Current sensor integrated circuit having different current path widths for detecting stray fields

Abstract

Methods and apparatus for a current sensor integrated circuit package including a current conductor, which may be a loop, having regions of different widths and first and second magnetic field sensing elements positioned in relation to the current loop. The first magnetic field sensing element generates a first output signal and the second magnetic field sensing element generates a second output signal. An adjustment circuit adjusts the output of the first magnetic field sensing element to generate an adjusted signal for the first magnetic field sensing element that is same as the second output signal. A diagnostic module receives the adjusted signal for the first magnetic field sensing element and the output of the second output signal to detect a presence of a stray field.

Dependencies are inferred from the claim text.