US 11,988,694 B2
Device and method for self-adjusting an electrical threshold for detecting a power failure
Jörg Wallerath, Essen (DE); and Emmanuel Boudoux, Cologne (DE)
Assigned to APTIV TECHNOLOGIES AG, Schaffhausen (CH)
Filed by Aptiv Technologies AG, Schaffhausen (CH)
Filed on May 6, 2022, as Appl. No. 17/738,391.
Application 17/738,391 is a continuation of application No. 16/713,487, filed on Dec. 13, 2019, granted, now 11,360,127.
Claims priority of application No. 1872944 (FR), filed on Dec. 14, 2018.
Prior Publication US 2022/0283205 A1, Sep. 8, 2022
Int. Cl. G01R 19/165 (2006.01); G01R 19/25 (2006.01); G06F 1/28 (2006.01)
CPC G01R 19/16542 (2013.01) [G01R 19/2513 (2013.01); G06F 1/28 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A self-adjusting device for generating an electrical threshold for a monitored system, the device comprising:
a plurality of reference signals comprising successive intervals increasing in magnitude according to a geometric sequence;
an input signal representative of a voltage or current monitored with respect to the monitored system;
a framing unit that compares the input signal to the plurality of reference signals and provides an output indicating the reference signal that is representative of the input signal, wherein the selected reference signal is a first reference signal; and
a switching unit that selects one of the plurality of reference signals to provide as the electrical threshold for the monitored system based on the output provided by the framing unit, wherein the selected reference signal is a second reference signal, and wherein the second reference signal and the first reference signal are located equidistantly from respective ends of the geometric sequence.