The difference between high frequency and low frequency transformers

First, high-frequency transformer: the working frequency exceeds the intermediate frequency (10kHz) of the power transformer. Mainly used for high frequency switching power supply transformer, also used for high frequency inverter power supply and high frequency inverter welding machine for high frequency inverter power transformer.

Two, low frequency transformer:

1, the ordinary transformer is used to change the voltage (current, impedance), is to transfer electrical energy, it is composed of a primary coil, one to several secondary coils and iron core (high frequency, commonly used hollow coil).

2, low frequency transformer: mainly used for low frequency switching power transformer, audio transformer, home appliance speaker equipment, security monitoring equipment, broadcast system, solar wind energy.

Three, the difference between high-frequency transformer and low-frequency transformer:

1. High frequency transformer and low frequency transformer are not distinguished in principle.

2, high frequency transformer and low frequency transformer in high frequency and low frequency is different.

3. The iron cores used by the two kinds of transformers are different:

Low frequency transformer usually uses high permeability silicon steel sheet;

High frequency transformer uses high frequency ferrite core.

4, the number of high-frequency transformer and low-frequency transformer coil is different:

The same inductance, high frequency transformer with the increase of frequency inductance slowly increase, in order to comply with high frequency transmission, the transformer must be less turn to comply with the frequency, or even wound into a hollow coil. Microwave transmission, some around 3/4 circle or 1/2 circle.

Ordinary transformer because it is power frequency, must rely on the magnetic flux of the iron core for voltage transformation, because the magnetic flux can not be too full, must be wound by every volt/turn coil, in order to make it in the best state, and high frequency transformer with its radiation ability to induction secondary.

Shenzhen YLZ Technology Co., Ltd. specializes in the design and production of various types of high-frequency transformer, low-frequency (pulse, isolation) transformer, inductor coil.