Patent ID: 11881763
Assignee: VALEO SIEMENS EAUTOMOTIVE GERMANY GMBH
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  B  Y | IPC B  H

Claim 9:
10. A control device for discharging a DC link capacitor, comprising:
a discharge device including a load resistor and a switch element connected in series with the load resistor,
a generator unit, which is connected to the switch element and configured to generate a pulse width-modulated actuation signal for the switch element with an ascertained duty cycle, and
a control unit, which is connected to the generator unit and configured to ascertain the duty cycle in such a way that, in a time average, a desired discharge current flows through the load resistor,
wherein the control unit is configured to ascertain the duty cycle as a function of a piece of current information that describes a time average of a current flowing through the load resistor.