| Abstract |
In switched mode power supplies, wound ferrite cores fulfill important functions such as output transformers, smoothing chokes and noise suppression filters which permit to afford regulated output power from different sources, even noisy ones, and also to gain on efficiency, weight, volume and cost of the converters. Depending on its type, its throughput power and the frequency at which it operates, different materials in different core shapes are needed. After summarizing the main types of cores, the main characteristics and the trends in materials are given. |
