Design And Analysis Of The Integrated Circuit Transformer

Transformer is the electric equipment that through the principle of electromagnetic induction, to a certain level of voltage power sharing the same frequency into a voltage level of the exchange. With the development of electronic technology, electronic transformer industry in a greater product mix changes, showing product diversity. International power electronics speed development of the present high frequency, high power density, the trend of small, corresponding to the performance of electronic transformer to the growing demands.Traditional transformer is a three-dimensional energy converter of core and coil, because of large-scale integrated circuit technology development, high frequency, small size, low-power high-frequency transformers, so researchers can replace conventional non-core transformer.In recent years become a hot issues, and there were many non-core planar transformers, such as non-core plane PCB transformers.This article introduces a new type of semiconductor plane transformer, also known as IC transformer. Although the principle is same with the conventional transformer, but have a great of differences from the transformer ever. Than the PCB transformer, this new type of transformer combination of semiconductor technology, in the semiconductor substrate on the use of doping etching process to a certain carrier density of the coil, the smaller, more efficient, more power density, is the true meaning of the "semiconductor" transformer.This paper first through conventional transformer on the basic structure and working principle leads to the transformer semiconductor design, described the semiconductor transformer and a three-dimensional model of the coil structure, and use a transformer to the analytical method for analysis, simulate using simulation software. Then electromagnetic fields from basic Theory, introduced in the magnetic field and its finite element simulation of the application and use of finite element analysis of the transformer modeling and simulation. Thus, the new transformers are a number of important parameters and characteristics.At present, the transformer is only a kind of theoretical research stage, but with a more in-depth research, semiconductor transformer will highlight the advantages of its widely used in national defense, aerospace, communications, computers, automotive electronics, digital products, and other fields , is of important practical significance.