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Selection of Power Filters for Switched Mode Power Supplies
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| Author(s) |
K. S. Kostov; J. P. Sjöroos; J. Kyyrä; T. Suntio |
| Abstract |
Power filter manufacturers provide Insertion Loss (IL) measurement data for their products. These are usually 50 §Ù / 50 §Ù and sometimes the so-called ¡°approximate worst case measurements¡±. The aim of this work is to find out which of these data should be considered when selecting an input filter for a switched mode power supply. The results show that, the actual common mode attenuation of a filter operating with a buck converter is almost same as the IL data with 0.1 §Ù / 100 §Ù source and load impedance, whereas the actual differential mode IL is approximately same as the IL data for 100 §Ù / 0.1 §Ù conditions. |
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| Filename: | Unnamed file |
| Filesize: | 900.6 KB |
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| Type |
Members Only |
| Date |
Last modified 2006-01-23 by System |
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