公开(公告)号：US20150338444A1

公开(公告)日：2015-11-26

申请号：US14814345

申请日：2015-07-30

Applicant: Texas Instruments Incorporated

Inventor： Mikhail Valeryevich Ivanov ,  Siva RaghuRam Prasad Chennupati ,  Viola Schaffer

IPC: G01R15/20

CPC classification number: G01R15/20 ,  G01R15/148 ,  G01R15/207 ,  G01R33/0005 ,  G01R33/02 ,  G01R33/09

Abstract: Improved current sensing methods and apparatus and conductor apparatus are presented for sensing current in a bus bar or other conductor using one or more circular magnetic sensors or multiple magnetic sensors disposed on a substrate in a pattern surrounding a longitudinal path within the outer periphery of the conductor to avoid or mitigate sensed magnetic field crosstalk and to facilitate use of high sensitivity magnetic sensors at locations inside the conductor periphery in which the magnetic field is relatively small.

Abstract translation: 提出了改进的电流感测方法和装置和导体装置，用于使用一个或多个圆形磁性传感器或多个磁性传感器来感测母线或其它导体中的电流，所述圆形磁性传感器或多个磁性传感器以围绕导体的外周边内的纵向路径的图案设置在基板上 以避免或减轻感测的磁场串扰并且便于在磁场相对较小的导体周边内的位置处使用高灵敏度的磁传感器。

公开(公告)号：US09176203B2

公开(公告)日：2015-11-03

申请号：US13838576

申请日：2013-03-15

Applicant: Texas Instruments Incorporated ,  TEXAS INSTRUMENTS DEUTSCHLAND GMBH

Inventor： Mikhail Valeryevich Ivanov ,  Siva RaghuRam Prasad Chennupati ,  Viola Schaffer

IPC: G01R33/02 ,  G01R33/09 ,  G01R15/14 ,  G01R15/20

CPC classification number: G01R15/20 ,  G01R15/148 ,  G01R15/207 ,  G01R33/0005 ,  G01R33/02 ,  G01R33/09

Abstract: Improved current sensing methods and apparatus and conductor apparatus are presented for sensing current in a bus bar or other conductor using one or more circular magnetic sensors or multiple magnetic sensors disposed on a substrate in a pattern surrounding a longitudinal path within the outer periphery of the conductor to avoid or mitigate sensed magnetic field crosstalk and to facilitate use of high sensitivity magnetic sensors at locations inside the conductor periphery in which the magnetic field is relatively small.

Abstract translation: 提出了改进的电流感测方法和装置和导体装置，用于使用一个或多个圆形磁性传感器或多个磁性传感器来感测母线或其它导体中的电流，所述圆形磁性传感器或多个磁性传感器以围绕导体的外周边内的纵向路径的图案设置在基板上 以避免或减轻感测的磁场串扰并且便于在磁场相对较小的导体周边内的位置处使用高灵敏度的磁传感器。

公开(公告)号：US20230342564A1

公开(公告)日：2023-10-26

申请号：US17729210

申请日：2022-04-26

Applicant: Texas Instruments Incorporated

Inventor： Martijn Snoeij ,  Viola Schaffer

IPC: G06G7/24

CPC classification number: G06G7/24

Abstract: A logarithmic converter circuit includes a converter input and a converter output. The circuit includes a first transistor which includes a control terminal, a first terminal coupled to the converter input, and a second terminal coupled to the converter output. The circuit includes a first operational amplifier which includes a first input coupled to the converter input, a second input coupled to a common potential, and an output coupled to the second terminal. The circuit includes a first capacitor coupled between the first terminal and the control terminal and includes a first resistor coupled between the control terminal and the common potential.