公开(公告)号：US11139102B2

公开(公告)日：2021-10-05

申请号：US15703086

申请日：2017-09-13

申请人： Murata Manufacturing Co., Ltd.

发明人： Quinn Kneller ,  Scott Parish ,  Mark Moffat

IPC分类号： H01F27/28

摘要： 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：US10573457B2

公开(公告)日：2020-02-25

申请号：US14883855

申请日：2015-10-15

申请人： Murata Manufacturing Co., Ltd.

发明人： Jing Wang ,  Quinn Kneller ,  Scott Parish

IPC分类号： H01F5/00 ,  H01L27/08 ,  H01F41/04 ,  H01F27/28 ,  H01F19/06 ,  H02M3/335 ,  H02M3/337 ,  H02M1/00

摘要： 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.

公开(公告)号：US09899140B2

公开(公告)日：2018-02-20

申请号：US15498765

申请日：2017-04-27

申请人： Murata Manufacturing Co., Ltd.

发明人： Quinn Kneller ,  Scott Parish ,  Lee Francis

IPC分类号： H02M5/12 ,  H01F27/29 ,  H02M3/335 ,  H01F27/28 ,  H02M5/10 ,  H02M5/18

CPC分类号： H01F27/29 ,  H01F27/2804 ,  H01F27/2895 ,  H01F41/045 ,  H01F2027/2809 ,  H02M3/33507 ,  H02M3/338 ,  H02M5/10 ,  H02M5/12 ,  H02M5/18

摘要： 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.