Review of High-Frequency High-Voltage-Conversion-Ratio DC-DC Converters

• Published in: IEEE journal of emerging and selected topics in industrial electronics (Print) Vol. 2; no. 4; pp. 374 - 389
• Main Authors: Guan, Yueshi, Cecati, Carlo, Alonso, J. Marcos, Zhang, Zhe
• Format: Journal Article
• Language: English
• Published: New York IEEE 01.10.2021; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Capacitive; Capacitors; Conversion; Data centers; Distributed generation; Dynamic response; Electric power supplies; Electric vehicles; High gain; High voltages; high-frequency dc-dc converters; high-voltage-conversion-ratio (HVCR) dc–dc converters; inductive; Inductors; Matrix converters; Power converters; Switches; Topology; Topology optimization; Voltage control; Windings
• ISSN: 2687-9735; 2687-9743
• DOI: 10.1109/JESTIE.2021.3051554

The development of high-frequency power converters is continuously improving their power density, efficiency and fast dynamic response. Among them, high-voltage-conversion-ratio (HVCR) 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, etc. In this article, the current main high-frequency HVCR 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 switched-capacitor-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.