Bidirectional Switched Capacitor DC-DC Converter Based on Three Level Connection

In this paper a pure bidirectional switched capacitor DC-DC converter is proposed. This structure of the proposed converter allows parallel and cascade modular connection, which allows its use in different applications. The basic cell of the proposed topology is evaluated in detail in this paper. Fo...

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Detalles Bibliográficos
Autores: Nachau, Wellington Arthur Licht, Vargas, Diogo Ribeiro, Koch, Gustavo Guilherme, Andrade, Antonio Manuel Santos Spencer
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2024
País:Brasil
Institución:Associação Brasileira de Eletrônica de Potência (SOBRAEP)
Repositorio:Eletrônica de Potência (Online)
Idioma:inglés
OAI Identifier:oai:ojs2.journal.sobraep.org.br:article/930
Acceso en línea:https://journal.sobraep.org.br/index.php/rep/article/view/930
Access Level:acceso abierto
Palabra clave:Bidirectional current flow
dc-dc converter
modular circuit
switched capacitor
Descripción
Sumario:In this paper a pure bidirectional switched capacitor DC-DC converter is proposed. This structure of the proposed converter allows parallel and cascade modular connection, which allows its use in different applications. The basic cell of the proposed topology is evaluated in detail in this paper. For this, characteristics of the principle of operation for step-up and step-down mode, voltage gain, voltage and current stresses, comparative evaluations with similar topologies are presented. To validate the effectiveness of the proposed converter, a prototype was built in laboratory and it achieves a 94.8 % peak efficiency with a switching frequency equal to 20 kHz.