Today to share the popular knowledge of wireless charging, which will also explain the advantages and disadvantages of wireless charging technology, if you happen to solve the problem you are now facing, don't forget to pay attention to the site, now start!
< ul>The principle of wireless charging is that through near-field induction, the wireless charging device conducts energy to the charging terminal device, and the terminal device converts the received energy into electrical energy and stores it in the battery of the device. The principle of energy conduction is inductive coupling, which ensures that there is no exposed conductionElectrical interface. It can not only eliminate messy transmission lines between devices, but also be safer for electronic devices such as electric toothbrushes that are often in contact with conductive media such as liquids.
Wireless charging technology has not been widely popular reasons: the number of terminals is less two years ago, Nokia Lumia 920 built-in Qi wireless charging technology, and randomly equipped with wireless charging board, but no other manufacturers followed up. Although some third-party manufacturers have also launched wireless charging accessories, but need to install a special shell, it is not compatible with other digital devices, the use of inconvenient form.
The principle of this methodAnd hardware requirements are relatively simple, the relevant standards developed earlier, for example, we are familiar with the Qi Wireless charging standard is developed by the WPC (Wireless Power Consortium, wireless charging Alliance). Therefore, this kind of charging technology has achieved scale, its production cost is low, and has passed the test of the market, and is more popular. The disadvantage is that due to the limitation of the technical principle itself, the transmission distance is too short, and with the increase of the distance, the loss of wireless charging will increase and the efficiency will be reduced.
The only way to popularize: universal standards and mobile phone manufacturers support the formation of universal standardsWe can.
The two main camps, the Wireless Charging Alliance (A4WP) and PMA, have declared mutual compatibility, which means that future wireless charging devices based on these two standards will be able to be compatible with each other's phones, greatly expanding the scope of device adaptation. However, there are no details on how to achieve bidirectional compatibility between the two standards. Broadcom chief technology officer Henry-Samueli pointed out that the biggest obstacle to the adoption of wireless charging technology is the inconsistent standards.
Wireless charging mobile phone popularity limited factors Wireless charging mobile phone Why rare? On the one hand, its use formInconvenience is a big factor. Although the early Nokia Lumia 920 has built-in Qi wireless charging technology, it requires a special case and base, which is not convenient to use. The base's size and charging distance limits also limit the user experience.
1. Wireless charging technology was invented by Nikola Tesla. In 1890, the physicist and electrical engineer NikolaTesla had already done experiments with wireless power transmission. Magnetic induction strength of the countryThe system of international units is also named after him.
2. Wireless charging technology was invented by genius scientist Nikola Tesla. As early as 1890, physicist and electrical engineer Nikola Tesla experimented with wireless power transmission. The International System of Units for magnetic induction is also named after him. The first patent application for wireless charging technology can be traced back to 1891, proposed by Nikola Tesla. The core of this technology is that it does not need to directly power the device through physical lines, but through electromagnetic induction or magnetic resonance principles, between the charger and the deviceVertical wireless energy transmission. Tesla's wireless charging research laid the foundation for later wireless charging technology. 4. Since Google launched its flagship smartphone LG E960 (Nexus 4, designed and manufactured by LG Electronics) in 2012, wireless charging of mobile phones has also been promoted to the public's vision. The phone is gently placed on the charging hemisphere, and the phone can be charged without doing any operation. 5. LorneWhitehead, a professor in the physics department at the University of British Columbia, leads his own development team for electric vehiclesWireless charging technology. The difficulty in developing wireless charging technology for electric vehicles is that the high frequency and high intensity of the current can cause harm to nearby people. Whitehead has long believed that energy can be transferred efficiently between magnets.
6, mobile phone wireless charging is the first invention in Finland in 2012, before there was a similar design, until the Nokia 920 was launched in 2012, is the true sense of wireless charging mobile phone.
The logic behind the wireless charging technology applied by the German WIFERION, which was acquired by Tesla, in the modified Model 3 is electromagnetic induction wireless charging. At present, the modified Tesla Model 3 can achieve a maximum of 12KW wireless charging power, the fastest one hour to make up 80 kilometers, full may take about 6 hours.
First of all, Tesla's wireless charging technology uses the principle of electromagnetic induction. The technology transmits energy through special electromagnetic fields to keep Tesla cars in parkThe car charges automatically. This technology is not only efficient, but can also greatly reduce charging time. Secondly, the wireless charging technology of Tesla cars also has the characteristics of intelligence.
The charging process of Tesla takes about 12 hours, but when using a home charger, the voltage may drop due to the peak load of the transformer, which affects the charging speed. To increase efficiency, it is recommended to install a special wall-mounted charger, which will reduce the charging time to about 9 hours. The optional dual built-in charger can further shorten the charging cycle, and it only takes about 4 hours to full charge.
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