Unicreed Blog

Among the transformer losses there are iron losses, copper losses, hysteresis losses, eddy current losses, stray losses, dielectric losses, and other types of losses. In transformers, hysteresis losses are caused by changes in the magnetic field of the transformer core, whereas copper losses are caused by the resistance of the transformer windings.

How do you judge if the quality of a high frequency transformer is good or not when you buy one?You can easily get it by following the following 3 steps:

Transformers with high frequency exceeding the intermediate frequency (10 kHz) can be used in high-frequency switching power supplies as high-frequency switching power supply transformers.

A transformer’s primary winding generates magnetic flux, which flows in the iron core. Since the iron core is also a conductor, an electric potential is established on the plane perpendicular to the magnetic field lines, resulting in the creation of an “eddy current”.

Transformers convert one AC voltage to another without changing the frequency. One or more coils are wound on a common ferromagnetic core, and are not electrically connected but are connected by a common magnetic flux.

In an ideal transformer, the output power is equal to the input power. There is no loss of power within this transformer due to its 100% efficiency. This type of transformer is impossible to exist in practice, but the ideal transformer model makes the problem easier to solve compared with the practical transformer model.

A major difference between a forward high-frequency transformer and a flyback high-frequency transformer lies in the fact that the forward transformer does not require any air gaps, and it is also required to have a large inductance. Primary side current also flows through the forward transformer, but this current is not induced by the secondary side inductance, but is stored by the input voltage.

HF is abbreviation for high frequency. High-frequency transformer is a power transformer whose operating frequency exceeds the intermediate frequency (10 kHz).

Transformers change the current and voltage in a circuit. Voltage can be increased or decreased using transformers. Energy is lost during the transmission of electricity over long distances, such as from a power plant to your home.Long-distance transmission lines use high voltage because it loses less energy. It should be noted, however, that this high voltage is too dangerous for domestic use.

The method of judging if a transformer has a fault can be divided into two categories: intuitive judgment and analysis judgment. Intuitive judgments can be made about the transformer fault based on the aspects of sound, smell, color, and temperature.