US 11,870,366 B2
System and method for power converter interfacing with multiple series-stacked voltage domains
Minjie Chen, Princeton, NJ (US); and Robert Pilawa-Podgurski, Berkeley, CA (US)
Assigned to THE TRUSTEES OF PRINCETON UNIVERSITY, Princeton, NJ (US)
Appl. No. 17/432,793
Filed by The Trustees of Princeton University, Princeton, NJ (US); and UC Berkeley, Berkeley, CA (US)
PCT Filed Dec. 20, 2019, PCT No. PCT/US2019/067772
§ 371(c)(1), (2) Date Aug. 20, 2021,
PCT Pub. No. WO2020/171886, PCT Pub. Date Aug. 27, 2020.
Claims priority of provisional application 62/809,279, filed on Feb. 22, 2019.
Prior Publication US 2022/0045628 A1, Feb. 10, 2022
Int. Cl. H02J 7/00 (2006.01); H02M 7/5387 (2007.01); H02M 1/00 (2006.01); H02M 7/493 (2007.01)
CPC H02M 7/5387 (2013.01) [H02J 7/0013 (2013.01); H02J 7/0014 (2013.01); H02J 7/0016 (2013.01); H02M 1/0083 (2021.05); H02M 7/493 (2013.01); H02M 1/0074 (2021.05); H02M 1/0077 (2021.05)] 44 Claims
OG exemplary drawing
 
1. A power conversion circuit comprising:
a common DC bus;
a plurality of DC-AC conversion units coupled to the common DC bus, the plurality of DC-AC conversion units connected to each other in series;
at least one other DC-AC conversion unit coupled to the common DC bus; and
a multi-winding transformer comprising a magnetic core and a plurality of windings, each of the plurality of DC-AC conversion units being coupled to a corresponding winding on a first side of the multi-winding transformer and the at least one other DC-AC conversion unit being coupled to a corresponding winding on a second side of the multi-winding transformer, the second side being opposite the first side.