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...
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...
Microsoft develops a new technology charger device
What should I do if my mobile phone has no electricity and no mobile power? There is light on the line. Also a new technology charger device developed by Microsoft researchers is the technology that...
Circuit Design of 65W Laptop Adapter
Probe domestic double-head probe 038-BB-5.7L The shape of the two ends of the needle is outside the pointed needle Photocoupler Summary: The power supply design uses the TOP259EN device. The...