US 12,132,384 B2
Current measuring circuit for a converter, converter circuit and converter
Florian Kapaun, Taufkirchen (DE); and Gerhard Steiner, Taufkirchen (DE)
Assigned to AIRBUS SAS, Blagnac (FR)
Filed by Airbus SAS, Blagnac (FR)
Filed on May 18, 2022, as Appl. No. 17/747,180.
Claims priority of application No. 21175096 (EP), filed on May 20, 2021.
Prior Publication US 2022/0376601 A1, Nov. 24, 2022
Int. Cl. G01R 19/00 (2006.01); G01R 19/165 (2006.01); G01R 31/56 (2020.01); H02M 1/00 (2006.01)
CPC H02M 1/0009 (2021.05) [G01R 19/16571 (2013.01); G01R 31/56 (2020.01)] 9 Claims
OG exemplary drawing
 
1. A converter circuit configured as an inverter, the converter circuit comprising:
a current measuring circuit; and
at least one switching device,
wherein the current measuring circuit comprises:
a positive supply rail,
a negative supply rail,
a reference potential rail, and
a current measuring device,
wherein the at least one switching device is connected between the positive supply rail and the negative supply rail and has an output rail, the current measuring device is connected to each supply rail and to the reference potential rail, and
wherein the current measuring device is configured to measure an electrical fault current between a respective supply rail and the reference potential rail.