ERL Transformer

We are the specialized in Super ERL transformer factory High quality ERL transformer apply to PCB and power supply Send your drawing and parameters to customize ERL transformer ERL transformer, the production details that stand up to scrutiny High standard packaging of ERL transformer send to...
Chat Now

Product Details

We are the specialized in Super ERL transformer factory 

Do you know how is the ERL transformer wound? our enigneer department gave you the answer

Two things must be noted to make it well:

  One: each winding should adopt many fine copper wires and be wound together, not 

single thick copper wire, because high frequency ac has skin effect.

The so-called skin effect, simply put, is that high frequency ac only walks along the 

surface of the wire.The inside of the wire does not run current

The weaker the axial current in the wire, the closer it is to the surface of the wire, 

the stronger the current is.The use of multiple strands of thin copper wire and winding 

together, is actually to increase the wire

The surface area of the wire, thereby making it more efficient to use the wire.For example, 

the primary 3T+3T, if you use a single enamelled wire with a diameter of 2.50mm, the 

cut of the wire

Quick Details

Place of origin:Guangdong,China

Brand Name:Feieng

Model Number:ERL35

Usage:All kinds of chargers,stage lig…


Coil Structure:Toroidal

Coil Number:Autotransformer


Magnetic core…ERL

Phase number:Single

Packing deta…Standard export carton… 

Coil structure:Toroidal

Voltage param…DC 12V,AC 110V,or customer…



Working freque…20KHz-500KHz

Storage temper…­25℃to+85℃

Packaging &Delivery

Packaging Details

Standard export carton

Delivery Time

5-7 working days after payment confirmed

High quality ERL transformer apply to PCB and power supply ,auto isolation transformer,  auto power transformer,automatic high frequency transformer,bakelite bobbin transformer,ballast transformer,battery charger transformer etc



Why does the air gap store most of the ERL transformer's energy?
Simply put, the reluctance of the air gap is much larger than that of the core, so that most of the magnetomotive force falls on the air gap, which is inversely proportional to the flux density.

The filling material at the air gap must be demagnetically magnetic, otherwise it may cause short circuit in the air gap and fail to achieve the original purpose of opening the air gap. It is necessary to keep the structural balance to minimize the magnetic flux noise。



ERL transformer manufacturing process: winding to determine the parameters of the skeleton, all winding requirements flat without overlapping as the principle, a single group of winding monochrome line can be, two groups of winding must be two color line or grade dip paint to foot position, so as to avoid wrong winding, across the line must be taped isolation





Working principle of high-frequency transformer: transformer is a device that transforms ac voltage, current and impedance. When the primary coil is filled with ac current, ac flux will be generated in the iron core (or magnetic core) to induce voltage (or current) in the secondary coil.

The transformer is composed of an iron core (or a magnetic core) and a coil, which has two or more windings. The windings connected only to the power supply are called primary windings, and the rest are called secondary windings.