Electronic transformer is a commonly used power conversion device and is widely used in power systems. In electronic transformers, magnetic coupling is an important issue because it directly affects the performance and efficiency of the transformer. This article will discuss the issue of magnetic coupling in electronic transformers and explore how performance can be improved through design and material selection. ​

First, let’s talk about the magnetic coupling problem in electronic transformers. In electronic transformers, magnetic coupling refers to the phenomenon that the magnetic field generated on one side of the transformer affects the other side. This magnetic coupling inevitably leads to energy loss and reduced efficiency. Specifically, magnetic coupling will lead to an increase in magnetic flux leakage and magnetic losses, as well as an uneven distribution of current and an increase in copper losses. ​

In order to reduce the impact of magnetic coupling on the performance of electronic transformers, we can improve it through design and material selection. First, appropriate structures and geometries can be used in the design to reduce the leakage of magnetic flux lines, such as increasing the core length and width of the transformer. In addition, we can also enhance the magnetic coupling by increasing the cross area of ​​the core.

Secondly, in terms of material selection, we can choose materials with high magnetic permeability to improve the magnetic coupling effect. Commonly used materials include silicon steel sheets and ferrite. Silicon steel sheets have the characteristics of low magnetic permeability and low magnetization loss, which can effectively reduce magnetic flux leakage and iron loss. Ferrite has the characteristics of high magnetic permeability and low magnetic loss, and is also a commonly used material choice. ​

In addition, we can also improve the magnetic coupling effect by changing the arrangement and connection of the windings. For example, a three-winding transformer can be used to further improve the degree of magnetic coupling by rationally arranging the position and connection of the windings.

In summary, the magnetic coupling problem in electronic transformers is a very important issue. Through reasonable design and material selection, we can effectively reduce the impact of magnetic coupling on transformer performance and improve the efficiency and performance of the transformer. In addition, with the continuous advancement of science and technology, more new materials and technologies that can improve the magnetic coupling effect may appear in the future, which will further promote the development of electronic transformers.