公开(公告)号：US20150354985A1

公开(公告)日：2015-12-10

申请号：US14830098

申请日：2015-08-19

Applicant: Allegro Microsystems, LLC

Inventor： Joseph James Judkins, III ,  Ryan Jon Metivier ,  Gerardo A. Monreal ,  Bruno Luis Uberti

IPC: G01D5/14 ,  G01B7/14 ,  G01D5/16

CPC classification number: G01D5/142 ,  G01B7/14 ,  G01D5/16 ,  G01R33/0023 ,  G01R33/0206 ,  G01R33/07

Abstract: In one aspect, a magnetic field sensor includes first and second magnetic field sensing elements having respective first and second maximum response axes. The first and second maximum response axes point along respective first and second different coordinate axes. In response to a magnetic field, the first and second magnetic field sensing elements are operable to generate first and second magnetic field signals. The magnetic field sensor includes an electronic circuit coupled to receive the first and the second magnetic field signals. The electronic circuit is configured to determine a magnitude of a vector sum of the first and the second magnetic field signals and provide one or more signals in response to the magnitude of the vector sum determined.

Abstract translation: 在一个方面，磁场传感器包括具有相应的第一和第二最大响应轴的第一和第二磁场感测元件。 第一和第二最大响应轴指向相应的第一和第二不同坐标轴。 响应于磁场，第一和第二磁场感测元件可操作以产生第一和第二磁场信号。 磁场传感器包括耦合以接收第一和第二磁场信号的电子电路。 电子电路被配置为确定第一和第二磁场信号的矢量和的大小，并响应于确定的矢量和的大小提供一个或多个信号。

公开(公告)号：US20130335066A1

公开(公告)日：2013-12-19

申请号：US13969702

申请日：2013-08-19

Applicant: Allegro Microsystems, LLC

Inventor： Juan Manuel Cesaretti ,  Gerardo A. Monreal ,  William P. Taylor ,  Michael C. Doogue

IPC: G01R35/00

CPC classification number: G01R35/005 ,  G01R33/0035

Abstract: A magnetic field sensor includes a diagnostic circuit that allows a self-test of most of, or all of, the circuitry of the magnetic field sensor, including a self-test of a magnetic field sensing element used within the magnetic field sensor. The magnetic field sensor can generate a diagnostic magnetic field to which the magnetic field sensor is responsive.

Abstract translation: 磁场传感器包括诊断电路，其允许对磁场传感器的电路的大部分或全部进行自检，包括在磁场传感器内使用的磁场感测元件的自检。 磁场传感器可以产生磁场传感器响应的诊断磁场。