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High Frequency Transformer Portable Development

Sep 15, 2017

High Frequency Transformer Portable development

Transformers in the domestic new progress

In recent years, the power supply in the electronic transformer used in the core material and conductive material prices continue to rise, the upstream raw materials to form the seller's market. As a downstream power transformer for electronic transformers, users can choose and purchase on a global scale to form the buyer's market. In the middle of the electronic transformer industry, only take the road of technological innovation in order to get rid of this two stormy dilemma. However, in the mature electronic transformer industry, technological innovation is more difficult. But every small part of the improvement, you can bring new ideas and new products.

Take the road of technological innovation, we must always remember to achieve the purpose. The electronic transformer in the power supply, like all the products as a product of any technical innovation, must be in the specific conditions of use to complete the specific functions, the pursuit of the best cost performance. Now the power products, generally in the "light, thin, short, small" as the characteristics of the miniaturization and portable development. The electronic transformer must be adapted to the user's power supply for the volume and weight requirements. At the same time, electronic transformers raw materials (core materials and conductive materials) prices. Therefore, how to reduce the size and weight, how to reduce costs, become the main direction of the development of electronic transformers in recent years.

Silicon steel is a large-scale use of electronic transformer in the power frequency of the core material. To reduce the amount of iron in the electronic transformer, it is necessary to improve the working magnetic flux density (working magnetic density) of the silicon steel. The magnetic flux of the silicon steel is determined by both the saturation magnetic flux density and the loss. Because the efficiency is an important performance indicators of electronic transformers, and now, in order to save energy, many power products are proposed standby loss requirements. The core loss of the electronic transformer is the main component of the standby loss, so all of the electronic transformer efficiency or loss of a clear and stringent requirements.

In recent years, the orientation and non-oriented cold-rolled silicon steel prices, winding ring core, compared to R-type, CD-type and EI-type core, due to less consumption of materials, can save more than 20% of the core material costs, The use of the transformer. Winding ring core can give full play to the performance of oriented cold-rolled silicon steel, compared with non-oriented cold-rolled steel, working magnetic density is much higher. At the same time, unlike the R-type, CD-type and EI-type core, you can make full use of silicon steel materials, there will be no corners of waste, material utilization can reach more than 98%.

As a variety of electronic transformers frequency transformer, the use of high magnetic core material, you can not reduce the core cross-section and volume, but to reduce the number of turns, reducing the amount of copper. In the case of copper prices are now much higher than the core material in the case, may be a better design improvement program.