Pressure transmitter and electronic transformer insist on in
Release time：2021-03-27 09:32:43 Popularity： Source：未知
In the central position of the electronic transformer profession, only to take the road of skill innovation, in order to get rid of this dilemma between the two ends. The electronic transformer in the power supply, like any commodity as a commodity to carry out any skill innovation, must be in the specific use of the premise to complete the specific function of the best function quotation. Since the beginning of this year, the prices of oriented and non-oriented cold-rolled silicon steel have increased. Compared with R type, CD type and EI type cores, the cored cores can save more than 20% of the cored data cost because of less data consumption, the application range of electronic transformer is extended. Compared with the non-oriented cold rolled steel, the coiled ring core can fully exert the function of oriented cold rolled silicon steel. Electronic transformers must be adapted to the volume and weight requirements of consumer power products. Silicon steel is the core material used in many electronic transformers in power supply. As the power user of the low-grade electronic transformer, we can select and buy in the whole world, and constitute the buyer's market. These years, the power supply for the use of electronic transformer core data and conductive data quoted prices have risen, upstream raw materials constitute the seller's market. Unlike r type, CD TYPE AND EI type iron core, it can make full use of silicon steel data, no corner waste, data utilization rate can reach above 98% . The data of high temperature and full magnetic flux density soft ferrite can also extend the upper temperature limit of electronic transformer to 120 or even 150. To reduce the amount of core in electronic transformer, it is necessary to advance the working magnetic flux density of silicon steel (working magnetic flux density) . Take the road of skill innovation, take time to remember the intention to arrive. Together, the electronic transformer raw material (core material and conductive material) quoted price rose. As the temperature increases, BS decreases, the beginning of PCV decreases, and increases at the trough. In particular, Curie's low temperature, full magnetic density BS and PCV power loss per unit volume change with temperature. But every small step of improvement, can bring new ideas and new products. Because power is an important functional goal of electronic transformer, nowadays, in order to save energy, many power supply commodities put forward standby loss request. As a large class of electronic transformer, power frequency transformer can not reduce the cross section and volume of core, but reduce the number of coil turns and the amount of copper. In today's copper prices are much higher than the core material situation, may be a very good design improvement plan. Therefore, under the premise of high temperature, as long as BS adhere to a higher level, can work magnetic density BM selected higher, thus reducing coil turns, reduce the amount of copper and cost. The core loss of electronic transformer is the primary component of standby loss, so the power or loss of electronic transformer is required strictly. The working magnetic density of silicon steel depends on both the full magnetic flux density and the loss. Therefore, how to reduce the volume and weight, how to reduce the cost, electronic transformer has become the primary direction in these years. Soft ferrite is the core material used in many electronic transformers in medium and high frequency power supply. Compared with metal soft magnetic material, soft ferrite has several weaknesses, such as low full magnetic density, low permeability and low Curie temperature. However, in the sophisticated electronic transformer profession, the skill difference contrasts the difficult question. Today's power products, all over the "light, thin, Short, small" for the characteristics of miniaturization and portable development.
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