What is the status of China's foreign trade import and export recently?
On April 30th, the Ministry of Commerce held a regular online press conference. The spokesperson said that the current epidemic's impact on China's foreign trade is mainly on the demand side, with...
DIY solar wireless charger
This design is easy to use and is suitable for most electrical appliances that can accept electromagnetic fields. It is very convenient, and can get free electricity when the sun comes out. Take a...
A wireless charger circuit principle design
1 Wireless charger principle and structure The wireless charging system mainly adopts the principle of electromagnetic induction, and energy transfer through the coil realizes energy transfer. As...
Is the wireless charger radiant to the human body?
Technology is more and more developed, wireless charging replaces wired charging, simple and convenient. Wireless charging technology has obtained 20 patents in 2007. A variety of devices can use a...