公开(公告)号：US20210364560A1

公开(公告)日：2021-11-25

申请号：US17118330

申请日：2020-12-10

Applicant: Cirrus Logic International Semiconductor Ltd.

Inventor： Kathryn R. HOLLAND ,  Bo-Ren WANG ,  Ravi K. KUMMARAGUNTLA ,  Graeme G. MACKAY ,  Christian LARSEN

IPC: G01R27/02 ,  H01C1/14 ,  H01C1/16 ,  H01C17/00

Abstract: An apparatus may include a sense resistor comprising a plurality of parallel-coupled resistor elements, a plurality of positive voltage sense points, and a plurality of negative voltage sense points. A first passive combination network may be configured to combine the plurality of positive voltage sense points into a single positive sense terminal and a second passive combination network may be configured to combine the plurality of negative voltage sense points into a single negative sense terminal. The first passive combination network and the second passive combination network may be arranged such that a sense voltage is measurable between the single positive sense terminal and the single negative sense terminal and a dependence of the sense voltage on a variation in current density in the parallel-coupled resistor elements is minimized.