US 12,142,964 B2
High efficiency control method for ups
Andraw Chih-Feng Ho, Taoyuan District (TW); and Kuo-Liang Lee, Taipei (TW)
Assigned to SCHNEIDER ELECTRIC IT CORPORATION, Foxboro, MA (US)
Filed by SCHNEIDER ELECTRIC IT CORPORATION, Foxboro, MA (US)
Filed on May 5, 2023, as Appl. No. 18/143,792.
Application 18/143,792 is a continuation of application No. 17/485,679, filed on Sep. 27, 2021, granted, now 11,689,047.
Claims priority of application No. 202011163672.6 (CN), filed on Oct. 27, 2020.
Prior Publication US 2023/0352970 A1, Nov. 2, 2023
Int. Cl. H02J 9/06 (2006.01); H02M 1/00 (2006.01); H02M 5/458 (2006.01)
CPC H02J 9/062 (2013.01) [H02M 1/007 (2021.05); H02M 5/4585 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An uninterruptible power supply (UPS) comprising:
a first connection configured to receive first power;
a second connection configured to receive second power;
an output configured to provide output power to a load;
a charger coupled to the first connection and configured to receive first power provided via the first connection and convert the first power into first DC power having a first voltage level;
a rectifier coupled to the second connection and configured to receive second power provided via the second connection and convert the second power into DC power having a second voltage level;
a DC bus coupled to the rectifier and configured to receive the DC power having the second voltage level;
a first converter coupled to DC bus and configured to convert DC power into DC power having the second voltage level; and
a second converter coupled to the DC bus and configured to convert DC power from the DC bus into output power and provide the output power to the output.