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

IPC: H02M3/335 ,  H01F27/24 ,  H01F41/04 ,  H01F27/28

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 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。

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

IPC: H02M1/08 ,  H02M3/337 ,  H01F27/24 ,  H01F27/28 ,  H05K1/18 ,  H05K1/11

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.

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

IPC: H01F27/29 ,  H02M3/335 ,  H01F27/28

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.