What is the precision of a laptop power supply charger? What are the requirements for European imports for its accuracy?
China seems to be 220W. While the United States seems to 180W
China is 220W, most of Europe is 220 ~ 230W. So the European electrical appliances into the Chinese market is not a big problem.
First, to be able to adapt to the local voltage load, so the notebook's power adapter input voltage between 110V ~ 220V can be used normally!
Second, the output current and voltage to a standard range, can not exceed or below this standard!
Third, the safety inspection, so the switching power supply should be carried out safety inspection, safety detection is to switch the power supply connected to more than 2000V voltage and 1 to 2 seconds, and can be used normally, this test is mainly mine Hit and short-circuit protection access to switching power supply of electrical or digital products!
