Patent ID: 11901805
Assignee: SMA SOLAR TECHNOLOGY AG
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 12:
13. The method as claimed in claim 12, further comprising applying a potential that is positive with respect to a potential at the neutral connection to the first DC voltage connection and a potential that is negative with respect to the potential at the neutral connection to the second DC voltage connection, and wherein, after a switch configuration in which the fifth power semiconductor switch and the sixth power semiconductor switch are in a switched-on state and all other power semiconductor switches are in a switched-off state, transferring the third power semiconductor switch to a switched-on state if a positive current is present at the AC connection, and transferring the second power semiconductor switch to a switched-on state if a negative current is present at the AC connection, and transferring the third power semiconductor switch or the second power semiconductor switch, respectively, to a switched-off state again after the fifth power semiconductor switch and the sixth power semiconductor switch have been transferred before to a switched-off state during the switch-off process.