公开(公告)号：US20210006062A1

公开(公告)日：2021-01-07

申请号：US16919518

申请日：2020-07-02

Applicant: Infineon Technologies AG

Inventor： Michael Schlueter ,  Andre Uhlemann

IPC: H02H9/00 ,  H03K17/16 ,  H03K17/0814

Abstract: A snubber circuit includes a snubber substrate including an electrically insulating carrier and an electrically conducting structured layer applied thereon, the electrically conducting structured layer including two segments. The snubber circuit fuither includes two electrically resistive layers, each resistive layer being applied onto the two segments of the electrically conducting structured layer of the snubber substrate, and a capacitor disposed on the electrically resistive layers and having two terminals, each terminal being electrically connected to one of the electrically resistive layers. Further, a power semiconductor module having such a snubber circuit is disclosed.

公开(公告)号：US09726711B2

公开(公告)日：2017-08-08

申请号：US14300272

申请日：2014-06-10

Applicant: Infineon Technologies AG

Inventor： Michael Schlueter ,  Stefan Hubert Schmies

IPC: G01R31/26 ,  G08C19/02 ,  H04Q9/00

CPC classification number: G01R31/2607 ,  G08C19/02 ,  H04Q9/00

Abstract: A power semiconductor module includes a power electronics circuit and a measuring circuit for measuring a physical parameter occurring in the power electronics circuit and for providing a corresponding measurement signal. A transmission circuit is coupled to a secondary side of a transfer unit, and an evaluation circuit is coupled to the primary side and galvanically isolated from the transmission circuit by the transfer unit. The evaluation circuit supplies an AC voltage to the primary side, causing primary current to flow on the primary side, which in turn results in secondary current on the secondary side, the secondary current being supplied to the transmission circuit. The transmission circuit receives the measurement signal and modulates the secondary current in accordance with the measurement signal, which results in a modulation of the primary current. The evaluation circuit evaluates the modulation of the primary current and generates an output signal dependent thereon.

公开(公告)号：US11631974B2

公开(公告)日：2023-04-18

申请号：US16919518

申请日：2020-07-02

Applicant: Infineon Technologies AG

Inventor： Michael Schlueter ,  Andre Uhlemann

IPC: H02H9/00 ,  H03K17/0814 ,  H03K17/16 ,  H05K1/16 ,  H03K19/0185 ,  H01L29/16

Abstract: A snubber circuit includes a snubber substrate including an electrically insulating carrier and an electrically conducting structured layer applied thereon, the electrically conducting structured layer including two segments. The snubber circuit further includes two electrically resistive layers, each resistive layer being applied onto the two segments of the electrically conducting structured layer of the snubber substrate, and a capacitor disposed on the electrically resistive layers and having two terminals, each terminal being electrically connected to one of the electrically resistive layers. Further, a power semiconductor module having such a snubber circuit is disclosed.

公开(公告)号：US20140368231A1

公开(公告)日：2014-12-18

申请号：US14300272

申请日：2014-06-10

Applicant: Infineon Technologies AG

Inventor： Michael Schlueter ,  Stefan Hubert Schmies

IPC: G01R31/26

CPC classification number: G01R31/2607 ,  G08C19/02 ,  H04Q9/00

Abstract: A power semiconductor module includes a power electronics circuit and a measuring circuit for measuring a physical parameter occurring in the power electronics circuit and for providing a corresponding measurement signal. A transmission circuit is coupled to a secondary side of a transfer unit, and an evaluation circuit is coupled to the primary side and galvanically isolated from the transmission circuit by the transfer unit. The evaluation circuit supplies an AC voltage to the primary side, causing primary current to flow on the primary side, which in turn results in secondary current on the secondary side, the secondary current being supplied to the transmission circuit. The transmission circuit receives the measurement signal and modulates the secondary current in accordance with the measurement signal, which results in a modulation of the primary current. The evaluation circuit evaluates the modulation of the primary current and generates an output signal dependent thereon.

Abstract translation: 功率半导体模块包括电力电子电路和用于测量电力电子电路中出现的物理参数并用于提供对应的测量信号的测量电路。 传输电路耦合到传输单元的次级侧，并且评估电路耦合到初级侧，并且通过传送单元与传输电路电隔离。 评估电路向初级侧提供AC电压，使一次电流在初级侧流动，这又导致次级侧的次级电流，次级电流被提供给传输电路。 传输电路接收测量信号并根据测量信号调制二次电流，这导致初级电流的调制。 评估电路评估初级电流的调制并产生取决于其的输出信号。