Wireless charger operating frequency Wireless charging emission standard , according to QI standard is 110-205kHz; Cell phone communication wireless charging emission standard frequencyIt is in the range of 0.8GHz to 2GHz (different communication systems will vary, 1GHz=10^9Hz).
According to the Electromagnetic Radiation Protection Regulations, the average radiation absorption rate of the whole body should be less than 0.02 w/kg within 24 hours a day for 6 consecutive minutes. However, there are no specific standards for wireless charging. Experts say that while there are national standards for traditional mobile phone chargers, there should be national industry standards for emerging wireless charging devices as soon as possible. The Qi wireless charging standard uses a low-frequency non-ionizing frequency (110-205k) that is harmless to the human bodyhz).
The test found that wireless charging emission standard : Using a high-sensitivity radiation tester, the radiation value of the wireless charger is between 150 and 180, although compared to the 250 to 627 in front of the computer screen or the thousands of values when making a phone call, but the cumulative effect may not be ignored. At the same time, when wireless chargers, mobile phones, computers and other electronic devices are used together, the radiation value will increase significantly.
First of all, not all wireless chargers on the market can be competent for watch charging. Many products do not clearly label the radiation value, which is inWPC) launched. It uses electromagnetic induction technology to transmit electrical energy from the charging device to the receiving device. The Qi standard aims to achieve the standardization and universality of wireless charging, so that different brands and models of equipment can be wireless charging through the Qi standard.
qi2 wireless charging means a new enhanced wireless charging standard. The biggest experience difference QI2 brings to users is that the use of QI2 certified wireless charging devices can provide 15W charging experience to devices that support QI2. WPC sees QI2 as a significant opportunity in 23/24. Qi2 is WPC WirelessThe new enhanced wireless charging standard developed by the Charging Alliance in 2023.
Qi2 Wireless Charging Protocol is the latest wireless charging standard from WPC that brings faster wireless charging speed, versatility and compatibility to handheld and mobile devices. Qi2 charging devices can be aligned and charged faster using magnets, just like existing MagSafe accessories. Compared to the previous Qi standard, Qi2 uses magnetic power profile technology, which claims to ensure the perfect match between the device and the charger, thus improving energy efficiency.
In general, the Qi protocol is not only a generation of wireless fast charging technologyThe table is also a key standard driving industry progress, and its technical update and certification process demonstrates WPC's leadership in the field of wireless charging. The
Qi2 standard provides 15W transmission capability in MPP and EPP modes, and higher transmission power is later achieved after high-precision alignment. In addition, chargers certified by the Qi2 standard are required to support a highly secure authentication method. The Qi2 standard's magnetic alignment offers a rich combination of practical features, including ease of use and locking haptic feedback for "semi-automatic alignment."
Qi2 is a wireless charging alliance based on Apple MagSafe technology is the latest standard to provide better compatibility and charging efficiency, with magnetic and 15W wireless output as significant enhancements. Apple's iOS 12 and later versions of the iPhone 13-15 series support Qi2 wireless charging protocol. Major accessory manufacturers have launched a variety of Qi2 certified products, such as Anker, Belkin, millet, Beisi and other brands.
2, the use of electromagnetic induction principle for charging equipment, the principle is similar to the transformer, through the transmitter and receiver end set coil, transmitter coil under the action of power to send electromagnetic signals, the receiving end coil to receive electromagnetic signals and electromagnetic signals into current, so as to achieve the purpose of wireless charging.
3, wireless charging is also known as inductive charging,Non-contact inductive charging, derived from wireless power transmission technology, is the use of near-field induction, that is, inductive coupling, by the power supply device (charger) to transmit energy to the power device, the device uses the received energy to charge the battery, and at the same time for its own operation.
4, the basic principle of wireless charging is to convert the current into a magnetic field, and the magnetic field is transmitted through the air and converted into a current to be transmitted to the intelligent terminal. When the system works, the input end converts the AC mains into direct current through the full bridge rectifier circuit, or uses the 24V direct current end to supply power to the system directly. The DC power output passes through the power management moduleThe 2M active crystal oscillator is converted into high frequency alternating current to supply the primary winding.
1, wireless charger use method Wireless charging emission standard : Connect the charger and data cable of the mobile phone with the wireless charging and emission standard Wireless charger , and then put the mobile phone directly (vertically) or horizontally in the center position of the left and right of the wireless charger baseWireless charging, the indicator light will have a breathing effect, 5 seconds after the extinguishment, plug and play, convenient and fast.
2, wireless charging Wireless charging and emission standard Use method to use wireless charging function, first need to support wireless charging wireless charging and emission standard mobile phone placed on the wireless charging board. Make sure your phone is positioned for charging to begin. The principle of wireless charging is that through an electronic receiver, the power is transmitted to a terminal device equipped with a receiver within a certain range. thisEven if the device is not plugged into the charging cable, it can be charged.
3, can refer to the following information: wireless charger how to use the mobile phone standard charger and data cable connected to the wireless charger, and then the mobile phone is placed (vertical) or horizontally in the wireless charger base left and right center position, you can achieve wireless charging, the indicator light will have a breathing effect, 5 seconds after the extinguish, plug and play, convenient and quick.
4, the wireless charging board will transmit energy through the radio wave, and the electric energy will be transmitted to the mobile phone to achieve wireless charging. The principle of wireless charging is through an electronic receiver, in a certain range of powerTo a terminal device equipped with a receiver. Therefore, as long as the mobile phone supports wireless charging, and the receiver of the charging plate is within a certain range, wireless charging can be achieved.
1, South core technology driven by technological innovation wireless charging and emission standards , and constantly break through wireless charging technologyThe boundary of technology wireless charging and emission standards , the birth of SC9610&SC8701 wireless charging and emission standards marks the arrival of a new era of high power wireless charging. These two products not only represent the wireless charging and emission standard Nanxin Technology's excellent technical strength, but also promote the entire industry to develop in the direction of higher power and higher efficiency.
2, accompanied by Liu Min and Liang Yingzhen, Director Wang Yong and his delegation first conducted a on the Shanghai office of Nanxin Technology.strong> Wireless charging emission standard visited. They reviewed some of the representative solutions and terminal product cases of South Core Technology, and had an in-depth understanding of several representative fast charge solutions and in-depth cooperation terminal projects, including charge pump solution SC8571 series, high-power wireless charging solution SC9610 series, 65W gallium nitride solution and front-loaded vehicle charging solution.