Technical Knowledge

Toroidal cores offer higher efficiency, smaller size, lower EMI, quieter operation and better heat dissipation than traditional EI cores, ideal for high‑end electronics, medical and audio devices.

In the power transmission system, transformer is the core equipment, and its performance is related to the stability and efficiency of power supply. As a key component of the transformer, the design of the core has a significant impact on its operational efficiency, temperature rise and life span. In the early days, transformers used solid iron cores, which had serious heat generation and energy consumption problems. With the development of technology, laminated iron core has become the mainstream choice to improve the performance of transformers because it can effectively suppress eddy current loss.

Discover the main types of transformer cores — from laminated silicon steel to ferrite, toroidal, and amorphous cores — and learn how to choose the right one for your application.