US 12,231,041 B2
System and method for modular high voltage conversion ratio power converter
Minjie Chen, Princeton, NJ (US); and Shuai Jiang, Mountain View, CA (US)
Assigned to THE TRUSTEES OF PRINCETON UNIVERSITY, Princeton, NJ (US)
Appl. No. 17/600,380
Filed by The Trustees of Princeton University, Princeton, NJ (US); and Google LLC, Mountain View, CA (US)
PCT Filed Apr. 3, 2020, PCT No. PCT/US2020/026601
§ 371(c)(1), (2) Date Sep. 30, 2021,
PCT Pub. No. WO2020/206270, PCT Pub. Date Oct. 8, 2020.
Claims priority of provisional application 62/829,355, filed on Apr. 4, 2019.
Prior Publication US 2022/0166314 A1, May 26, 2022
Int. Cl. H02M 1/00 (2007.01); H02M 3/07 (2006.01); H02M 3/158 (2006.01)
CPC H02M 3/072 (2021.05) [H02M 1/007 (2021.05); H02M 1/0074 (2021.05); H02M 1/0095 (2021.05); H02M 3/1586 (2021.05); H02M 1/0058 (2021.05)] 30 Claims
OG exemplary drawing
 
1. A power converter circuit comprising:
a plurality of voltage splitting units (VSUs) coupled to a plurality of current splitting units (CSUs), the VSUs being connected to each other in series and the CSUs being connected to each other in parallel, each VSU being directly connected to a CSU without a capacitor in between, the power converter circuit configured to have an intermediate bus voltage (VBUS) between each VSU and its directly connected CSU, where the VBUS includes large voltage pulses relative to an average VBUS based on a switching frequency of the VSU;
the VSUs each having a fixed voltage conversion ratio and being operated at a lower frequency than the CSUs; and
the CSUs each having an adjustable voltage conversion ratio and being operated at a higher frequency than the VSUs.