US 11,916,428 B2
Battery voltage control and regulation
Luca Peluso, Villach (AT); and Matthias J. Kasper, Villach (AT)
Assigned to Infineon Technologies Austria AG, Villach (AT)
Filed by Infineon Technologies Austria AG, Villach (AT)
Filed on Dec. 13, 2021, as Appl. No. 17/549,021.
Prior Publication US 2023/0187958 A1, Jun. 15, 2023
Int. Cl. H02J 7/00 (2006.01); H02J 7/34 (2006.01)
CPC H02J 7/007182 (2020.01) [H02J 7/0013 (2013.01); H02J 7/0047 (2013.01); H02J 7/0063 (2013.01); H02J 7/345 (2013.01)] 22 Claims
OG exemplary drawing
 
1. 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 power converter is operative to convert the battery supply voltage into a supplemental voltage in which a summation of the supplemental voltage and the battery supply voltage produces an output voltage to power a load;
the apparatus further comprising: an energy storage resource disposed in series with the main battery source, the energy storage resource operative to store the supplemental voltage; and
wherein the controller is operative to generate the output voltage in response to detecting that an input voltage source discontinues powering the load.