1, but just now, the Ministry of Industry and Information Technology suddenly came out of new news. From next year, the power of mobile wireless charging equipment will be less than 50W, which also seems to reflect the wireless fast charging technology of mobile phone products will be limited. Mobile phone wireless fast charge may be the highest will also be fixed at 50W, of course, there is certainly a reason for such restrictions.
2, the Ministry of Industry and Information Technology stipulates that the power of wireless fast charge must be less than 50 watts, there are such requirements in the end whyThey are not very clear, but what they know is the limit, the power of this charge is not because of radiation, because radiation is everywhere, all the time, and not all radiation will have an impact on the human body.
3, the regulation requires that since January 1, 2022, mobile and portable wireless charging equipment rated transmission power requirements do not exceed 50W. Although it is only a draft for comments, there is news that the 50W wireless fast charge cap policy has begun to be implemented.
4, the comparison of domestic and foreign mobile phones collected in 2023 can easily find that overseas brand mobile phones are no matterOver the power consumption required by the device, the device will not accelerate charging as a result. Therefore, if the maximum power of the Huawei wireless charger is 40W, and the power of the charging head is 66W, the 40W fast charging cannot be achieved, but may cause safety problems such as overheating of the charger.
3, the charger problem First of all, check whether the charger has a problem. If the charger is damaged or the cable is loose, it will not be able to charge super fast. You can try to replace the charger or re-plug the charger cable. Charging cable problem Second, the charging cable can also be the problem. If the charging cable is damaged or in poor contact, it willThe super fast charge is not possible. You can try to replace the charging cable or re-plug the charging cable.
1, the above is the schematic diagram, the principle is the principle of electromagnetic induction.
2, first of all, you need to have an APPLE mobile phone that supports unlimited charging, such as iPhone X, iPhone8 plus, etc. Then you need to buy wireless chargers from regular channels, recommend going to Apple officialParty dealer to buy. Then power on the wireless charger, make sure there are no magnetic objects around before connecting the power. Then place it in a flat place to prevent the phone from slipping off it.
3, electromagnetic induction, magnetic field resonance, electric field coupling wireless charging to charge the mobile phone principle. Most of the wireless charging on the market now uses electromagnetic induction, which is a widely used technology. The efficiency of charging is very fast. Many of the original accessories of the electronics factory are using this principle, and now we see that most of the Apple mobile phones on the market have this function.
4, Pingguo equipmentYou can use the Zens SMART for wireless charging, but you need to wear a charging case and keep a short distance from the charger.
5, the working principle of wireless charger: electromagnetic induction This is the most common way of working wireless charger, using the principle of electromagnetic induction, through the electromagnetic induction between the primary and secondary coils to generate current, so as to achieve the transfer of energy in the space; The implementation of this wireless charger has been promoted by the Wireless Charging Alliance.
6, the principle of Apple's two-way wireless charging technology is to use magnetic resonance technology, through the two closeTransfer electrical energy between devices. Specifically, the technology is based on the Qi standard and uses a frequency of 5W. Make both devices become Wirelessly Charged devices at the same time, so that they form a resonance under a specific frequency of electromagnetic radiation, so as to achieve wireless charging between the two devices.
For why there are such regulations, the Ministry of Industry and Information Technology said: ThisIt is to regulate the orderly use of radio spectrum resources by wireless charging (power transmission) equipment, avoid harmful interference to all types of radio services carried out in accordance with the law, and maintain the order of air waves. I personally think that the use of radio frequency resources really needs to be more rational and orderly, otherwise there may be interference with radio signals, which will have adverse effects.
The author believes that this may be the first Xiaomi to comply with the Ministry of Industry and Information Technology on the "Wireless charging (Power transmission) equipment radio Management Interim Provisions (draft for comments)". The regulation requires that, as of January 1, 2022, mobile and portableThe rated transmission power of wireless charging devices must not exceed 50W. Although it is only a draft for comments, there is news that the 50W wireless fast charge cap policy has begun to be implemented.
Huawei P50 Pro supports 50W Huawei Wireless Super Fast Charge and supports wireless reverse charging. Note: You need to purchase Huawei Super Fast Charging vertical wireless charger (Max 50W) or Huawei Super Fast Charging Wireless Car Charger (Max 50W) separately, and use it with a specific 66W Huawei Super Fast charger. The actual charging power varies according to the actual scenario.
From the mobile phone charging display, it can be shown that 50W fast charge is being carried out, and it only takes 28 minutes to be full when the speed wireless charging mode is turned on, and even when the speed wireless charging mode is turned off, it only takes about 48 minutes to be full.
Now there is wireless charging power small mobile phone support wireless reverse charging Wireless charging power small , is built on the basis of wireless charging wireless charging power small , the mobile phone does not support wireless charging, it can not be reversed wireless charging. After NFC wireless charging, even if the mobile phone does not support wireless charging, NFC can be used to charge other devices.
However, using NFC for wireless charging, the power is now up to 40W or even higher wireless charging power is small 's technology is incomparable. According to the NFC Forum, WLC (Wireless Charging via NFC Solution) can use an antenna in NFC-enabled devices to manage communication and charging, so currently only 1W charging speed can be achieved through this solution.
In short, wireless charging is a convenient way to charge, if used properly, it will not have a negative impact on the phone.