How to choose a laptop power adapter
When choosing a laptop power adapter, You should pay attention to several aspects: 1. first, the type of socket, the model corresponding to the laptop; 2. then the voltage, the adapter voltage must...
The Real "long-distance" Wireless Charging Technology is Here!
Last year, Apple announced support for wireless charging in its new generation of iPhones (8, 8 plus, and X). The first reaction of many netizens is to cheer that they can finally get rid of the...
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...
Development History of Wireless Chargers
In 1890, physicist and electrical engineer Nikola Tesla (NikolaTesla) has already done a wireless transmission test. The International System of Units of Magnetic Induction is also named after him....