Patent ID: 11870351
Assignee: VALEO SIEMENS EAUTOMOTIVE GERMANY GMBH
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  B  Y | IPC B  H

Claim 0:
1. A power converter having a primary side and a secondary side galvanically isolated therefrom, comprising
a secondary-side functional unit which is operable in dependence on auxiliary information generated on the primary side,
a primary-side voltage supply device arranged to provide a supply voltage,
a power transmission device, which has a switching unit for switching the supply voltage and a transmission unit, which is set up to transmit the switched supply voltage to the secondary side, in order to convert the supply voltage into an operating voltage for the functional unit,
a primary-side modulation means arranged to provide a clock signal to the switching unit and to vary a frequency of the clock signal in dependence on the auxiliary information, and
a secondary-side demodulation device which is arranged to generate at least one use signal representing the auxiliary information from a secondary voltage provided by the transmission unit and to provide a use signal to the functional unit,
wherein the primary-side modulation means is adapted to vary the frequency of the clock signal within a frequency interval in which a voltage translation ratio with respect to input and output voltages of the power transmission device is substantially frequency invariant.