EE 42 Transformer

The popular EE 42 transformer work for high frequency

High quality EE 42 transformer with high-efficiency process of management

High frequency EE 42 transformer,Strict and scientific quality management system, standardized  operation process

Strong package

Advantage:
 Our transformer  inductance department has several automatic production line with automatic  multi-axis winding machine, automatic assembly ferrite core machine.

Tips:analysis of the bad reason of high frequency transformer overcurrent.

transformer overcurrent, what causes high frequency transformer overcurrent. Through actual production and analysis of defective products, we found that for high-frequency transformers, overcurrent is generally caused by the following four aspects.

• 1.Transformer Saturation.

• It is well known that the winding of transformer will show sensibility under the condition of ac, and its ac impedance is large, and its impedance is proportional to the permeability. Have saturation magnetic flux density and magnetic materials, if the transformer design, improper or bias phenomenon will make transformer work flux density is too high, when is greater than the saturation flux density, permeability is 0, the impedance transformer impedance only basic resistance, the equivalent of the power supply is directly to the negative electrode on a wire, the consequences. In the switching power supply, this phenomenon often occurs in the push-pull topology.

• 2. load short detection.

• Here refers to the load generally refers to the customer product in the transformer output side of other components of damage, short circuit and other reasons.

• 3.layer short circuit.

• Transformer winding insulation is not done, there is inter-turn short circuit or the original side winding short circuit.

• 4. characteristics of some core materials.

• The characteristics of magnetic core materials, such as the design did not consider the influence of dc bias and temperature on the permeability, in the case of high temperature and high dc bias, resulting in transformer winding impedance reduction, overcurrent.