Within a smart grid, the major actions that take place are power generation, transmission, transformation, distribution, and consumption. The image below shows a typical block diagram for a smart grid.

Switching power supplies are widely used in medical devices, such as ventilator, mask machine, PCR nucleic acid detector, body temperature detector, multi-parameter monitor, x ray, CT/PET, blood analyzer, heart-lung machines and diagnostic devices, etc.

In the power supply application, to ensure the stability and the safety of the power supply, peripheral protection circuits are often designed to ensure that the power supply is not damaged during use. Peripheral circuits include surge protection circuit,

what are the isolation features? For example, safety isolation, common-mode noise isolation, ground loop elimination, or for occasions with floating ground requirements, are its key features. In addition to isolation, voltage conversion is also one of the

What is the system overvoltage? In a power system, any waveform whose peak voltage exceeds the highest peak voltage in the normal operation of the power system belongs to system overvoltage.

At ordinary times, common electronic equipment and natural phenomena will produce electromagnetic interference. How to make electronic equipment work normally in such a complex electromagnetic environment without affecting the surrounding electromagnetic.