US 12,445,075 B2
Method and apparatus for an isolated DC/DC converter
Santhosh Krishnamoorthi, Indianapolis, IN (US); Bradford K. O. Palmer, Ham Lake, MN (US); Dakshina S. Murthy-Bellur, Plymouth, MN (US); and Minyu Cai, Maplewood, MN (US)
Assigned to Cummins Inc., Columbus, IN (US)
Appl. No. 18/030,667
Filed by Cummins Inc., Columbus, IN (US)
PCT Filed Jul. 12, 2021, PCT No. PCT/US2021/041258
§ 371(c)(1), (2) Date Apr. 6, 2023,
PCT Pub. No. WO2022/125147, PCT Pub. Date Jun. 16, 2022.
Claims priority of provisional application 63/124,417, filed on Dec. 11, 2020.
Prior Publication US 2023/0378895 A1, Nov. 23, 2023
Int. Cl. H02M 7/5387 (2007.01); B60L 58/20 (2019.01); H02P 27/06 (2006.01)
CPC H02P 27/06 (2013.01) 19 Claims
OG exemplary drawing
 
1. A power supply for use with an N-phase multiphase machine, comprising:
an inverter configured to be coupled to a DC power supply, including:
N machine switch circuits for providing N-phase machine drive signals in response to N-phase machine drive commands; and
one or more auxiliary switch circuits for providing an auxiliary AC output in response to auxiliary control commands; and
wherein the inverter is configured to provide the N-phase machine drive signals independently of the auxiliary AC output, to provide the auxiliary AC output independently of the N-phase machine drive signals, and to provide the N-phase machine drive signals simultaneously with the auxiliary AC output; and
an output stage coupled to the one or more auxiliary switch circuits to convert the auxiliary AC output to an isolated DC supply output.