A few days ago, some manufacturers have demonstrated the wireless charging power up to 120 watts, which can fill a smart phone with a capacity of 4000 MAH in 15 minutes.
According to an article written by domestic media, in February this year, the official website of the Ministry of industry and information technology released the Interim Provisions on radio management of wireless charging (power transmission) equipment (Draft for comments),It is required that from January 1, 2022, the rated transmission power of all mobile and portable wireless charging equipment manufactured, imported, sold and used in China shall not exceed 50W.
Obviously, 120W is far beyond the requirements of the draft and may be stopped by the regulatory authorities in the future.
The reason for the clear requirements on the working frequency band and power upper limit of wireless equipment is to standardize the orderly use of radio spectrum resources by wireless charging (power transmission) equipment, avoid harmful interference to all kinds of radio services carried out according to law, and maintain the air wave order.
It is reported that too high wireless charging power may cause security risks to aviation, shipping and astronomical observation.
- THE END -
Reprint please indicate the source: fast technology