Nanocrystalline Cores for Energy Switching

Tough problems have been solved when ferrite cores were replaced by nanocrystalline soft magnetic cores. (1) Noise In the process of working with electrical appliances, noise is mainly generated in the following two aspects: 1. Due to the magnetostriction index of the raw material itself, such as ferrite, noise always occurs in the application. And because of the different composition of nanocrystalline, the magnetostriction index is also different. For example, as the output transformer, voltage transformer,  common-mode f ilter , etc., the use of iron-based nanocrystalline ribbons reduces the magnetostrictive index. According to customer applications, the noise problem has been greatly improved. 2. The problem at the rectifier circuit level, the direct current in the power supply circuit causes the magnetic induction intensity of the transformer core to increase, thereby causing the noise. Tests have proved that noise is directly proportional to the intensity of magnetic inductio...

  How Common Mode Chokes (CMC) Work Let's study the function and operation of common-mode chokes and how to reduce unnecessary interference. Differential interference First, we study differential interference. For differential interference, and for any signal transmitted from the line side, there should be equal returns on the neutral side. Anything that passes through the neutral point (bottom surface) from the line (or top surface) should be crossed off. But the reality is that if there is equal signal cancellation, you won't get any unnecessary noise in differential mode. Differential noise occurs when these types of transmissions are unbalanced and canceled. Common mode noise In the case of common-mode noise, noise enters and releases simultaneously from the two input sides (line and neutral), but it also couples back to the ground. All that needs to be done is to capture harmful noise and prevent it from spreading back to the ground. Therefore, it is necessary to capture t...