a look at the battery usage when charging. When the phone is charging, the current from the charger will be divided into two parts. Most of the battery will be supplied to help the battery to be stored. The other part will be supplied to the phone’s motherboard. Meet the needs of the phone to do other work. If it is used while charging, the current supplied to the main board of the mobile phone will increase, and accordingly, the current supplied to the battery will be reduced.

 

Since the battery can only be in the one-way working state, either charging or discharging, it is impossible to output power while inputting the power. At this time, it depends on the power of the charger.

If the power of the charger is very high, it can bring a huge current, so if the mobile phone is used while charging, the battery will always be stored, that is, the power is always increasing; but if the power of the charger is very low, or The quality of the data cable is not good, and the power consumption of the mobile phone is very large, so the power from the charger will be in short supply. How to do it? At this time, it is necessary to use the battery storage power.

 

Therefore, when the power of the charger is high enough, the mobile phone can still be charged when it is used, but the charging time will be longer; when the power of the charger is not high, the charger can not only charge the mobile phone but also need to be powered by the battery. The mobile phone will be charged less and less.

This latter situation is very common in the past, but with the popularity of fast charging, the power of the charger is very high, so the current mobile phone can basically meet the charging while using.

 

However, because the charger charges the battery, in the process of converting electrical energy into chemical energy storage, heat is generated due to loss; at the same time, the mobile phone generates heat when it is operated under high load, so the mobile phone will appear hot.

So the conclusion is that the phone is used while charging, and the power consumed comes from the charger. Unless your charger has low power or poor data quality, you will need the battery to supply power.

 

In addition, although the mobile phone can be fully charged while using it, the heat generated in this process will damage the battery and reduce the battery life; there are also uncertain risk factors such as an explosion.

Therefore, it is recommended that everyone use the mobile phone reasonably. Not only does the mobile phone need to replenish energy, but the person himself needs to rest. The mobile phone will also produce health problems such as cervical spondylosis and myopia.

Huawei plans to develop “super charger”

According to the foreign media “GSM Arena” report, Huawei, a Chinese smartphone manufacturer, plans to introduce a “supercharger” that can support the rapid charging of large-capacity batteries in the near future. According to official development documents, Huawei’s charger will provide 40W fast charge and can fully charge 4200 mAh battery in one hour.

Huawei’s new smartphone Mate 20 Pro released, its ultra-large capacity battery, it takes a while to fully charge through the included charger, which has disadvantages for users; the new 40W fast charge can make Mate 20 Pro users charge their batteries in a very short time.
However, according to the outflow data, this 40W supercharger currently only supports Huawei Mate 20 Pro, and other mobile phones can only provide standard QC 3.0 fast charge (the premise mobile phone needs support). Huawei expects to launch the charger in 2019. The foreign media also believes that this will coincide with the P30 Pro handset that Huawei plans to launch next year, while the lower-profile P30 may use a 20W fast charger.

What is the fast charge mode？

Mobile phone manufacturers are limited by the size of their mobile phones and their battery capacity is limited, so they began to turn their attention to fast charging. Fast charging is a technology that increases the charging power of mobile phones within a reasonable range and aims to quickly replenish most of the power for mobile phones. The charging power is equal to the current multiplied by the voltage. There are currently two solutions that can increase the charging power, high voltage, small current and low voltage and high current.

For example, the process of charging a mobile phone is like a process of dripping a mineral water bottle with a hole in the bottle. To speed up, first squeeze the water bottle to make the water flow faster, which is the high voltage and small current. The second is to tie another hole. At the same time, the water flow doubles. This is the low voltage and high current.

High voltage and small current

In 2013, Qualcomm introduced the Quick Charge 1.0 standard to increase the charging efficiency by increasing the input current, allowing the handset equipped with the Snapdragon 600 processor to support 5V/2A”/charging. However, due to the limitations of the micro USB interface, the input current should not be too large, so Quick Charge 2.0/3.0 can increase the power by increasing the supply voltage, which can achieve 9V/2A. In 2016, Qualcomm introduced the Quick Charge 4.0 standard, which is said to support the optimal voltage intelligent negotiation algorithm to provide the most suitable charging voltage for the battery. In addition to Qualcomm, MediaTek’s Pump Express Plus 1.0/2.0, Samsung’s Fast Charge, and Meizu’s charge 3.0 also use this high-voltage, low-current solution.

Low voltage and high current

Remember to charge for five minutes and talk for two hours? In 2014, OPPO introduced VOOC flash charging technology with a charging power of 22W. VOOC flash charging is a typical low-voltage and high-current solution, but as mentioned earlier, the micro USB interface will limit the current, so OPPO has customized the charger and charging cable, and even the internal circuit of the mobile phone has been modified to support 5V/4A. At present, OPPO’s dual-cell SuperVOOC super flash charging has a maximum charging power of nearly 50W and can charge 40% in 10 minutes. Also using this solution is Huawei SuperCharge Super Fast Charge, plus DASH Flash Charger.

Most Android phones that support fast charge will be equipped with a fast charge charger. There are exceptions, of course, so don’t ignore the accessories when buying the product. Be sure to look at the voltage and current requirements above.

High-voltage small current and low-voltage high-current are all in order to solve the charging problem, and there are differences due to different solutions to the micro USB problem. But now it is progressing, becoming smarter and safer, and micro USB is now undergoing changes, and mobile phone charging will become more and more perfect in the future. But now, you can turn on the “power saving mode” or choose the right fast charge charger to speed up.

Lift Camera

The reason why the lift camera appears is also a result of the full screen, looking for a “home” for the “nowhere to put” front camera.

It must be said that the design of the lift camera is sufficiently creative and practical, and it has achieved satisfactory results in terms of lifting speed, photographing and unlocking. The process is accompanied by sound effects and is very sci-fi.

Although there are many full-screen formats at present, I believe there will still be a mobile camera phone next year.

Super Wide-Angle Photo

Ultra-wide angle is also a technology that appeared on mobile phones this year. Although it is not a new technology, after adding it to mobile phones, the improvement of the camera experience is very obvious.

Vivo’s X23 released this year is mainly for super wide-angle photography. The rear dual camera is 12 million main and 13 million super wide-angle lenses, and the wide-angle reaches 125°, which can make more pictures when taking pictures.

Super Flash Charge

Charging is a very torturous thing, and 2/3 hours is really tormenting. Sometimes there are some emergencies, the phone has no power to go out, not only does not have a sense of security, and nothing can be done, it is really uncomfortable, so fast charging becomes a technology that is getting more and more fire.

After two years of release, OPPO finally equipped SuperVOOC Super Flash Charger on OPPO Find X and R17 Pro this year. The charging power is up to 50W, which can fully charge the mobile phone in half an hour, greatly reducing the charging waiting time and improving efficiency. In addition, Huawei also launched a 40W super fast charge.

Wireless Reverse Charging

Wireless charging is not a new technology, but it has been a domestic mobile phone or a recent year, and it has not evenly spread. Huawei has shown a more powerful technology on the Mate 20 Pro: wireless reverse charging.

Huawei Mate 20 Pro wireless charging function, after the phone is turned on, it is equivalent to a wireless charger, and then the device that supports wireless charging can be charged.

Digging Screen

In the last month of 2018, the full-screen form re-emerged, and the hole-cutting screen was born. First, after Samsung, it was Huawei. If it was completely unpredictable, it came to the next form.

Both Samsung and Huawei have screen openings in the upper left corner, but the technology is different. Samsung uses the through hole through hole solution, and Huawei uses the blind hole blind hole solution. The difference between the two is the size of the camera’s “hole”. Relatively speaking, Samsung’s opening is larger and Huawei is smaller.

Water Drop Screen

Full screen has become the trend and trend of the future, and all mobile phone manufacturers are also working hard to achieve a true 100% full screen. In order to ensure the front camera and sensor, Liu Haiping has to appear, but for many users, such a design is difficult to accept.
Subsequently, the appearance of the water drop screen saved the situation, leaving only a small area similar to water droplets in the middle of the screen, only the front camera.

Compared with Liu Haiping, the water drop screen has advantages in terms of both aesthetics and screen ratio, and it is a good comprehensive screen unlocking solution.

Holding A Super Night Scene

Huawei’s P20 series is equipped with a handheld super night scene, supports 3-6s long exposure, with AI smart anti-shake and six-axis video anti-shake, no need for a tripod, you can achieve excellent night scenes in your hand.

Subsequently, this technology was also followed up by Chinese mobile phone manufacturers and joined the flagship mobile phone of their own, and gradually became popular.