Why do high-frequency transformers above megahertz prefer to use braided Leeds wires

High frequency transformers play a very important role in industrial production and communication equipment, as they can convert voltage to a level suitable for equipment use. When designing high-frequency transformers, using braided Leeds wires is a common choice.

Braided Litz wire, also known as Litz wire, is a type of wire made by weaving multiple strands of small wires. This type of wire has good conductivity and electromagnetic shielding effect in high-frequency electromagnetic fields, and is suitable for use in high-frequency circuits. There are several main reasons for using braided Leeds wires in high-frequency transformers:

Firstly, woven Leeds wire has excellent electrical conductivity. In high-frequency circuits, current mainly flows along the surface of the wires, while Leeds wires are composed of multiple small wires, which can reduce AC resistance and improve the conductivity of the wires. This can reduce the loss of wires and improve the efficiency of transformers.

Secondly, weaving Leeds wire has a good electromagnetic shielding effect. There is strong electromagnetic radiation in high-frequency circuits, and the braided Leeds wire is composed of multiple interlaced wires, forming many circular current circuits, which can effectively suppress electromagnetic wave radiation and reduce interference. This is crucial for ensuring the stability and reliability of high-frequency transformers.

In addition, woven Leeds thread also has good wear resistance and flexibility. Due to the frequent bending and movement of wires in high-frequency transformers, braided Leeds wires are composed of multiple small wires with high flexibility, which can better adapt to the structure and working environment of transformers and extend their service life.

In summary, high-frequency transformers prefer to use braided Leeds wires in their design mainly because they have excellent conductivity, electromagnetic shielding effect, wear resistance, and flexibility, which can improve the efficiency and stability of transformers and ensure the normal operation of equipment. Therefore, for the design and manufacturing of high-frequency transformers, choosing the appropriate braided Leeds wire is very important.