US 12,222,384 B2
Circuits and methods for detecting line short circuits and/or line interruptions in differentially operated line networks
Mario Motz, Wernberg (AT); Florian Brugger, Villach (AT); Carlos Humberto Garcia Rojas, Villach (AT); Francesco Polo, Arnoldstein (AT); and Tobias Werth, Villach (AT)
Assigned to Infineon Technologies AG, Neubiberg (DE)
Filed by Infineon Technologies AG, Neubiberg (DE)
Filed on Oct. 26, 2021, as Appl. No. 17/452,284.
Claims priority of application No. 102020128590.6 (DE), filed on Oct. 30, 2020; and application No. 102021108192.0 (DE), filed on Mar. 31, 2021.
Prior Publication US 2022/0137122 A1, May 5, 2022
Int. Cl. G01R 31/28 (2006.01); G01D 5/20 (2006.01); G01R 31/00 (2006.01); H02H 1/00 (2006.01)
CPC G01R 31/2829 (2013.01) [G01D 5/20 (2013.01); G01R 31/006 (2013.01); H02H 1/0007 (2013.01)] 31 Claims
OG exemplary drawing
 
1. A circuit for detecting a line short circuit and/or a line interruption in a differentially operated line network, comprising:
at least one control circuit configured to:
control at least one common-mode signal of the differentially operated line network vis-à-vis a predefined common-mode signal variable, and
indicate at least one of a line short circuit in the differentially operated line network or a line interruption in the differentially operated line network when at least one control or controlled variable exceeds a predefined threshold value.