{"title":"Fast transient response of two-stage DC-DC converter with low-voltage/high-current output","authors":"S. Abe, J. Yamamoto, T. Zaitsu, T. Ninomiya","doi":"10.1109/ISIE.2003.1267285","DOIUrl":null,"url":null,"abstract":"This paper presents the fast transient response improvement of two-stage DC-DC converter by using the current feedback control. The two-stage converter consists of a buck converter used as the first-stage and a half-bridge converter used as the second-stage. The proposed control system using the first-stage inductor current and the conventional voltage-feedback control system are analyzed and compared. As a result, it is analytically clarified that the crossover frequency becomes higher by adding the first-stage inductor current in the feedback control loop. The experimental confirmation was obtained with a good agreement, and the effectiveness of the proposed control strategy was verified.","PeriodicalId":166431,"journal":{"name":"2003 IEEE International Symposium on Industrial Electronics ( Cat. No.03TH8692)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2003-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"7","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2003 IEEE International Symposium on Industrial Electronics ( Cat. No.03TH8692)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ISIE.2003.1267285","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 7
Abstract
This paper presents the fast transient response improvement of two-stage DC-DC converter by using the current feedback control. The two-stage converter consists of a buck converter used as the first-stage and a half-bridge converter used as the second-stage. The proposed control system using the first-stage inductor current and the conventional voltage-feedback control system are analyzed and compared. As a result, it is analytically clarified that the crossover frequency becomes higher by adding the first-stage inductor current in the feedback control loop. The experimental confirmation was obtained with a good agreement, and the effectiveness of the proposed control strategy was verified.
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