{"title":"两相交错降压变换器数字控制方案的建模与仿真","authors":"Marc Kanzian, M. Agostinelli, M. Huemer","doi":"10.1109/AUSTROCHIP.2016.013","DOIUrl":null,"url":null,"abstract":"The importance of energy-efficient DC voltage conversionis ever increasing. This demands for advanced topologiessuch as time-interleaved multiphase DC-DC converters. Anessential part of such a converter is the control loop, which not only regulates the output voltage, but also balances the currents of the individual phases. In this paper, a small-signal model of a two-phase buck converter is derived, and a linear voltage-mode controller is presented. Further, a current balancing scheme that only requires input current sensing is investigated. Finally, the benefits of a multisampled controller and digital pulse width modulator are highlighted.","PeriodicalId":134390,"journal":{"name":"2016 Austrochip Workshop on Microelectronics (Austrochip)","volume":"25 2 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"7","resultStr":"{\"title\":\"Modeling and Simulation of Digital Control Schemes for Two-Phase Interleaved Buck Converters\",\"authors\":\"Marc Kanzian, M. Agostinelli, M. Huemer\",\"doi\":\"10.1109/AUSTROCHIP.2016.013\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The importance of energy-efficient DC voltage conversionis ever increasing. This demands for advanced topologiessuch as time-interleaved multiphase DC-DC converters. Anessential part of such a converter is the control loop, which not only regulates the output voltage, but also balances the currents of the individual phases. In this paper, a small-signal model of a two-phase buck converter is derived, and a linear voltage-mode controller is presented. Further, a current balancing scheme that only requires input current sensing is investigated. Finally, the benefits of a multisampled controller and digital pulse width modulator are highlighted.\",\"PeriodicalId\":134390,\"journal\":{\"name\":\"2016 Austrochip Workshop on Microelectronics (Austrochip)\",\"volume\":\"25 2 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2016-10-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"7\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2016 Austrochip Workshop on Microelectronics (Austrochip)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/AUSTROCHIP.2016.013\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2016 Austrochip Workshop on Microelectronics (Austrochip)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/AUSTROCHIP.2016.013","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Modeling and Simulation of Digital Control Schemes for Two-Phase Interleaved Buck Converters
The importance of energy-efficient DC voltage conversionis ever increasing. This demands for advanced topologiessuch as time-interleaved multiphase DC-DC converters. Anessential part of such a converter is the control loop, which not only regulates the output voltage, but also balances the currents of the individual phases. In this paper, a small-signal model of a two-phase buck converter is derived, and a linear voltage-mode controller is presented. Further, a current balancing scheme that only requires input current sensing is investigated. Finally, the benefits of a multisampled controller and digital pulse width modulator are highlighted.
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