US 11,855,555 B2
Control device for an inverter, inverter for a vehicle, vehicle and method of operating an inverter
Karsten Wiedmann, Spardorf (DE); Timur Werner, Erlangen (DE); and Markus Reymann, Nuremberg (DE)
Assigned to VALEO SIEMENS EAUTOMOTIVE GERMANY GMBH, Erlangen (DE)
Appl. No. 17/277,549
Filed by Valeo Siemens eAutomotive Germany GmbH, Erlangen (DE)
PCT Filed Sep. 19, 2019, PCT No. PCT/EP2019/075241
§ 371(c)(1), (2) Date Mar. 18, 2021,
PCT Pub. No. WO2020/058445, PCT Pub. Date Mar. 26, 2020.
Claims priority of application No. 10 2018 123 207.1 (DE), filed on Sep. 20, 2018.
Prior Publication US 2022/0029556 A1, Jan. 27, 2022
Int. Cl. H02M 7/538 (2007.01); H02M 7/5387 (2007.01); H02P 3/22 (2006.01); H02P 23/00 (2016.01)
CPC H02M 7/53875 (2013.01) [H02P 3/22 (2013.01); H02P 23/0027 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A control device for an inverter comprising three half-bridges each having a first power switching element connected to a first DC voltage potential and a second power switching element connected to a second DC voltage potential, wherein the control device is arranged for driving the first and second power switching elements to convert a DC voltage present between the DC voltage potentials into a polyphase AC current in a normal operating mode and for transferring the inverter from the normal operating mode to a safe operating mode,
wherein the control device is further set up to drive the first and second power switching elements alternately in the safe operating mode for switching single-phase active short circuits and for switching two-phase active short circuits.