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公开(公告)号：US20160111965A1
公开(公告)日：2016-04-21
申请号：US14883855
申请日：2015-10-15
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Jing WANG , Quinn KNELLER , Scott PARISH
Abstract: An embedded transformer device includes first, second, and auxiliary windings, defined in an insulating substrate by conductive vias joined together by conductive traces. The positions of the conductive vias are arranged to optimize the isolation properties of the transformer and to reduce the coupling of the transformer by increasing the leakage inductance. The embedded transformer device provides better isolation between input side and output side windings, and allows an oscillating LC circuit to be set up in the case of a short circuit, preventing high power from extending between the input and output terminals and thereby avoiding damage to the connected electrical components.
Abstract translation: 嵌入式变压器装置包括通过导电迹线连接在一起的导电通孔限定在绝缘衬底中的第一，第二和辅助绕组。 布置导电通孔的位置以优化变压器的隔离性能，并通过增加漏电感来减小变压器的耦合。 嵌入式变压器设备在输入侧和输出侧绕组之间提供更好的隔离，并且允许在短路情况下建立振荡LC电路，从而防止在输入和输出端子之间延伸的高功率，从而避免损坏 连接电气元件。
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公开(公告)号：US20180076704A1
公开(公告)日：2018-03-15
申请号：US15703086
申请日：2017-09-13
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Quinn KNELLER , Scott PARISH , Mark MOFFAT
CPC classification number: H02M1/08 , H01F27/24 , H01F27/28 , H01F27/2804 , H01F27/2895 , H01F2027/2809 , H01F2027/2819 , H02M1/40 , H02M3/337 , H02M3/3376 , H02M2001/0048 , H05K1/115 , H05K1/165 , H05K1/181 , H05K2201/086 , H05K2201/1003
Abstract: A DC-DC converter includes an insulating substrate; a magnetic core embedded in the insulating substrate, the magnetic core having non-zero x, y and z dimensions of less than or equal to about 5.4 mm by about 5.4 mm by about 1.8 mm; separate primary and secondary transformer windings surrounding first and second regions of the magnetic core; and a control circuit including: an oscillator; a drive circuit coupled to the oscillator; and one or more switches coupled to the drive circuit; the drive circuit providing a switching signal to the one or more switches and energizing the one or more switches to provide a drive voltage to the primary transformer winding. The one or more switches are Field Effect Transistors implemented in a Silicon-on-Insulator configuration or as a Silicon-on-Sapphire configuration.
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公开(公告)号：US20170316872A1
公开(公告)日：2017-11-02
申请号：US15498765
申请日：2017-04-27
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Quinn KNELLER , Scott PARISH , Lee FRANCIS
CPC classification number: H01F27/29 , H01F27/2804 , H01F27/2895 , H01F41/045 , H01F2027/2809 , H02M3/33507 , H02M3/338 , H02M5/10 , H02M5/12 , H02M5/18
Abstract: An embedded magnetic component transformer device includes an insulating substrate with a cavity and a magnetic core housed within the cavity. First and second electrical windings pass through the insulating substrate around the magnetic core. The first electrical winding includes a first end terminal and a second end terminal, and a first tap terminal between the first and second end terminals. The device includes circuitry with a first input terminal electrically connected to the first end terminal and a first output terminal. In a first configuration of the circuitry, the first output terminal is electrically connectable to the second end terminal. In a second configuration of the circuitry, the first output terminal is electrically connectable to the first tap terminal.
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Patent Agency Ranking
公开(公告)号：US20160111200A1
公开(公告)日：2016-04-21
申请号：US14883863
申请日：2015-10-15
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Quinn KNELLER
CPC classification number: H01F27/288 , H01F27/2804 , H01F27/2895 , H01F27/38 , H01F2027/2809 , H02M3/3387 , Y02B70/1433
Abstract: A transformer device includes primary, secondary, and auxiliary windings, located in an insulating substrate by conductive vias joined together by conductive traces. Positions of the conductive vias are arranged so as to optimize the isolation properties of the transformer, and to improve the coupling of the transformer by increasing the leakage inductance and reducing the distributed capacitance. The transformer device is compact and is weakly coupled. The weak coupling between the windings reduces the likelihood of the transformer malfunctioning, particularly when used in a self-resonant converter circuit.
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公开(公告)号：US20190148052A1
公开(公告)日：2019-05-16
申请号：US15929087
申请日：2019-01-11
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Quinn KNELLER
CPC classification number: H01F27/2804 , H01F27/24 , H01F2027/2809 , H01F2027/2819
Abstract: A transformer device includes first, second, and third windings, located in an insulating substrate by conductive vias joined together by conductive traces. Positions of the conductive vias are arranged so as to optimize the isolation properties of the transformer, and to improve the coupling of the transformer by increasing the leakage inductance and reducing the distributed capacitance. The transformer device is compact and is weakly coupled. The weak coupling between the windings reduces the likelihood of the transformer malfunctioning, particularly when used in a self-resonant converter circuit.
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公开(公告)号：US20160254088A1
公开(公告)日：2016-09-01
申请号：US15019240
申请日：2016-02-09
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Quinn KNELLER , Jing WANG , Lee FRANCIS
CPC classification number: H01F27/40 , H01F27/2804 , H01F27/29 , H01F2027/2819 , H02M3/337 , H02M3/338
Abstract: An embedded magnetic component transformer includes first, second, and auxiliary electrical windings in an insulating substrate including conductive vias joined together by conductive traces. The first electrical windings are divided by a tap terminal into first and second winding portions, which are interleaved with one another and energized by separate transistors. Heat generated by the first and second winding portions is transferred more equally to the separate transistors. Equal or substantially equal path lengths between each of the transistors and the first electrical windings improve flux balance allowing the transistors to conduct for equal or substantially equal times during a switching cycle. Thus, the switching cycle of the embedded transformer is more symmetric with respect to each of the transistors and winding portions, improving the electrical characteristics of the transformer.
Abstract translation: 嵌入式磁性部件变压器包括绝缘基板中的第一，第二和辅助电绕组，其包括通过导电迹线连接在一起的导电通孔。 第一电绕组由抽头端子分成第一和第二绕组部分，它们彼此交错并由分离的晶体管激励。 由第一绕组部分和第二绕组部分产生的热量更均匀地传递到单独的晶体管。 晶体管和第一电绕组中的每一个之间的等距或基本相等的路径长度提高了通量平衡，从而允许晶体管在开关周期期间相等或基本相等的时间传导。 因此，嵌入式变压器的开关周期相对于晶体管和绕组部分中的每一个更为对称，改善了变压器的电特性。
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公开(公告)号：US20160111966A1
公开(公告)日：2016-04-21
申请号：US14883866
申请日：2015-10-15
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Jing WANG , Lee FRANCIS , Quinn KNELLER
CPC classification number: H01F27/2804 , H01F27/2895 , H01F2027/2809 , H02M3/28
Abstract: An embedded transformer device includes first, second, and auxiliary windings, defined in an insulating substrate by conductive vias joined together by conductive traces. The positions of the conductive vias are arranged to optimize the isolation properties of the transformer, while the conductive traces are arranged to optimize the coupling between the primary and secondary side windings. The embedded transformer device provides favourable isolation and energy transfer between input side and output side windings, in a device with a small component size.
Abstract translation: 嵌入式变压器装置包括通过导电迹线连接在一起的导电通孔限定在绝缘衬底中的第一，第二和辅助绕组。 布置导电通孔的位置以优化变压器的隔离性能，同时布置导电迹线以优化初级和次级侧绕组之间的耦合。 在具有小部件尺寸的器件中，嵌入式变压器器件在输入侧和输出侧绕组之间提供良好的隔离和能量传递。
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公开(公告)号：US20160111197A1
公开(公告)日：2016-04-21
申请号：US14883859
申请日：2015-10-15
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Quinn KNELLER
CPC classification number: H01F27/2804 , H01F27/24 , H01F2027/2809 , H01F2027/2819
Abstract: A transformer device includes primary, secondary, and auxiliary windings, located in an insulating substrate by conductive vias joined together by conductive traces. Positions of the conductive vias are arranged so as to optimize the isolation properties of the transformer, and to improve the coupling of the transformer by increasing the leakage inductance and reducing the distributed capacitance. The transformer device is compact and is weakly coupled. The weak coupling between the windings reduces the likelihood of the transformer malfunctioning, particularly when used in a self-resonant converter circuit.
Abstract translation: 变压器装置包括通过导电迹线连接在一起的导电通孔位于绝缘衬底中的初级，次级和辅助绕组。 布置导电通孔的位置以优化变压器的隔离性能，并通过增加漏电感并降低分布电容来改善变压器的耦合。 变压器设备紧凑，耦合较弱。 绕组之间的弱耦合降低了变压器故障的可能性，特别是在自谐振变换器电路中使用时。
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