Patent ID: 11916428
Assignee: INFINEON TECHNOLOGIES AUSTRIA AG
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 20:
21. An apparatus comprising:
a main battery source operative to produce a main battery voltage;
a set of one or more auxiliary battery sources, each of which is operative to produce a respective auxiliary battery voltage; and
a controller operative to:
i) initially set a battery supply voltage to the main battery voltage, the battery supply voltage supplied to a power converter;
ii) monitor a magnitude of the battery supply voltage; and
iii) via at least one of the auxiliary battery sources in the set, adjust the battery supply voltage supplied to the power converter based on a comparison of the magnitude of the battery supply voltage with respect to a threshold level;

the system further comprising an energy storage resource disposed in series between the main battery source and a load;
wherein the power converter is operative to convert the battery supply voltage into a supplemental voltage stored in the energy storage resource;
wherein a first node coupling the main battery source and the energy storage resource supplies the battery supply voltage to the power converter; and
wherein the controller is operative to adjust a magnitude of the supplemental voltage to maintain a magnitude of a backup voltage generated by the power converter to a second node of the energy storage resource, the backup voltage powering the load.