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

Claim 3:
4. 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;
wherein the adjusted battery supply voltage is provided from a serial connection of the main battery source and a first auxiliary battery source in the set, the first auxiliary battery source operative to produce a first auxiliary battery voltage, the adjusted battery supply voltage being a first summation of the main battery voltage and the first auxiliary battery voltage;
wherein the controller is further operative to produce the adjusted battery supply voltage to be the first summation of the main battery voltage and the first auxiliary battery voltage in response to detecting that the magnitude of the battery supply voltage falls below the threshold level; and
wherein the controller is further operative to: i) monitor the battery supply voltage equal to the first summation, and ii) in response to detecting that the battery supply voltage equal to the first summation falls below the threshold level, produce the adjusted battery supply voltage to be a second summation, the second summation being a sum of: i) the main battery voltage, ii) the first auxiliary battery voltage, and iii) a second auxiliary battery voltage provided by a second auxiliary battery source in the set.