Patent ID: 11953971
Assignee: INFINEON TECHNOLOGIES AUSTRIA AG
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 8:
9. A control circuit comprising circuitry configured to:
operate a buffer circuit in a first operating mode or a second operating mode,
wherein operating the buffer circuit in the first operating mode comprises buffering, by a first capacitor of the buffer circuit, power provided by a power source and received by a load,
wherein operating the buffer circuit in the second operating mode comprises:
connecting a second capacitor in series with the first capacitor to form a capacitor series circuit;
supplying power to the load by the capacitor series circuit; and
regulating a first voltage across the capacitor series circuit,

wherein regulating the first voltage comprises transferring charge from the first capacitor to the second capacitor,
wherein the circuitry is further configured to:
monitor an input voltage received by the power source; and
operate the buffer circuit in the second operating mode when the input voltage is zero for longer than a predefined time period.