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824 条记录 (耗时 0.031 秒)

    PRE-CHARGE SHORT CIRCUIT DETECTION
    1.
    发明公开
    PRE-CHARGE SHORT CIRCUIT DETECTION 审中-公开

    公开(公告)号：US20240364099A1

    公开(公告)日：2024-10-31

    申请号：US18644289

    申请日：2024-04-24

    申请人： Littelfuse, Inc.

    发明人： Michael Gambuzza ,  Guillermo Zatorre ,  Boris Golubovic ,  Cesar Martinez

    IPC分类号： H02H7/18 ,  H02H1/00

    CPC分类号： H02H7/18 ,  H02H1/0007

    摘要： Disclosed is an adaptive pre-charge control circuit, for use in a solid state battery disconnect and protection system, wherein the adaptive pre-charge control circuit includes a high-voltage switch coupled between an electric battery and a DC link capacitor of an electric vehicle, and wherein the electric vehicle is powered by the electric battery. The control circuit may be operable to issue a pulse width modulated (PWM) signal to generate a current profile wherein every other pulse exceeds a predefined limit, monitor, during pre-charging, the current profile, and to determine an overcurrent fault exists in the case that two consecutive pulses exceed the predefined limit.

    CURRENT SENSOR WITH DIAGNOSTIC FEATURE
    2.
    发明公开
    CURRENT SENSOR WITH DIAGNOSTIC FEATURE 审中-公开

    公开(公告)号：US20240241157A1

    公开(公告)日：2024-07-18

    申请号：US18413169

    申请日：2024-01-16

    申请人： Littelfuse, Inc.

    发明人： Boris Golubovic ,  Guillermo Zatorre ,  Cesar Martinez

    IPC分类号： G01R19/00 ,  G01R15/20

    CPC分类号： G01R19/0092 ,  G01R15/207

    摘要： Provided herein are approaches for improving performance of current sensors. In some embodiments, an apparatus may include a current sensor coupled to a busbar, the current sensor comprising a coil, wherein a current flowing through the busbar generates a first magnetic field detectable by the current sensor, wherein the coil is operable to generate a second magnetic field, and wherein by orienting the coil, the current sensor will receive part of the second magnetic field, superposed to the first magnetic field.

    INNER CHAMBERS WITH BLAST ATTENUATION GEOMETRY ON FUSES
    7.
    发明公开
    INNER CHAMBERS WITH BLAST ATTENUATION GEOMETRY ON FUSES 审中-公开

    公开(公告)号：US20240047164A1

    公开(公告)日：2024-02-08

    申请号：US17880121

    申请日：2022-08-03

    申请人： Littelfuse, Inc.

    发明人： Clemente Hernandez Murillo

    IPC分类号： H01H85/175 ,  H01H85/17

    CPC分类号： H01H85/175 ,  H01H85/17

    摘要： A fuse includes multiple stacked layers, a first terminal, and a second terminal. The first terminal is connected to one end of a fusible element and the second terminal is connected to the other end. The stacked layers include first and second intermediate layers and a special layer. The first intermediate layer, which has a centrally disposed opening, is stacked on the first terminal and the second terminal. The second intermediate layer, also having a centrally disposed opening is stacked above the first intermediate layer, and the centrally disposed openings define a chamber above the fusible element. The special layer is located between the first intermediate layer and the second intermediate layer and includes one or more geometric elements. The geometric elements divide the chamber into two sub-chambers, the first sub-chamber being above the second sub-chamber.

    Fuse body with notched ends
    9.
    发明授权
    Fuse body with notched ends 有权

    公开(公告)号：US11804353B1

    公开(公告)日：2023-10-31

    申请号：US17873407

    申请日：2022-07-26

    申请人： Littelfuse, Inc.

    发明人： Edwin Nery Silvederio ,  Fernando Isip Arce, Jr. ,  Francisco Rivera De Guia, Jr. ,  Mark Joseph Lian

    IPC分类号： H01H85/175 ,  H01H85/165 ,  H01H69/02 ,  H01H85/055

    CPC分类号： H01H85/165 ,  H01H69/02 ,  H01H85/055 ,  H01H85/175

    摘要： A fuse including a fuse body having first and second end faces at opposing first and second longitudinal ends thereof, each of the first and second end faces having at least one notch formed therein, a fusible element extending through the fuse body and having a first end bent over the first end face and disposed within the at least one notch in the first end face and a second end bent over the second end face and disposed within the at least one notch in the second end face, and a first endcap disposed on the first longitudinal end of the fuse body and a second endcap disposed on the second longitudinal end of the fuse body, wherein the first and second endcaps flatly abut the first and second end faces without interference from the fusible element.