Description
Switching power supplies are becoming popular and miniaturized. Switching power supplies will gradually replace transformers in all applications in life. The application of low-power micro switching power supplies should first be reflected in digital display meters, smart meters, mobile phone chargers, etc. At this stage, the country is vigorously promoting the construction of smart grids, and the requirements for electric energy meters have increased significantly. Switching power supplies will gradually replace the application of transformers in electric energy meters.