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28

2020-05

How Can I Make The Most Of Wireless Charging?

Do you still feel your smartphone charges slowly even with a fast charge device? Don’t worry, your wireless charger probably still supports fast charge, but there may be a few reasons why it may not be reaching its full potential. Always make sure your smartphone is updated, as this could include updates linked to fast charging.It’s worth checking if your smartphone supports fast charge before you buy wireless charging accessories. For example, if your smartphone does not support fast charge, then you do not necessarily need to purchase a 10W wireless charger, as your smartphone will only be able to withdraw a 5W output. Your wireless charger may also be limited by the wall output. The majority of wireless chargers simply come with a USB cable plugin, as most people already have a USB-mains adapter that came with their smartphone/other devices. However, if you were to plug the USB end into Apple’s standard iPhone wall adapter, or the wall adapter which comes with the Galaxy S8, these both only have a maximum output of 5W.This means your charger will only take the 5W of power that is available. Therefore, your iPhone X/Galaxy S8, for example, will not be able to fast charge. You would need to get yourself a larger mains adapter so it can access the power it needs to support fast charge for your smartphone. For instance, if you also have an iPad/Galaxy Tablet, these come with a 12W or 10W mains adapter respectively, which makes them ideal mains adapters for your wireless charger to support fast charge. Finally, always make sure your charger is Qi certified. Qi is the industry wireless charging standard across most major devices. A Qi certified device means these devices have been put through their paces in terms of testing to ensure the best possible outcome for the end user by WPC who are the governing body of all things wireless power. You can easily spot a Qi certified product by the Qi logo. This is allowed only on certified products. Secondly, a Qi certified product will be issue.

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29

2020-05

Social Evaluation Of Wire Charger

advantage The use of wireless magnetic induction charging equipment can be invisible, the equipment wear rate is low, the application range is wide, the area of the public charging area is relatively reduced, but the reduced floor area share will not be too large. With high technical content and convenient operation, relatively long-distance wireless power conversion can be implemented, but the transmission distance of high-power wireless charging is limited to within 5 meters and not too far Easy to operate. Shortcomings Although the technical content of equipment is high, the economic cost of equipment is high and maintenance costs are high. Due to the realization of long-distance high power wireless magnetoelectric conversion, the energy consumption of the equipment is high. As the distance and power of wireless charging devices increase, the loss of useless power will increase. The wireless charging technology device itself realizes the secondary energy conversion, that is, after the step-down (or direct) conversion of the network power to the DC power, a higher-frequency switch-controlled AC conversion output is performed. Since high-power AC/DC conversion is the cause of the secondary wireless transmission of electrical energy, the electromagnetic spatial magnetic loss ratio is too large.

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29

2020-05

How To Charge Your IPhone Faster

This one’s easy. If you’ve upgraded your iPhone to iOS 11.2—and there’s no reason not to, unless you have an older device that simply can’t—you’ll now be able to enjoy 7.5W wireless charging on your iPhone 8, iPhone 8 Plus, and iPhone X. (That’s a 2.5W increase over pre-iOS 11.2 devices.) So, when you’re looking for a Qi-compatible wireless charger, make sure it can output at least 7.5W for an iPhone. (Some can output 10W, but will note in tiny print that only 10W is supported on Android devices and everything else gets 5W.) You can always get a wireless charger that does more, but you’ll be future-proofing. Your iPhone can only charge so quickly, much like how plugging your device into a 87W USB-C Power Adapter won’t make it charge any faster than the 29W Power Adapter.

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30

2020-05

This Is The Future Of Wireless Charging

The real wireless power should be like WiFi. When you enter the house, the phone in your pocket can be automatically charged. You do not need to put the phone somewhere or adjust the direction of the device, do not even need to know where the power transmitter is "Hadim Zain, founder and chief scientist of American wireless charging technology company Ossia, once said. However, today's wireless charging technology is still very backward: Although the realization of the "wireless", but still need to place the mobile device on the charging base, charging pad or stand to charge, if you take the phone away from these devices even a few centimeters, The charging process stops. However, recently, a non-contact wireless charging device developed by several MIT graduates may change the current situation - this wireless charger does not even charge the base, within 30 cm free charge. Pi, a startup focused on wireless charging technology, unveiled this wireless charging product Pi Charger for the first time at TechCrunch's entrepreneurial arena. It is shaped like a lampshade, allowing multiple devices to be charged within 1 foot (approximately 30 cm) of the charging device, regardless of position or direction. The charging product can charge four mobile phones and one iPad at the same time. At this stage, the maximum output power of this device is 20W, but in theory, it can increase power by integrating higher rated power components. As a result, you may be able to charge your laptop later. According to Pi McConnell, co-founder of Pi, the same as the international mainstream wireless charging technology standard Qi, Pi Charger also uses electromagnetic charging technology, which is equipped with a resonant inductor. However, their secret weapon is a special bunching algorithm. These beams can safely guide the magnetic field to the location of the device and achieve short-distance charging.

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31

2020-05

To Break The Wireless Charging Dilemma, We Must Continue To Work Hard In These Areas

Wireless charging standard issues. The core principle of wireless charging is based on electromagnetic induction, and the principle is not complicated. At present, there are two main technical branches in the industry, one is the magnetic field induction technology represented by the Qi standard, and the other is the magnetic resonance technology represented by the AirFuel standard. At present, the civilian field is more inclined to the QI standard. Different branded products can be charged with the Qi wireless charger as long as they have a Qi logo. Charging efficiency problem. This is a problem that wireless chargers urgently need to solve. Many people are reluctant to use wireless chargers. Part of the reason is that the charging speed is slower than traditional wired charging, let alone fast charging. The iPhoneX currently supports a 7.5W wireless fast charge. According to the test data, the 7.5W full time is about 3 hours to 3 hours and 30 minutes. Of course, the output of Samsung Wireless Fast Charge is about 10W, but there is no advantage in speed compared to wired charging. Phone model support. Wireless chargers are completely useless for mobile phones that do not have wireless charging capabilities. Although Apple's latest models of mobile phones and Samsung’s mobile phones all support wireless charging, other mobile phone manufacturers are slow to follow up. Like millet only MIX2S flagship models support wireless charging, and Huawei, OPPO, VIVO mobile phone manufacturers, it seems For wireless charging is still in a wait-and-see state. To popularize wireless chargers, more and more mobile phone models are required to support them. Wireless charging distance limit. Wireless charging is a distance limit, the general QI wireless charging vertical distance is only 5mm, these years can be 7mm or even 10mm, but still far from enough, can only solve the distance between mobile phone sets, which means that the user's mobile phone Still can not leave the shackles of the data line. We have always dreamed that wireless charging can completely get rid of the spatial distance limitation like WiFi, and can reach distances of five meters and ten meters in the vertical distance and horizontal movement area, but wireless charging at this distance is currently very unlikely to be realized. To solve this problem, major manufacturers are also further improving. For mobile phones that do not support wireless charging on the market, R&D and promotion of corresponding wireless charging receiver patches can enable mobile phones that do not support wireless charging receivers to experience wireless charging. . In addition, with the launch of the Xiaomi MIX2S, it is believed that more domestic mobile phones will accelerate the pace of adopting wireless charging technology and introduce more smart phone handsets that support wireless charging. It is believed that under the efforts of major manufacturers, these problems existing in wireless charging will be solved one after another. By then, wireless charging technology will usher in a peak of development.

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31

2020-05

MCU Solution And SoC Solution

The MCU solution cannot meet the market demand. At present, the SoC wireless charging chip is widely viewed by the industry as the most promising solution architecture. As the trend of component price increases intensifies, SoC solutions have more advantages due to fewer components. One of the characteristics is that the cost-effectiveness of the SoC solution can reduce BOM costs. People in the industry all know that the delivery period of MOSFETs, capacitors, chips, and other components has been continuously extended, and they are always facing shortages and price increases. As for the reasons for this, suppliers believe that the market is not in demand and there is no effective communication channel. Another reason is that the wireless charging production process is long, and this is due to the current wireless charging equipment integration is not enough, supply stability is easily affected by factors outside the industry. The SoC integrated chip can solve these problems well. It can allow equipment manufacturers to greatly reduce the material procurement catalog and improve the stability of supply. Under the background of rising prices, integration can be achieved, which is indeed a major selling point. The development path of mobile power, from the early MCU + power supply program structure, as the market matures slowly into SoC integration. Similarly, the wireless charging industry is bound to eliminate backward MCU solutions and embark on the same SoC development path. So, this kind of scheme of SoC can adapt to the market demand more, also be the cost-effective scheme that accessory manufacturer needs more at the same time.

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01

2020-06

Consumer Electronics Wireless Charging Development Trend

On April 20, 2018, Wei Wei, CEO of Wei Ge Technology was invited to attend the 2018 China Wireless Charging Industry Summit. At the meeting, Yu Feng published a keynote speech on "Discussion on Trends of Consumer Electronics Wireless Charging." Review of wireless charging history In 2008, the wireless charging alliance WPC was established; In 2012, the wireless charging alliance A4WP was established; In 2012, the first Nokia Lumia 810 mobile phone that truly meets the Qi standard was released; In 2015, Samsung S6 built-in wireless charging; In 2017, Apple, Xiaomi and Huawei joined WPC; In September 2017, iPhone X built-in wireless charging; In 2018, the millet MIX 2S and Huawei Mate RS have built-in wireless charging. In 2018, the radio market demanded blowouts, followed by a price war for wireless charging. For wireless charging, pursuing cost reductions, while bringing greater sales, has also hindered the development of technology to some extent. As a booming technology, how to improve the performance of wireless charging technology is a problem that every wireless charging practitioner must consider. How fast wireless charging can be Limited by the temperature rise of the mobile phone, the current mainstream fast charging power is around 20W. Wireless charging is less at high-voltage output and low-voltage output, and the wireless charging power of about 10W is equivalent to the charging power consumption of about 20W wired charging (possibly higher). How large can the charging area be? Increasing the number of coils is the most common solution in the market for extending the chargeable area of wireless charging, but increasing the number of coils also means increased costs. How far can the charging distance be? Need to reach 35mm vertical charging distance, need to do the following: 1. First of all, in the 35mm category, a greater proportion of the flux of the transmitting coil is along the vertical direction; 2. Most of the magnetic flux that needs to be confined near the mobile phone encounters the receiver-side coil, thereby avoiding excessive heating of the mobile phone body; 3. It is necessary to be able to excite and drive such a transmitting coil with a reasonable input voltage. The future we can expect The wireless charging function of the mobile phone is popular, and wireless charging is fully covered in public places. When you go out, you do not need to worry about the problem of insufficient battery life.

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01

2020-06

Wireless Charging Technology Should Be Gradually Popularized At A Speed That Is Visible To The Naked Eye

The concept of wireless charging originated very early, dating back to the late 19th century. Since the place where electricity is generated and the place where it is used are often very different from each other, and the wired transmission and distribution system has not yet been established, the early scientists hoped to be able to wirelessly transfer the electricity to the place of use, and there would be radio transmissions. demand. Many scientists did research in this field, but early attempts to apply radio energy transmission basically failed. After entering the new century, wireless charging technology has been renewed attention. The rise of modern wireless charging technology has the following prerequisites: 1. The perfection of the power grid system. In most countries in the world, the power grid as an infrastructure has been relatively well developed after tens or hundreds of years of development. People can easily get electricity from the grid. Electricity is no longer as scarce as it was a hundred years ago. Basically, people have electricity supply. In other words, the long-distance radio transmission needs across the region have disappeared within a wide range. 2. The power supply technology has been rapidly developed. The emergence of power electronics as a specialized discipline largely began in the 1960s. Accompanied by the development of aviation technology, stimulated by space competition, the demand for aerospace power supplies has increased, and thus power supply technology has also been developed and improved. After decades of development, the switching power supply theory and the manufacturing process of semiconductor devices have all achieved great development. At this stage, people can more easily implement high-frequency switching power supplies to achieve better power density and higher power supply efficiency. 3. The increase in wireless charging requirements in the region. With the development of mobile Internet technology, various types of intelligent terminal devices are becoming more and more common. In 2014, China’s smartphone shipments reached an astonishing 400 million units. While people are demanding faster Internet access speeds, faster computing speeds, and clearer display effects, the power requirements of various smart devices are constantly increasing. Limited to battery technology, the lifespan of smart devices has become the biggest problem that plagues users. In the era of functional machines, the time of common mobile phones can easily reach one week. In the era of smart machines, although the battery capacity has increased more than 3 times, the life of smart phones has dropped to about a day. Therefore, wireless charging has attracted more and more attention as a simple and feasible way to charge smart devices.

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05

2020-06

LG G7 Wireless Charging: What To Know

The new LG G7 ThinQ is available now and has plenty of neat features. And while you’ll love the big screen, water-resistance, or powerful cameras, don’t forget about wireless charging. In fact, there are a lot of cool things the LG G7 can do. Wireless charging is nothing new for LG, even if the iPhone competition only just got it. And while it’s a convenient feature that many love, it does come with some caveats and restrictions. Here’s everything you need to know about wireless charging with the LG G7. Doesn’t Support Fast Wireless Charging like Samsung devices Only works with Qi Wireless Charging Mats Doesn’t Work Through Most Cases First things first, there are two different types of wireless charging. If you buy the wrong charging pad or your car doesn’t support the right type, it won’t work on the LG G7. There is Qi Wireless Charging, and the PMA Wireless Charging Standard. The LG G7 uses Qi Wireless Charging. And while most devices use the Qi standard, there are still PMA accessories sold everywhere online. Make sure you get a “Qi” charger for your phone. Additionally, the LG G7 doesn’t support the same “fast wireless charging” as most Samsung smartphones, making it a little less convenient. Still, it’s a helpful feature that many buyers will enjoy. How it Works Instead of plugging in your phone you can quickly and easily lay it on a wireless charging pad. Once the two surfaces touch it instantly starts charging. That’s because there are charging coils in the back of the phone under the glass, and inside charging pads or docks. Basically, you drop the phone on the charger when you need more battery, and pick it up and walk off when you need it. Remember, wireless charging is slower than a regular wall outlet and cable charger. In fact, it’ll likely take around 2+ hours to recharge the LG G7 on a wireless charging mat. As a comparison, the fast charging USB Type-C cable and wall plug that came with your G7 will charge the phone in around 90 minutes.

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07

2020-06

Nanfu Launches First World Cup Wireless Charge: Cookie Size

As the Russian World Cup approached in 2018, Nanfu recently announced the world's first World Cup wireless charging, claiming to be the world's thinnest and smallest wireless charger, with a powerful performance of only 80 yuan, and once again acclaiming price butchers, causing great concern both at home and abroad. The Aircharge limited edition wireless charger called Aircharge is 4 millimeters thick, less than half the thickness of the iPhone X, thinner and lighter than the biscuit, and aptly called the cookie wireless charger. The reason why it can be made so thin is that Nanfu has adopted the world's first Air-thin thinning technology for this product, and innovatively removes the heating circuit completely from the charging tray, leaving only the induction coil. To achieve a thin but also not hot, low-temperature charging security, effective protection of mobile phone batteries. On the mobile phone model, because Nanfu is a member of the International Wireless Charging Alliance and supports the international standard wireless charging protocol, it can not only charge Apple's iPhone 8 and iPhone X, but also Samsung, Nokia, and even wireless of Xiaomi, Huawei, Hammer, etc. Charging models can support, so that with the charge. In terms of security, with intelligent FOD detection, intelligent temperature-controlled charging can detect the temperature of the device. When the temperature is too high, it will stop charging and automatically recharge when the temperature is reduced. The traditional wireless charger only has a coil in the middle, and it takes effort to align and lay down to charge normally, but the Nanfu World Cup biscuit wireless charge is not needed. The compact round panel is a coil, and the mobile phone can be charged without being time-consuming. Strive to align the back of the phone, very humane.

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