US 12,294,289 B2
Systems and methods for resonant converter thermal and ripple current improvement using two stage voltage loop
Alexandre M. S. Reis, Westfield, IN (US); Sunil Sreedhar, Westfield, IN (US); and Abhishek Vijay Danekar, Kokomo, IN (US)
Assigned to BorgWarner US Technologies LLC, Wilmington, DE (US)
Filed by BorgWarner US Technologies LLC, Wilmington, DE (US)
Filed on May 25, 2023, as Appl. No. 18/323,748.
Prior Publication US 2024/0396431 A1, Nov. 28, 2024
Int. Cl. H02M 1/14 (2006.01); B60L 53/20 (2019.01); H02J 7/02 (2016.01); H02M 1/42 (2007.01); H02M 7/219 (2006.01)
CPC H02M 1/14 (2013.01) [B60L 53/20 (2019.02); H02J 7/02 (2013.01); H02M 1/4266 (2013.01); H02M 7/219 (2013.01); B60L 2210/10 (2013.01); B60L 2210/30 (2013.01); H02J 2207/20 (2020.01)] 20 Claims
OG exemplary drawing
 
1. A system comprising:
an alternating current (AC) to direct current (DC) converter (AC-DC converter), the AC-DC converter including a bulk capacitor;
a DC-DC converter connectable to the AC-DC converter; and
one or more controllers configured to control the system by performing operations, the operations including:
determining a current demand of a load, the load being connectable to the DC-DC converter, for a charging cycle of the load;
performing a first comparison of the current demand to one or more current demand thresholds; and
generating a voltage setpoint for the bulk capacitor based on the first comparison, wherein the generation of the voltage setpoint limits output current ripple of the DC-DC converter for the charging cycle.