发明授权
- 专利标题： Magnetic element for multi-phase and method of manufacturing the same
- 专利标题（中）： 用于多相的磁性元件及其制造方法
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申请号： US11402979申请日： 2006-04-13
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公开(公告)号： US07425883B2公开(公告)日： 2008-09-16
- 发明人: Nobuya Matsutani , Hidenori Uematsu , Tsunetsugu Imanishi
- 申请人： Nobuya Matsutani , Hidenori Uematsu , Tsunetsugu Imanishi
- 申请人地址： JP Osaka
- 专利权人： Matsushita Electric Industrial Co., Ltd.
- 当前专利权人： Matsushita Electric Industrial Co., Ltd.
- 当前专利权人地址： JP Osaka
- 代理机构： Steptoe & Johnson LLP
- 优先权： JP2002-244732 20020826; JP2002-244733 20020826
- 主分类号： H01F27/02
- IPC分类号： H01F27/02
摘要：
A magnetic element for multi-phase is composed by burying a plurality of coils in a composite magnetic material such that a negative coupling of magnetic fluxes or a positive coupling of magnetic fluxes exists between at least two coils. This structure more miniaturizes inductors, or choke coils as the multi-phase magnetic element suitably used for application of a large current to many kinds of electronic equipment. Such multi-phase magnetic element has an excellent ripple current property.