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Use este identificador para citar o enlazar este ítem: http://hdl.handle.net/10651/43829

Título : LCC Resonant Multilevel Converter for X-ray Applications
Autor(es) y otros: Martín Pernía, Alberto
José Prieto, Miguel Ángel
Villegas Saiz, Pedro José
Díaz González, Juan
Martín Ramos, Juan Antonio
Palabras clave: AC/DC converter
Fluoroscopy
High voltage
Multilevel
Radioscopy
Resonant conversion
X-ray
Fecha de publicación : 13-oct-2017
Editorial : MDPI
Versión del editor: http://www.mdpi.com/1996-1073/10/10/1573
Citación : Energies, 1573, p. 1-16 (2017); doi:10.3390/en10101573
Descripción física: p. 1-16
Resumen : Medical X-ray appliances use high-voltage power supplies that must be able to work with very different energy requirements. Two techniques can be distinguished in X-ray medical imaging: fluoroscopy and radioscopy. The former involves low power radiation with a long exposure time, while radioscopy requires large power during short radiographic exposure times. Since the converter has to be designed by taking into account the maximum power specification, it will exhibit a poor efficiency when operating at low power levels. Such a problem can be solved by using a new multilevel LCC topology. This topology is based on a classical series-parallel resonant topology, but includes an additional low-voltage auxiliary transformer whose function depends on the X-ray technique considered. When radioscopy operation is selected, the transformer will allow the power to be shared between two full-bridges. If fluoroscopy mode is activated, the auxiliary full bridge is disconnected and the magnetizing inductance of the auxiliary transformer is used to increase the resonant inductor in order to reduce the resonant currents, thus improving the efficiency of the converter
URI : http://hdl.handle.net/10651/43829
Aparece en las colecciones: Artículos
Ingeniería Eléctrica, Electrónica, de Computadores y Sistemas
Investigaciones y Documentos OpenAIRE

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