DocumentCode
272772
Title
Multilevel PRC-LCC resonant converter for X-ray generation
Author
MartiÌn-Ramos, J.A. ; Pardo-Vaquero, O. ; Villegas, P.J. ; MartiÌnez, J.A. ; PerniÌa, A.M.
Author_Institution
Edificios Dept. Oeste, Univ. de Oviedo, Oviedo, Spain
Volume
51
Issue
15
fYear
2015
fDate
7 23 2015
Firstpage
1189
Lastpage
1191
Abstract
X-ray power supplies must operate under a wide variety of conditions. In fluoroscopy mode, they must transfer from 20 W to 1.2 kW, while in radiography mode they reach up to 100 kW. Input voltage range is also wide: from 400 to 750 V. Designers must achieve full power with lower input voltage, accepting important drops in efficiency under other circumstances. A two-inverter multilevel resonant topology is proposed to address these problems. Adapting the resonant elements, the resulting power stage is versatile enough to minimise the resonant current for both radiography and fluoroscopy. Input voltage fluctuations are compensated by the inverter operations.
Keywords
X-ray apparatus; invertors; radiography; resonant power convertors; X-ray generation; X-ray power supplies; fluoroscopy mode; input voltage fluctuations; multilevel PRC-LCC resonant converter; power 20 W to 1.2 kW; radiography mode; resonant current minimization; resonant elements; two-inverter multilevel resonant topology; voltage 400 V to 750 V;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el.2015.0629
Filename
7163392
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