US 12,323,047 B2
Method of operating a power converter arrangement, control circuit and power converter arrangement
Johann Walter Kolar, Zurich (CH); Jon Azurza Anderson, Villach (AT); Matthias J. Kasper, Villach (AT); and David Menzi, Burgdorf (CH)
Assigned to Infineon Technologies Austria AG, Villach (AT)
Filed by Infineon Technologies Austria AG, Villach (AU)
Filed on Jul. 14, 2022, as Appl. No. 17/864,788.
Claims priority of application No. 21191396 (EP), filed on Aug. 13, 2021.
Prior Publication US 2023/0047484 A1, Feb. 16, 2023
Int. Cl. H02M 1/12 (2006.01); H02M 1/42 (2007.01)
CPC H02M 1/123 (2021.05) [H02M 1/4216 (2013.01); H02M 1/4225 (2013.01); H02M 1/4233 (2013.01)] 28 Claims
OG exemplary drawing
 
1. A method comprising:
coupling three power converters to each other;
connecting each of the three power converters to a 3-phase power supply, the 3-phase power supply operative to output three supply voltages;
receiving a signal; and
regulating a respective input voltage inputted to each of the three power converters dependent on the received signal;
wherein the received signal is periodic and has a frequency that is dependent on a frequency of a first input voltage of three input voltages outputted from the 3-phase power supply to the three power converters; and
wherein the received signal has a phase that is dependent on a phase of the first input voltage outputted from the 3-phase power supply;
wherein a magnitude of the received signal varies over time;
wherein the three power converters are coupled to each other via a first node; and
wherein the received signal is a common mode voltage setting used to control a magnitude of a common mode voltage between the first node and a second node, the second node being a node of the 3-phase power supply.