In the power system, the transformer is an important electrical equipment. Its main function is to realize the conversion of voltage levels to meet the power needs of different equipment. Among them, high-frequency transformers are widely used in various electronic equipment due to their small size, light weight, and high efficiency. As a special form of high-frequency transformer, the frameless series high-frequency transformer has attracted widespread attention for its energy conversion efficiency. So, how high is the energy conversion efficiency of the skeleton-free series high-frequency transformers?
First, we need to understand what a frameless series high-frequency transformer is. Simply put, bobbinless series high-frequency transformers are high-frequency transformers without traditional iron cores and coil bobbins. The main feature of this kind of transformer is the use of a special magnetic core material, which realizes the function of the transformer by directly winding the coil on the magnetic core. Due to the elimination of the traditional iron core and coil bobbin, the weight and volume of the bobbinless series of high-frequency transformers are greatly reduced, and their working efficiency is also improved.
So, how high is the energy conversion efficiency of the skeleton-free series high-frequency transformers? The answer to this question is not a fixed value, because the energy conversion efficiency of the bobbinless series high-frequency transformer is affected by many factors, including the properties of the core material, coil design, operating frequency, etc. Generally speaking, the energy conversion efficiency of bobbinless series high-frequency transformers can reach more than 90%, which is much higher than the efficiency of traditional bobbin-based high-frequency transformers.
Specifically, the energy conversion efficiency of the bobbinless series of high-frequency transformers mainly depends on two aspects: one is the magnetic permeability and loss of the magnetic core material; the other is the design and winding process of the coil. The higher the magnetic permeability of the magnetic core material, the smaller the loss, and the higher the energy conversion efficiency of the skeleton-free series high-frequency transformer. The design and winding process of the coil directly affect the working performance and efficiency of the transformer. If the coil design is unreasonable or the winding process is not in place, the energy conversion efficiency of the frameless series high-frequency transformer may be reduced.
In addition, the operating frequency is also an important factor affecting the energy conversion efficiency of the skeleton-free series high-frequency transformers. Generally speaking, the higher the operating frequency, the higher the energy conversion efficiency of the skeleton-free series high-frequency transformer. This is because under high-frequency working conditions, the hysteresis loss and eddy current loss of the magnetic core will be reduced, thereby improving the energy conversion efficiency.
In general, the energy conversion efficiency of skeleton-free series high-frequency transformers can reach more than 90%, which is much higher than the efficiency of traditional skeleton high-frequency transformers. However, in order to improve the energy conversion efficiency of the bobbinless series of high-frequency transformers, it is necessary to optimize the selection of magnetic core materials, coil design and winding process, and operating frequency.
