• November 17. 2022

The planar transformer is special designed for low profile & low loss but high power application. Compared with traditional toroidal transformer, laminated core transformer, etc., the planar transformer can be through-hole mounted to the board, or can be integrated into PCB directly , thus the low-profile transformer that could handle a range of current values work. A PCB with traces...

• May 21. 2024

In switching power supplies, there are two common types of noise: common mode noise and differential mode noise. The noise with the same path as the input signal is called differential mode noise, while the noise from ground to output with the same phase is called common mode noise. Common mode inductance can suppress common mode noise and improve signal quality through filtering. As for power lin...

• June 04. 2024

PFC inductors are widely used in switching power supplies because they improve power factor, power efficiency, electromagnetic interference, and greatly enhance circuit stability.   The working principle of PFC inductor is that when the current passes through it, the magnetic field generated will reduce the rate of change of the current, thereby reducing high-order harmonics in the circuit, s...

• June 19. 2024

For the transformer and inductors, we always test Q value. While, what's Q value?What factors are it related to? Q value, as know as  quality factor, its basic meaning refers to the ratio of inductance to loss pressented by a transformer (inductor) when operating at a certain frequency of AC voltage, it is an important parameter for measuring the transformers and inductors. The higher Q value...

• July 05. 2024

The planar core's successful development, a planar transformer (inductor) design was realized. Comparing to traditional transformer, the planar transformer (inductor) winding is a planar structure, have priority including: high current density, high efficiency, low leakage inductance, excellent heat conduction, low EMI radiation, small size, The pa...

• July 18. 2024

Currently, in the field of soft magnetic materials, soft metal magnetic powder core is the material with the best comprehensive performance , which is made by pressing and sintering magnetic powder bonded by polymer adhesive. The soft metal magnetic powder core made by high saturation magnetic induction intensity alloy particles powder, those particle insulation layer is wrapped to ...

• July 25. 2024

As usual, the transformer with a higher Q value, the better its quality and efficiency. Well, what should we do if the transformer's Q value is too low? What are the factors that lead to a low Q value? As we know: Q=XL/R=2 π fL/R, where XL is the inductance, R is the loss, and f is the operating frequency. The greater the loss, the smaller the Q value will be. For example, if there is a short circ...

• September 12. 2024

Inductive Power Transfer Transformer, also known as an inductive transformer, is a device that uses the principle of electromagnetic induction to transfer electrical energy. It is mainly used in application scenarios that require wireless or contactless power transmission. working principle Electromagnetic induction: Induction power transformers transfer energy through electromagnetic induction be...