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Erschienen in:

2020 | OriginalPaper | Buchkapitel

8. An Isolated Micro-converter Utilizing Fixed-Frequency BCM Control Method for PV Applications

verfasst von : Zhiqiang Guo, Deshang Sha

Erschienen in: New Topologies and Modulation Schemes for Soft-Switching Isolated DC–DC Converters

Verlag: Springer Singapore

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Abstract

This chapter introduces a BCM controlled micro-converter for PV application in order to provide high conversion efficiency over a wide input voltage operating range. Within the wide input range for the PV panel, there is no need to change the operating modes according to the PV panel voltage. The leakage inductor current can work in boundary conduction mode with fixed switching frequency. The operation mode analysis is given first. Then the operating principle of the boundary conduction mode and its implementation are introduced. Loss breakdown of the prototype using GaN devices is analyzed and compared with same voltage rating silicon MOSFETs. A 300 W micro-converter was fabricated and experimental results are provided to verify the effectiveness of the presented BCM control.

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Titel: An Isolated Micro-converter Utilizing Fixed-Frequency BCM Control Method for PV Applications
verfasst von: Zhiqiang Guo
Deshang Sha
Verlag: Springer Singapore
Buch: New Topologies and Modulation Schemes for Soft-Switching Isolated DC–DC Converters
Print ISBN: 978-981-329-933-7

Electronic ISBN: 978-981-329-934-4

Copyright-Jahr: 2020
DOI: https://doi.org/10.1007/978-981-32-9934-4_8