{"title":"用于高频交错多相DC/DC变换器的异磁耦合电感(HMCI)","authors":"Shengchang Lu, C. Ding, Y. Mei, K. Ngo, G. Lu","doi":"10.1109/APEC.2019.8721767","DOIUrl":null,"url":null,"abstract":"A coupled inductor made of different magnetic materials was designed and fabricated for high frequency interleaved multiphase DC/DC converters. The coupled inductor, herein termed hetero-magnetic coupled inductor or HMCI, has a sandwich structure with two ferrite plates and metal windings in between. The gap region between the ferrite plates is filled with a low temperature curable magnetic paste to increase inductance density and reduce fringing effect. The winding structure combined with a custom-formulated magnetic paste provides flexible negative coupling between the different phases. Compared to the a commercial two-phase coupled inductor, FEA simulation of our HMCI shows reductions in footprint by 50% and AC resistance by 36% while having a similar transient inductance. Experimental results on the fabricated inductor were in agreement with the simulated results.","PeriodicalId":142409,"journal":{"name":"2019 IEEE Applied Power Electronics Conference and Exposition (APEC)","volume":"153 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2019-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"7","resultStr":"{\"title\":\"Hetero-Magnetic Coupled Inductor (HMCI) for High Frequency Interleaved Multiphase DC/DC Converters\",\"authors\":\"Shengchang Lu, C. Ding, Y. Mei, K. Ngo, G. Lu\",\"doi\":\"10.1109/APEC.2019.8721767\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"A coupled inductor made of different magnetic materials was designed and fabricated for high frequency interleaved multiphase DC/DC converters. The coupled inductor, herein termed hetero-magnetic coupled inductor or HMCI, has a sandwich structure with two ferrite plates and metal windings in between. The gap region between the ferrite plates is filled with a low temperature curable magnetic paste to increase inductance density and reduce fringing effect. The winding structure combined with a custom-formulated magnetic paste provides flexible negative coupling between the different phases. Compared to the a commercial two-phase coupled inductor, FEA simulation of our HMCI shows reductions in footprint by 50% and AC resistance by 36% while having a similar transient inductance. Experimental results on the fabricated inductor were in agreement with the simulated results.\",\"PeriodicalId\":142409,\"journal\":{\"name\":\"2019 IEEE Applied Power Electronics Conference and Exposition (APEC)\",\"volume\":\"153 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2019-03-17\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"7\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2019 IEEE Applied Power Electronics Conference and Exposition (APEC)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/APEC.2019.8721767\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2019 IEEE Applied Power Electronics Conference and Exposition (APEC)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/APEC.2019.8721767","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Hetero-Magnetic Coupled Inductor (HMCI) for High Frequency Interleaved Multiphase DC/DC Converters
A coupled inductor made of different magnetic materials was designed and fabricated for high frequency interleaved multiphase DC/DC converters. The coupled inductor, herein termed hetero-magnetic coupled inductor or HMCI, has a sandwich structure with two ferrite plates and metal windings in between. The gap region between the ferrite plates is filled with a low temperature curable magnetic paste to increase inductance density and reduce fringing effect. The winding structure combined with a custom-formulated magnetic paste provides flexible negative coupling between the different phases. Compared to the a commercial two-phase coupled inductor, FEA simulation of our HMCI shows reductions in footprint by 50% and AC resistance by 36% while having a similar transient inductance. Experimental results on the fabricated inductor were in agreement with the simulated results.
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