LVDC SiC MOSFET Analog Electronic Fuse With Self-Adjusting Tripping Time Depending on Overcurrent Condition
This article deals with the design of an electronic fuse for 380 V dc distribution systems. It has been devised for applications that require current limitation up to 3 A, so approximately 1.2 kW. To protect the main semiconductor against excessive energy dissipation, the tripping time, defined as t...
| Autores: | , , |
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| Formato: | artículo |
| Fecha de publicación: | 2022 |
| País: | España |
| Recursos: | Universidad Miguel Hernández de Elche |
| Repositorio: | REDIUMH. Depósito Digital de la UMH |
| OAI Identifier: | oai:dspace.umh.es:11000/37993 |
| Acesso em linha: | https://hdl.handle.net/11000/37993 |
| Access Level: | acceso abierto |
| Palavra-chave: | circuit faults MOSFET fuses resistors circuit breakers sensors silicon carbide CDU::6 - Ciencias aplicadas::62 - Ingeniería. Tecnología CDU::6 - Ciencias aplicadas::62 - Ingeniería. Tecnología::621 - Ingeniería mecánica en general. Tecnología nuclear. Electrotecnia. Maquinaria::621.3 - Ingeniería eléctrica. Electrotecnia. Telecomunicaciones |
| Resumo: | This article deals with the design of an electronic fuse for 380 V dc distribution systems. It has been devised for applications that require current limitation up to 3 A, so approximately 1.2 kW. To protect the main semiconductor against excessive energy dissipation, the tripping time, defined as the time that circuit operates in current-limitation mode, varies with the current fault magnitude, and eventually for very hard fault conditions, i.e., short-circuit, the circuit acts as a circuit-breaker avoiding current-limitation operation. Furthermore, thermal foldback characteristic, defined as the variation of current limitation setpoint with temperature, and tripping time variation with temperature are also considered. Mathematical analysis, circuit design, simulations, and experimental validation have been carried out using a SiC MOSFET as power semiconductor. Experimental results working under different conditions show an excellent performance. |
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