EI High Frequency Transformer

High-frequency power transformer is a power transformer whose working frequency exceeds the intermediate frequency (10kHz). It is mainly used as the high-frequency switching power transformer in the high-frequency switching power supply, as well as the high-frequency inverter power supply transformer in the high-frequency inverter power supply and the high-frequency inverter welding machine
Chat Now

Product Details

Super EI high frequency transformer with high quality

High frequency transformer operating mode as below

AC to ac: such as an ac transformer in a substation. The transformer has two sets of coils. Primary and secondary coils. The secondary coil is outside the primary coil. When the primary coil is connected with alternating current, the transformer core generates an alternating magnetic field, and the secondary coil generates an induced electromotive force. The ratio of turns of the transformer coil is equal to the voltage ratio. For example, the primary is 500 turns, the secondary is 250 turns, the primary is 220V ac, and the secondary voltage is 110V. Transformers can reduce or boost the voltage.

AC to dc: for example, the charger of the mobile phone is actually ac to ac, the voltage is reduced, and then the alternating current is changed into direct current through the filter circuit.

DC to ac: for example, a UPS backup power supply for some equipment requires an electronic component to convert direct current to alternating current and then a transformer to change the voltage. This device is called an inverter. It is composed of inverter bridge, control logic and filter circuit. Common such as: solar power generation, is the point-type dc to ac case.

Quick Details

Place of origin:Guangdong,China

Brand Name:Feleng

Model Number:EE35

Usage:High Frequency


Coil Structure:Toroidal,Toroidal

Coil Number:Autotransformer,Autotransfor

Name:electronic high frequency trans…






Operating temp…-40℃+125℃

Business:Manufactures diect supply

Packaging &Delivery

Packaging Details

Standard export carton

Delivery Time

Within 5-7

Main heating components in the switching power supply for high frequency transformer power diode semiconductor switch tube filter inductance and different components have different way to control the heat power tube is one of the calorific value larger device in the high frequency switch power supply, reduce its calorific value, not only can improve the reliability of power tube, but also can improve the reliability of switch power supply, improve MTBF (MTBF) of the switch tube heat is caused by the loss, the wastage of the switch tube by the switching process loss and loss of state of two parts, reduce the loss of state can choose low resistance of the switch tube to reduce the loss of state;Switching process loss is caused by the switching time and the size of gate charge, reduce the loss of switch process can choose switch faster recovery time shorter device to reduce but more important is through the design more optimal control method, and buffer technology to reduce the loss, such as the soft switch technology, can greatly reduce the loss of reducing power diode calorific value, the ac rectifier and buffer diode, usually don't have a better control technology to reduce wear and tear, can be reduced by selecting high quality diode loss for rectifier transformer secondary side can choose efficient synchronous rectifier technology to reduce the lossFor losses caused by high-frequency magnetic materials, skin effect should be avoided as far as possible. For the effect caused by skin effect, multiple thin enameled wires can be wound together to solve the problem.




high-efficiency process of management for EI high frequency  transformer   


The packed transformer is stable and the stitching is oxidation proof

Ask :Why the High frequency transformer easy to stick to the paper after packaging ?

Answer: Some high-frequency transformers need to dip paint, some are drying, some are natural drying, due to the need is large, so a lot of time is not completely dry on the box, so it will stick to the cardboard.