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公开(公告)号:US5815062A
公开(公告)日:1998-09-29
申请号:US809205
申请日:1997-02-28
CPC分类号: H01F3/10 , H01F27/245 , H01F27/346 , H01F3/14
摘要: In the magnetic core including a first leg portion around which a wire is wound, a second leg portion for circulating a magnetic flux generated in the first leg portion, and a web portion connecting the first leg portion and the second leg portion, a magnetic gap is provided in a rear area extending from the root of the first leg portion. With the magnetic gap, a magnetic flux leaking outwardly from a rear area extending from the root of the first leg portion is drastically reduced.
摘要翻译: PCT No.PCT / JP96 / 01807 Sec。 371日期1997年2月28日 102(e)日期1997年2月28日PCT Filed 1996年6月28日PCT公布。 公开号WO97 / 02293 日期1997年1月23日在包括绕线的第一腿部的磁芯中,用于使在第一腿部中产生的磁通量循环的第二腿部和连接第一腿部和第二腿部的腹板部分 在从第一腿部的根部延伸的后部区域中设置有磁隙。 通过磁隙,从第一支腿部分的根部延伸的后部区域向外泄漏的磁通量大大降低。
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公开(公告)号:US5618464A
公开(公告)日:1997-04-08
申请号:US402693
申请日:1995-03-13
申请人: Emi Nakagawa , Hitoshi Ueda , Akio Uchikawa , Norikazu Koyuhara
发明人: Emi Nakagawa , Hitoshi Ueda , Akio Uchikawa , Norikazu Koyuhara
CPC分类号: C04B35/2666 , C04B35/2658
摘要: A Ni ferrite sintered body comprising 48.0-50.0 mol % of Fe.sub.2 O.sub.3, 14.0-24.0 mol % of NiO and 28.0-36.0 mol % of ZnO with 50 ppm or less of P as an impurity, the sintered body having a minimum core loss of 30 kW/m.sup.3 or less at 50 kHz and 50 mT, and the segregation percentage of P in the crystal structure being 1% or less by area. The Ni ferrite sintered body preferably has an average crystal grain size of 3-30 .mu.m, the percentage of crystal grain particles larger than two times the average crystal grain size being preferably 10% or less based on the total number of the crystal grain particles in a crystal structure.
摘要翻译: 包含48.0-50.0摩尔%的Fe 2 O 3,14.0-24.0摩尔%的NiO和28.0-36.0摩尔%的ZnO,50ppm或更少的P作为杂质的Ni铁氧体烧结体,烧结体的最小铁损为30 在50kHz和50mT下的kW / m 3或更小,并且晶体结构中的P的偏析百分比为1%以下。 Ni铁氧体烧结体的平均结晶粒径优选为3〜30μm,平均结晶粒径的2倍以上的结晶粒子的比例优选为10%以下,结晶粒子的总数 在晶体结构中。
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公开(公告)号:US07061355B2
公开(公告)日:2006-06-13
申请号:US10649777
申请日:2003-08-28
IPC分类号: H01F17/06
CPC分类号: C04B35/265 , C04B35/2658 , C04B2235/3262 , C04B2235/3279 , C04B2235/3281 , C04B2235/3284 , H01F1/344 , H01F3/08 , H01F17/06 , H01F2017/065 , H01F2017/067 , H04N7/10
摘要: A ferrite core for use in coupling transformers and distributing transformers in CATV equipments such as couplers, distributors and amplifiers, the ferrite core being made of a ferrite having a saturation magnetostriction |λS| of 8×10−6 or less in an absolute value and an initial permeability μi of 300 or more.
摘要翻译: 一种铁氧体磁芯,用于耦合变压器并在诸如耦合器,分配器和放大器的CATV设备中分配变压器,铁氧体磁芯由具有饱和磁致伸缩|铁素体的铁氧体制成| 的绝对值为8×10 -6以下,初始磁导率μof为300以上。
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