What is wireless charging technology

Wireless charging technology is the technology that uses magnets to charge devices completely without the aid of wires. Wireless charging technology, originating from wireless power transmission technology, utilizes magnetic **** vibration to transmit charge in the air between the charger and the device, while coils and capacitors form **** vibration between the charger and the device to achieve efficient transmission of electrical energy. Wireless charging technology uses a unified industry standard, and in the next few years, products such as cell phones, PMP/MP3 players, digital devices, and mobile devices will be able to use a new, low-energy, highly compatible, identical wireless charger. This charger is similar to a tray directly into the power supply, access to alliance certified with ldquo; Qirdquo; logo of the different brands of cell phones of various enterprises directly on it can be completed charging. Long-distance wireless charging Convenience needless to say, in addition, wireless charging is also more secure, there is no exposed connector, leakage, electricity and other security risks are completely avoided. Some people worry about the problem of radiation, this technology was first used in water purifiers, so far there have been 8 years, the safety has been verified by 36 countries, certainly will not bring harm to the human body and the environment. It is said that wireless charging roughly delivers energy through a magnetic field, while humans and the vast majority of objects around them are non-magnetic. Wireless charging also has the advantage of saving power, wireless charging equipment, the efficiency of receiving about 70%, and wired charging equipment, but it has a full automatic shutdown function, to avoid unnecessary energy consumption. And this efficiency rate is constantly improving, will soon be able to reach 98%. Wireless charging equipment than ordinary chargers ldquo; smart rdquo; a lot of different electronic products, power interface can automatically correspond to the need to charge, the transmitter and receiver chip will automatically start working at the same time, full of electricity, the two sides will automatically shut down. It can also automatically identify different devices and energy needs for lsquo;personalized workrsquo;, which is intelligent. Now, for the safety of consumers as well as their convenience considerations, the relevant researchers first provide a near magnetic field wireless charging technology (i.e., it needs to be placed next to the transmitter), at the same time, they are also researching long-distance wireless charging, which will be an emerging market. In fact, the technology now will be able to reach a range of 3 feet to 4 feet for effective power transfer, but this still needs to be verified by the relevant organizations. It is believed that in the next 5 to 10 years, or even sooner, long-range wireless charging will enter everyone's life. In the future, not only small power appliances, common household electrical equipment, medical equipment, power tools, office appliances, kitchen appliances and so on can realize wireless charging. In fact, accurately, it should be called ldquo; wireless power supply rdquo;, that is, while transmitting the use of electrical energy, without the need for any power storage devices similar to batteries, and even less need to charge in advance. Wireless charging Nokia Lumia 920 has built-in wireless charging, so users can simply place the phone on the wireless charger tray to start charging the phone. There are also a variety of wireless chargers to choose from, including the beautifully designed Nokia Wireless Charger and the Wireless Charging Pillow. Users will also be able to choose new accessories for their phone, such as speakers or headphones. JBL has introduced the JBL PowerUp wireless charging speaker accessory with high-quality audio playback and retro styling to make the accessory the perfect addition to the phone. Vision Apply to all conceivable and unimaginable areas. First, low power and low energy consumption of electronic communication products, office products, such as: cell phones, PDAs and other utilization. Next is the utilization of furniture products and low energy consumption home appliances. Secondly, transportation, such as electric cars, trains, and so on. Secondly, space stations, satellites, warships and aircraft carriers, etc. By collecting and wirelessly transmitting the ionospheric energy of the clouds to the places where energy is needed to realize a new generation of international military fields that are completely environmentally friendly and energy-saving. It is understood that wireless charging technology is achieved by two new devices, the first is the charger, it is to be connected to the power, and then there will be a ldquo; tray rdquo; with the charger for transit, as long as the cell phone and ldquo; tray rdquo; distance in the range of the provisions of the cell phone, then the cell phone will be automatically wireless charging. However, it should be noted that, due to the transmission is not some simple data, but electricity, so wireless charging at the current distance requirements are more stringent, cell phones and ldquo; tray rdquo; in the present can only be achieved within 1 cm of the proximity of the charging, but with the advancement of technology, this distance may be lengthened. Although the power does not have direct contact with the cell phone products, but by wireless charging for cell phones in the use of the effect is still the same as the ordinary charging method, the range will not be lost. The difference between wireless charging technology and traditional chargers Although wireless charging still requires a charger for the wireless transmission of electricity, which seems to be more troublesome, but the traditional charger can only charge a cell phone, and even each cell phone charger is different, while the wireless charging standard can charge all the cell phones that support Qi, and it can also support the charging of multiple products together, this charging can be realized by simply placing the phone on the table. In addition, the wireless technology standard in the maturity of the major public **** places will be equipped with such equipment, so whether it is at home, office or on the street or even on the train, the user can be wireless charging, very convenient. Recent progress From the point of view of technological development, wireless charging technology is built on the basis of RFID proximity magnetic coupling technology development, cell phones do not even need software changes can be installed charging coils and rectifier chips. There are several types of installation methods: First: an induction coil + chip, constituting an independent component. This type of component is as small as the size of a coin and as large as 38x40mm, with a coil wound with metallic copper wire. The second: cell phone lithium battery peripheral frame with a coil, called wireless charging lithium battery. The benefit of this type of battery is convenient to install, but the defects are also obvious, because the cell phone battery is a metal part, will block the charging electromagnetic wave penetration, making the charging efficiency is low. Third: the use of LDS (stereo circuit) technology, laser antenna on the plastic shell of the cell phone. Fourth: the use of FPC (flexible circuit board) manufacturing antenna components, the disadvantage is that the price is expensive. The advantage is flexible, and thin, easy to install. The above types of ways, the most promising is the LDS technology, the domestic launch of a series of micro air laser plastic, magnetic laser plastic, fully automatic large format high-speed laser machine, so that the manufacturing process can be popularized. In 2013, it will be the year that wireless charging technology begins to popularize.