US 12,500,521 B2
Power apparatus applied in solid state transformer structure and three-phase power system having the same
Sheng-Hua Li, Taoyuan (TW); and Wen-Lung Huang, Taoyuan (TW)
Assigned to DELTA ELECTRONICS, INC., Taoyuan (TW)
Filed by DELTA ELECTRONICS, INC., Taoyuan (TW)
Filed on Oct. 3, 2024, as Appl. No. 18/905,509.
Application 18/905,509 is a continuation of application No. 18/471,731, filed on Sep. 21, 2023, granted, now 12,143,020.
Application 18/471,731 is a continuation of application No. 17/972,290, filed on Oct. 24, 2022, granted, now 11,811,327, issued on Nov. 7, 2023.
Application 17/972,290 is a continuation of application No. 16/863,318, filed on Apr. 30, 2020, granted, now 11,515,795, issued on Nov. 29, 2022.
Claims priority of application No. 201910725524.X (CN), filed on Aug. 7, 2019.
Prior Publication US 2025/0030347 A1, Jan. 23, 2025
This patent is subject to a terminal disclaimer.
Int. Cl. H02M 1/00 (2007.01); H02M 3/24 (2006.01); H02M 7/493 (2007.01); H02J 3/38 (2006.01); H02J 7/00 (2006.01); H02M 3/28 (2006.01)
CPC H02M 3/24 (2013.01) [H02M 1/009 (2021.05); H02J 3/381 (2013.01); H02J 7/007 (2013.01); H02J 2207/20 (2020.01); H02J 2300/24 (2020.01); H02M 1/007 (2021.05); H02M 3/285 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A power apparatus assembly, the power apparatus assembly comprising:
a plurality n of power apparatuses, wherein n is a positive integer and is greater than 1, each of the plurality n of power apparatuses comprising:
an AC-to-DC conversion unit,
a first DC bus, coupled to the AC-to-DC conversion unit,
at least one DC-to-DC conversion unit, coupled to the first DC bus, and configured to convert a voltage on the first DC bus into at least one DC voltages, and
at least one second DC bus, coupled to the at least one DC-to-DC conversion unit, and configured to receive the at least one DC voltages, wherein a number of the at least one second DC bus is at least one and at most the same as a number of the least one DC-to-DC conversion unit,
wherein the at least one DC-to-DC conversion units of each power apparatus is individually connected to a separate corresponding AC-to-DC conversion unit in the power apparatus,
wherein a plurality n of AC-to-DC conversion units of the plurality n of power apparatuses are connected in series at an AC input side to receive an AC power source and controlled in an interleaved phase-shift manner.