Switching power supply transformer core how to choose?
2, switching power supply transformer, is to join the switch of the power transformer, but also both insulation isolation and power transfer function. Generally used in switching power supply and other occasions involving high-frequency circuits.
3, commonly used transformer core are generally made of silicon steel sheet. Silicon steel is a silicon (silicon also known as silicon) of steel, its silicon content of 0.8 to 4.8%. By the silicon steel transformer core, because the silicon steel itself is a magnetic permeability of a strong magnetic material, in the power coil, it can produce a larger magnetic induction, which can make the transformer volume smaller.
1, according to the power to select the core size, combined with the layout of the whole board to select the core shape, according to environmental factors, switching frequency selection core material, according to the feasibility of core procurement, raw material costs to choose, consider the transformer processing technology Requirements, select the skeleton core shape, the output power of the size of the core material is mainly to see the size of the cross-sectional area of ??the core, the number of windings and the number of windings and so the main look at the size of the window area of ??the core material, in fact, Its best application. That is, when you choose to use, Yang long, to avoid its short, so that better design, select the core material, the first to determine the basic parameters of its core material, that is, according to your specific use Environment to choose whether the PC40 or PC50;
