Abstract
The development of high-frequency power converters is continuously improving their power density, efficiency and fast dynamic response. Among them, highvoltage-conversion-ratio dc-dc converters are widely used in high gain, i.e. step-up/-down or bidirectional applications, such as power supply for data center, dc micro-grids, electrical vehicle charging systems and so on. In this article, the current main high-frequency high-voltage-conversionratio dc-dc converters are classified into inductive-based and capacitive-based approaches, which can then be described further by four kinds in detail, namely transformer-based, coupled-inductor-based, and switchedcapacitor-based, as well as combination of coupled inductor and switched capacitor. A comprehensive analysis and comparison is given, which can provide guidance for proper topology selection and further topology optimization.
Original language | English |
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Journal | IEEE Journal of Emerging and Selected Topics in Industrial Electronics |
Volume | 2 |
Issue number | 4 |
Pages (from-to) | 374 - 389 |
ISSN | 2687-9735 |
DOIs | |
Publication status | Published - 2021 |
Keywords
- High-frequency dc-dc converters
- High voltage-conversion-ratio dc-dc converters
- Inductive
- Capacitive