{"title":"面向设计的PFM控制DC/DC降压变换器数学模型","authors":"A. Facen, M. Tonelli, A. Boni","doi":"10.1109/ICECS.2008.4674888","DOIUrl":null,"url":null,"abstract":"A design-oriented mathematical model for integrated DC/DC buck converters is presented in this paper. The analysis takes into account the main conduction power loss due to the switches channel resistance in on-state and, starting from the efficiency specification and other constraints, sets the guidelines for the sizing of the output power stage of the DC/DC converter. The model also considers the design of the driver stages, calculates the switching power loss and adjusts the efficiency to obtain the effective value. A CMOS DC/DC converter with Pulse Frequency Modulation (PFM) control in Discontinuous Conduction Mode (DCM) has been designed following such a criteria, validating the accuracy of the model in different loading conditions.","PeriodicalId":404629,"journal":{"name":"2008 15th IEEE International Conference on Electronics, Circuits and Systems","volume":"96 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2008-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":"{\"title\":\"A design-oriented mathematical model for DC/DC buck converters with PFM control\",\"authors\":\"A. Facen, M. Tonelli, A. Boni\",\"doi\":\"10.1109/ICECS.2008.4674888\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"A design-oriented mathematical model for integrated DC/DC buck converters is presented in this paper. The analysis takes into account the main conduction power loss due to the switches channel resistance in on-state and, starting from the efficiency specification and other constraints, sets the guidelines for the sizing of the output power stage of the DC/DC converter. The model also considers the design of the driver stages, calculates the switching power loss and adjusts the efficiency to obtain the effective value. A CMOS DC/DC converter with Pulse Frequency Modulation (PFM) control in Discontinuous Conduction Mode (DCM) has been designed following such a criteria, validating the accuracy of the model in different loading conditions.\",\"PeriodicalId\":404629,\"journal\":{\"name\":\"2008 15th IEEE International Conference on Electronics, Circuits and Systems\",\"volume\":\"96 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2008-11-17\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"1\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2008 15th IEEE International Conference on Electronics, Circuits and Systems\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/ICECS.2008.4674888\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2008 15th IEEE International Conference on Electronics, Circuits and Systems","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ICECS.2008.4674888","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
A design-oriented mathematical model for DC/DC buck converters with PFM control
A design-oriented mathematical model for integrated DC/DC buck converters is presented in this paper. The analysis takes into account the main conduction power loss due to the switches channel resistance in on-state and, starting from the efficiency specification and other constraints, sets the guidelines for the sizing of the output power stage of the DC/DC converter. The model also considers the design of the driver stages, calculates the switching power loss and adjusts the efficiency to obtain the effective value. A CMOS DC/DC converter with Pulse Frequency Modulation (PFM) control in Discontinuous Conduction Mode (DCM) has been designed following such a criteria, validating the accuracy of the model in different loading conditions.
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