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...
2020 Guangzhou Asia-Pacific Power Products and Technology Exhibition
The Asia-Pacific International Power Products and Technology Exhibition (Power China 2020) is a special exhibition under the banner of the 2020 China International Energy-Saving Energy Storage and...
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...