公开(公告)号：US20160231364A1

公开(公告)日：2016-08-11

申请号：US14618343

申请日：2015-02-10

Applicant: QUALCOMM Incorporated

Inventor： Saeed Nejatali ,  Francesco Carobolante ,  Linda Stacey Irish ,  Cody Wheeland ,  Gregory Bachmanek

IPC: G01R19/00

CPC classification number: G01R15/20 ,  G01R15/181 ,  G01R19/0092 ,  G01R33/0076 ,  H02J7/025 ,  H02J7/04 ,  H02J50/12 ,  H04B5/0037 ,  H04B5/0081

Abstract: Disclosed is a current sensor that senses current flow in a conductor by coupling a first magnetic field generated by the conductor to a sense element. The current sensor includes a shield including a first material that sandwiches the sense element to define a stack and a second material that sandwiches the stack. The shield is configured to generate a second magnetic field, responsive to a third magnetic field external to the current sensor that opposes the third magnetic field. The shield is further configured to prevent production of a magnetic field that opposes the first magnetic field generated by the flow of current in the conductor.

Abstract translation: 公开了一种电流传感器，其通过将由导体产生的第一磁场耦合到感测元件来感测导体中的电流流动。 电流传感器包括屏蔽，其包括夹着感测元件以限定叠层的第一材料和夹持该叠层的第二材料。 屏蔽被配置为响应于与第三磁场相对的电流传感器外部的第三磁场产生第二磁场。 屏蔽还被配置成防止产生与由导体中的电流流动产生的第一磁场相反的磁场。