What are the advantages of Planar transformer?

What are the advantages of Planar transformer

Everyone wants to make the flat transformer smaller and more efficient. The advantages of the flat transformer are that it has higher power density and better heat dissipation than the traditional one. It has been widely used in DC-DC and is being developed by enterprises of all sizes! AC-DC is also in great demand now. In short, we need to be small!

As we all know, transformer has always been a hindrance to power supply equipment and devices, reducing volume, improving power density and realizing modularization. Although the introduction of high-frequency conversion technology into the power supply can get rid of the huge power frequency transformer, the ferrite core high-frequency transformer is also needed. Although the volume of ferrite core high-frequency transformer is smaller than that of power frequency transformer, it is far from the requirements of modularization. It is not only bulky, but also has a large heat output and electric leakage. Therefore, in recent years, many experts, scholars and engineers have been studying ways to solve this problem. The successful development of high frequency flat transformer makes a leap in transformer technology. It can not only reduce the volume of the transformer a lot, but also make the temperature rise inside the transformer very low, the leakage inductance very small, the efficiency can reach 99.6%, and the cost is half lower than that of ordinary transformers of the same power. It can be used as AC/DC and DC/DC converters in single ended forward, flyback, half bridge, full bridge and push-pull converters. It is especially suitable for low voltage and high current converters.

Therefore, it is particularly suitable to use it as a power supply for modern computers

Compared with traditional transformers, planar transformers have the following characteristics:

(1) High current density. The conductors of planar transformers are actually planar conductors, so the current density is high.

(2) High efficiency. The efficiency can reach 98%~99%.

(3) Low leakage sense. It is about 0.2% of the primary inductance.

(4) Good heat conduction. The distance of hot channel is short and the temperature rise is low.

(5) Low EMI radiation. Good core shielding can reduce the radiation to a very low level.

(6) Small size. The small magnetic core can reduce the volume accordingly.

(7) The parameters have good repeatability. Because the winding structure is fixed and pre processed, the parameters are stable.

(8) Wide operating frequency range. The frequency can range from 50 kHz to 2 MHz.

(9) Wide operating temperature range. The working temperature is - 40 ℃~130 ℃.

(10) Good insulation. The plane transformer is composed of conductive circuit and insulating sheet overlapping each other, so as to ensure 4 kV insulation isolation between windings, primary secondary and secondary secondary.

The R&D team of Shaanxi Gold-Stone electronics .co ltd independently develops planar transformer inductor products, which is at the leading level in China. The product range is from 30W-20kW, covering all Israeli PAYTON and American PULSE products.

There are hundreds of mature power module product solution libraries available for military and industrial users.

It can also be specially designed and customized according to your requirements.
Please contact us sales@gsmagnetics.com. Helen.Liu@gsmagnetics.com