US 12,375,020 B2
Arrangement and method for supplying energy to a control device
Thomas Götze, Höchstadt (DE); and Peter Lemke, Schwabach (DE)
Assigned to SEMIKRON DANFOSS ELEKTRONIK GMBH & CO. KG, Nuremberg (DE)
Filed by SEMIKRON DANFOSS ELEKTRONIK GMBH & CO. KG, Nuremberg (DE)
Filed on Oct. 27, 2023, as Appl. No. 18/384,829.
Claims priority of application No. 10 2022 129 450.1 (DE), filed on Nov. 8, 2022.
Prior Publication US 2024/0154556 A1, May 9, 2024
Int. Cl. H02M 1/44 (2007.01); H02P 23/14 (2006.01); H02P 27/06 (2006.01)
CPC H02P 23/14 (2013.01) [H02P 27/06 (2013.01)] 12 Claims
OG exemplary drawing
 
1. An arrangement for determining a speed of an electrical machine connected to a power electronic switching device and for supplying energy to a control device of the power electronic switching device, comprising:
an inductive decoupling device arranged on an electrical conductor leading from the power electronic switching device to the electrical machine;
a frequency determination device configured to determine a frequency of a voltage associated with a current in the electrical conductor and to indirectly determine the speed of the electrical machine; and
wherein an output voltage, including at least a rectified output voltage, of the decoupling device forms a voltage source for the control device.