{"title":"具有开启ZCS能力的1mhz升压DC-DC变换器以降低EMI","authors":"H. Yoshioka, J. Furuta, Kazutoshi Kobayashi","doi":"10.1109/WiPDAAsia49671.2020.9360268","DOIUrl":null,"url":null,"abstract":"This paper proposes a boost DC-DC converter with turn-on zero current switching (ZCS) capability to suppress electromagnetic interference (EMI) generated from an output diode. When a switching component turn on, reverse current flows from the output diode. In SiC-SBD, reverse recovery time is very short and conduction loss is small, but noise is increased by switching speed over MHz. By operating in discontinuous current mode, noise at turn-on can be reduced. However, at high frequency over MHz, the conduction loss increases because peak current flowing through the switching component and inductor increases. Radiated EMI of the boost DC-DC converter is reduced by the ZCS soft switching at turn on operating in the continuous current mode. Measurement results of EMI of the ZCS DC-DC converter were presented to confirm EMI suppression from the ZCS operation.","PeriodicalId":432666,"journal":{"name":"2020 IEEE Workshop on Wide Bandgap Power Devices and Applications in Asia (WiPDA Asia)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2020-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"A 1 MHz Boost DC-DC Converter with Turn on ZCS Capability to Reduce EMI\",\"authors\":\"H. Yoshioka, J. Furuta, Kazutoshi Kobayashi\",\"doi\":\"10.1109/WiPDAAsia49671.2020.9360268\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"This paper proposes a boost DC-DC converter with turn-on zero current switching (ZCS) capability to suppress electromagnetic interference (EMI) generated from an output diode. When a switching component turn on, reverse current flows from the output diode. In SiC-SBD, reverse recovery time is very short and conduction loss is small, but noise is increased by switching speed over MHz. By operating in discontinuous current mode, noise at turn-on can be reduced. However, at high frequency over MHz, the conduction loss increases because peak current flowing through the switching component and inductor increases. Radiated EMI of the boost DC-DC converter is reduced by the ZCS soft switching at turn on operating in the continuous current mode. Measurement results of EMI of the ZCS DC-DC converter were presented to confirm EMI suppression from the ZCS operation.\",\"PeriodicalId\":432666,\"journal\":{\"name\":\"2020 IEEE Workshop on Wide Bandgap Power Devices and Applications in Asia (WiPDA Asia)\",\"volume\":\"1 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2020-09-23\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2020 IEEE Workshop on Wide Bandgap Power Devices and Applications in Asia (WiPDA Asia)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/WiPDAAsia49671.2020.9360268\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2020 IEEE Workshop on Wide Bandgap Power Devices and Applications in Asia (WiPDA Asia)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/WiPDAAsia49671.2020.9360268","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
A 1 MHz Boost DC-DC Converter with Turn on ZCS Capability to Reduce EMI
This paper proposes a boost DC-DC converter with turn-on zero current switching (ZCS) capability to suppress electromagnetic interference (EMI) generated from an output diode. When a switching component turn on, reverse current flows from the output diode. In SiC-SBD, reverse recovery time is very short and conduction loss is small, but noise is increased by switching speed over MHz. By operating in discontinuous current mode, noise at turn-on can be reduced. However, at high frequency over MHz, the conduction loss increases because peak current flowing through the switching component and inductor increases. Radiated EMI of the boost DC-DC converter is reduced by the ZCS soft switching at turn on operating in the continuous current mode. Measurement results of EMI of the ZCS DC-DC converter were presented to confirm EMI suppression from the ZCS operation.
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