公开(公告)号：US10895604B2

公开(公告)日：2021-01-19

申请号：US15744470

申请日：2016-07-13

Applicant: Ballard Power Systems Inc. ,  Simon Fraser University

Inventor： Jacob W. Devaal ,  Hooman Homayouni ,  Farid Golnaraghi

IPC: G01R31/389 ,  G01R31/3835 ,  G01N27/02 ,  G01N27/416 ,  H01M8/1018 ,  H03L5/00

Abstract: Systems and methods to provide a low voltage interface coupleable between an energy storage device or a DC power source (e.g., fuel cell stack, battery) and one or more AC signal diagnostic systems. The low voltage interface reduces a voltage of the DC power source and supplies the reduced voltage to the one or more AC signal diagnostic systems without affecting the results of the measurements obtained by the one or more AC signal diagnostic systems. Such functionality provides a safer method for performing advanced analysis (e.g., EIS, frequency analysis) while utilizing lower cost and/or smaller components.