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Thermal-Electrical Modeling and Simulation of Resonantly Operated DC-DC Converters Based on Extended Describing Function Method
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| Author(s) |
Zhiyu CAO, Jianxun LV, Norbert FROEHLEKE, Joachim BOECKER, Haiwen YUAN |
| Abstract |
Due to the very large difference between electrical and thermal time constants, stimulation forresonantly operated DC-DC converters using physical or ideal switching model is very time-consumingor impossible with limited computational resources. In order to overcome this problem a novelthermal-electrical averaging model of resonantly operated DC-DC converters is proposed in thiscontribution. The electrical model is based on extended describing function method. All requiredparameters for the thermal model can be obtained from datasheets. As examples thermal-electricalmodels of series-parallel resonant converters with LC- and C-type output filters are given and verifiedby comparison with a standard simulation tool. The thermal-electrical modeling procedure proposed inthis contribution can of course also be applied for other types of resonant converters. |
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| Filename: | 0307-epe2011-full-15070090.pdf |
| Filesize: | 1.467 MB |
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| Type |
Members Only |
| Date |
Last modified 2012-01-26 by System |
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