Small-Signal Modeling of Phase-Shifted Full-Bridge Converter Considering the Delay Associated to the Leakage Inductance
This paper demonstrates that in the Phase-Shifted Full-Bridge (PSFB) buck-derived converter, there is a random delay associated with the blanking time produced by the leakage inductance. This random delay predicts the additional phase drop that is present in the frequency response of the open-loop a...
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MDPI AG
2021
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oai:doaj.org-article:e9b03f9f2a6b4b2c85a020dfd83844302021-11-11T16:01:52ZSmall-Signal Modeling of Phase-Shifted Full-Bridge Converter Considering the Delay Associated to the Leakage Inductance10.3390/en142172801996-1073https://doaj.org/article/e9b03f9f2a6b4b2c85a020dfd83844302021-11-01T00:00:00Zhttps://www.mdpi.com/1996-1073/14/21/7280https://doaj.org/toc/1996-1073This paper demonstrates that in the Phase-Shifted Full-Bridge (PSFB) buck-derived converter, there is a random delay associated with the blanking time produced by the leakage inductance. This random delay predicts the additional phase drop that is present in the frequency response of the open-loop audio-susceptibility transfer function when the converter shows a significant blanking time. The existing models of the PSFB converter do not contemplate the delay and gain differences associated to voltage drop produced in the leakage inductor of the transformer. The small-signal model proposed in this paper is based on the combination of two types of analysis: the first analysis consists of obtaining a small-signal model using the average modeling technique and the second analysis consists of studying the natural response of the power converter. The dynamic modeling of the Phase-Shifted Full-Bridge converter, including the random delay, has been validated by simulations and experimental test.Diego OchoaAntonio LázaroPablo ZumelMarina SanzJorge Rodriguez de FrutosAndrés BarradoMDPI AGarticlesmall-signal modelphase-shifted full-bridge converterDC-DC power conversionzero-voltage-switchinginjected-absorbed-current methodTechnologyTENEnergies, Vol 14, Iss 7280, p 7280 (2021) |
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DOAJ |
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DOAJ |
| language |
EN |
| topic |
small-signal model phase-shifted full-bridge converter DC-DC power conversion zero-voltage-switching injected-absorbed-current method Technology T |
| spellingShingle |
small-signal model phase-shifted full-bridge converter DC-DC power conversion zero-voltage-switching injected-absorbed-current method Technology T Diego Ochoa Antonio Lázaro Pablo Zumel Marina Sanz Jorge Rodriguez de Frutos Andrés Barrado Small-Signal Modeling of Phase-Shifted Full-Bridge Converter Considering the Delay Associated to the Leakage Inductance |
| description |
This paper demonstrates that in the Phase-Shifted Full-Bridge (PSFB) buck-derived converter, there is a random delay associated with the blanking time produced by the leakage inductance. This random delay predicts the additional phase drop that is present in the frequency response of the open-loop audio-susceptibility transfer function when the converter shows a significant blanking time. The existing models of the PSFB converter do not contemplate the delay and gain differences associated to voltage drop produced in the leakage inductor of the transformer. The small-signal model proposed in this paper is based on the combination of two types of analysis: the first analysis consists of obtaining a small-signal model using the average modeling technique and the second analysis consists of studying the natural response of the power converter. The dynamic modeling of the Phase-Shifted Full-Bridge converter, including the random delay, has been validated by simulations and experimental test. |
| format |
article |
| author |
Diego Ochoa Antonio Lázaro Pablo Zumel Marina Sanz Jorge Rodriguez de Frutos Andrés Barrado |
| author_facet |
Diego Ochoa Antonio Lázaro Pablo Zumel Marina Sanz Jorge Rodriguez de Frutos Andrés Barrado |
| author_sort |
Diego Ochoa |
| title |
Small-Signal Modeling of Phase-Shifted Full-Bridge Converter Considering the Delay Associated to the Leakage Inductance |
| title_short |
Small-Signal Modeling of Phase-Shifted Full-Bridge Converter Considering the Delay Associated to the Leakage Inductance |
| title_full |
Small-Signal Modeling of Phase-Shifted Full-Bridge Converter Considering the Delay Associated to the Leakage Inductance |
| title_fullStr |
Small-Signal Modeling of Phase-Shifted Full-Bridge Converter Considering the Delay Associated to the Leakage Inductance |
| title_full_unstemmed |
Small-Signal Modeling of Phase-Shifted Full-Bridge Converter Considering the Delay Associated to the Leakage Inductance |
| title_sort |
small-signal modeling of phase-shifted full-bridge converter considering the delay associated to the leakage inductance |
| publisher |
MDPI AG |
| publishDate |
2021 |
| url |
https://doaj.org/article/e9b03f9f2a6b4b2c85a020dfd8384430 |
| work_keys_str_mv |
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