US 12,191,776 B2
Hybrid charger and inverter system
Ashish K. Sahoo, San Jose, CA (US); Jie Lu, San Jose, CA (US); Brandon Pierquet, San Francisco, CA (US); and Anish Prasai, Santa Clara, CA (US)
Assigned to Apple Inc., Cupertino, CA (US)
Filed by Apple Inc., Cupertino, CA (US)
Filed on Dec. 8, 2023, as Appl. No. 18/533,486.
Application 18/533,486 is a continuation of application No. 17/457,376, filed on Dec. 2, 2021.
Application 18/533,486 is a continuation of application No. 17/457,379, filed on Dec. 2, 2021, granted, now 11,888,406.
Application 18/533,486 is a continuation of application No. 17/457,377, filed on Dec. 2, 2021, granted, now 11,876,458.
Claims priority of provisional application 63/261,544, filed on Sep. 23, 2021.
Claims priority of provisional application 63/261,545, filed on Sep. 23, 2021.
Claims priority of provisional application 63/261,548, filed on Sep. 23, 2021.
Prior Publication US 2024/0146207 A1, May 2, 2024
Int. Cl. H02M 7/797 (2006.01); H02J 9/06 (2006.01); H02M 1/08 (2006.01); H02M 3/335 (2006.01); H02M 5/293 (2006.01); H02J 3/32 (2006.01); H02J 7/02 (2016.01)
CPC H02M 5/2932 (2021.05) [H02J 9/062 (2013.01); H02M 1/083 (2013.01); H02M 3/33584 (2013.01); H02M 7/797 (2013.01); H02J 3/32 (2013.01); H02J 7/02 (2013.01); H02J 2207/20 (2020.01)] 17 Claims
OG exemplary drawing
 
1. A method performed by a controller of an electrical system having an AC grid connection, a DC battery connection, an AC convenience outlet connection, an isolated bidirectional converter, a non-isolated converter, and a controller, the method comprising:
determining whether an AC power source is coupled to the AC grid connection; and
if an AC power source is not coupled to the AC grid connection, operating the isolated bidirectional converter in a reverse direction to provide a DC voltage to the non-isolated converter from the battery and operating the non-isolated converter as an inverter to power the convenience outlet; and
if an AC power source is coupled to the AC grid connection, operating the isolated bidirectional converter in a forward direction to charge the battery from the AC grid and operating the non-isolated converter to power the convenience outlet from the AC grid;
wherein operating the isolated bidirectional converter in a forward direction to charge the battery from the grid and operating the non-isolated converter to power the convenience outlet from the AC grid further comprises at least one of a power factor correction mode and a harmonics compensation mode, and wherein:
in the power factor correction mode, operating the isolated bidirectional converter comprises correcting the power factor of a load coupled to the convenience outlet such that the grid connection sees a unity power factor; and
in the harmonics compensation mode, operating the isolated bidirectional converter comprises compensating for harmonics introduced by the load coupled to the convenience outlet.