US 11,876,366 B2
Overvoltage protection
Michel Bouche, Grenoble (FR)
Assigned to STMicroelectronics (Alps) SAS, Grenoble (FR)
Filed by STMicroelectronics (Alps) SAS, Grenoble (FR)
Filed on Dec. 7, 2022, as Appl. No. 18/062,980.
Application 18/062,980 is a continuation of application No. 17/157,555, filed on Jan. 25, 2021, granted, now 11,552,467.
Claims priority of application No. 2000762 (FR), filed on Jan. 27, 2020.
Prior Publication US 2023/0098647 A1, Mar. 30, 2023
Int. Cl. H02H 3/20 (2006.01); H02H 3/02 (2006.01); H02H 3/033 (2006.01)
CPC H02H 3/202 (2013.01) [H02H 3/021 (2013.01); H02H 3/033 (2013.01); H02H 3/20 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An electronic circuit comprising:
a plurality of first switches, each first switch configured to couple a respective first node of the electronic circuit to a first input/output terminal of the electronic circuit;
a plurality of second switches, each second switch configured to couple the respective first node to a second node of application of a fixed voltage potential;
a high-pass filter having an input coupled to the first input/output terminal, and having an output coupled to a respective control terminal of each second switch; and
a second input/output terminal coupled to the input of the high-pass filter, and coupled to the second node by a circuit of protection against electrostatic discharges.