US 12,257,917 B2
Systems, apparatus and methods for electric vehicle charging via a power conversion system
Josh Keister, Atlanta, GA (US); Lyle T. Keister, Athens, GA (US); and Mehdi Abolhassani, Houston, TX (US)
Assigned to RESILIENT POWER SYSTEMS, INC., Athens, GA (US)
Filed by Resilient Power Systems, Inc., Athens, GA (US)
Filed on Apr. 6, 2023, as Appl. No. 18/296,627.
Application 18/296,627 is a continuation of application No. 17/676,491, filed on Feb. 21, 2022, granted, now 11,648,844.
Application 17/676,491 is a continuation in part of application No. 17/244,993, filed on Apr. 30, 2021, granted, now 11,292,352, issued on Apr. 5, 2022.
Prior Publication US 2023/0256853 A1, Aug. 17, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. B60L 53/62 (2019.01); B60L 58/12 (2019.01); H02J 7/00 (2006.01); H02J 7/04 (2006.01); H02M 3/335 (2006.01); H02J 3/38 (2006.01); H02J 7/35 (2006.01)
CPC B60L 53/62 (2019.02) [B60L 58/12 (2019.02); H02J 7/0013 (2013.01); H02J 7/0029 (2013.01); H02J 7/0048 (2020.01); H02J 7/00712 (2020.01); H02J 7/007194 (2020.01); H02J 7/04 (2013.01); H02M 3/33573 (2021.05); H02M 3/33584 (2013.01); B60L 2210/10 (2013.01); B60L 2210/30 (2013.01); H02J 3/381 (2013.01); H02J 7/35 (2013.01); H02J 2207/20 (2020.01); H02J 2300/24 (2020.01)] 21 Claims
OG exemplary drawing
 
1. An electric vehicle (EV) charging system comprising:
a plurality of first converters to receive power at a first voltage and convert the first voltage to at least one second voltage;
a high frequency transformer coupled to the plurality of first converters to receive the at least one second voltage and to output at least one high frequency AC voltage;
a plurality of port rectifiers coupled to a plurality of secondary windings of the high frequency transformer, each of the plurality of port rectifiers comprising an AC-DC converter to receive the at least one high frequency AC voltage and convert the at least one high frequency AC voltage to a DC voltage; and
at least one platform coupled to the plurality of port rectifiers, the at least one platform comprising:
a DC-DC converter to receive the DC voltage from at least one of the plurality of port rectifiers and output a DC charging voltage or a charging current;
a plurality of switches coupled to the DC-DC converter; and
a plurality of dispensers to provide charging power to a plurality of EVs, each of the plurality of dispensers coupled to one of the plurality of switches, wherein the plurality of switches are controllable to provide the DC charging voltage or the charging current to at least one of the plurality of dispensers, to cause at least one of the plurality of EVs to be charged.