US 12,255,481 B2
Pulsed current battery management system
John L. Melanson, Austin, TX (US); Eric J. King, Austin, TX (US); and Emmanuel Marchais, Dripping Springs, TX (US)
Assigned to Cirrus Logic Inc., Austin, TX (US)
Filed by Cirrus Logic International Semiconductor Ltd., Edinburgh (GB)
Filed on Aug. 6, 2021, as Appl. No. 17/395,682.
Claims priority of provisional application 63/179,946, filed on Apr. 26, 2021.
Prior Publication US 2022/0344958 A1, Oct. 27, 2022
Int. Cl. H02J 7/00 (2006.01)
CPC H02J 7/00711 (2020.01) [H02J 7/0048 (2020.01); H02J 7/005 (2020.01); H02J 7/00714 (2020.01)] 40 Claims
OG exemplary drawing
 
1. A battery management system, comprising:
an input configured to couple to a direct-current power supply and receive a direct-current voltage at the input from the direct-current power supply;
an output configured to couple to a battery; and
battery management circuitry coupled between the direct-current power supply and the battery, wherein the battery management circuitry comprises:
an energy reservoir;
a first power converter interfaced between the energy reservoir and the input and configured to transfer electrical energy from the input to the energy reservoir; and
a second power converter interfaced between the energy reservoir and the output and configured to deliver electrical energy to the output at a significantly higher peak-to-average power ratio than receipt of electrical energy to the input.