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11.发明授权公开(公告)号：US11329478B2
公开(公告)日：2022-05-10
申请号：US16180409
申请日：2018-11-05
Applicant: DELTA ELECTRONICS, INC.
Inventor： Wen-Lung Huang , Sheng-Hua Li
IPC: H02H7/12
Abstract: A power conversion system with abnormal energy protection includes a plurality of DC input power sources, a plurality of DC power converters, two output capacitors, and a protection circuit. An input side of each DC power converter is correspondingly coupled to one of the DC input power sources, and output sides of the DC power converters are coupled in parallel to each other to form a DC output bus. Two output capacitors are coupled in series between a positive voltage end and a negative voltage end of the DC output bus. The protection circuit is coupled between the DC input power sources and the two output capacitors. When one of the two output capacitors is abnormal, the protection circuit decouples the DC input power sources from the two output capacitors in a shorted-circuit manner.
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12.发明授权公开(公告)号：US11811327B2
公开(公告)日：2023-11-07
申请号：US17972290
申请日：2022-10-24
Applicant: DELTA ELECTRONICS, INC.
Inventor： Sheng-Hua Li , Wen-Lung Huang
CPC classification number: H02M3/24 , H02M1/009 , H02J3/381 , H02J7/007 , H02J2207/20 , H02J2300/24 , H02M1/007 , H02M3/285
Abstract: A power apparatus applied in a solid state transformer structure includes an AC-to-DC conversion unit, a first DC bus, and a plurality of bi-directional DC conversion units. First sides of the bi-directional DC conversion units are coupled to the first DC bus. Second sides of the bi-directional DC conversion units are configured to form at least one second DC bus, and the number of the at least one second DC bus is a bus number. The bi-directional DC conversion units receive a bus voltage of the first DC bus and convert the bus voltage into at least one DC voltage, or the bi-directional DC conversion units receive at least one external DC voltage and convert the at least one external DC voltage into the bus voltage.
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公开(公告)号：US11714112B2
公开(公告)日：2023-08-01
申请号：US17181662
申请日：2021-02-22
Applicant: DELTA ELECTRONICS, INC.
Inventor： Li-Ching Yang , Wen-Lung Huang , Sheng-Hua Li
CPC classification number: G01R27/2605 , G01R19/22 , H02M1/00 , H03F3/45 , H02M1/0009 , H02M7/02 , H03F2200/462
Abstract: A detection apparatus for unbalanced DC link capacitor voltage, the DC link provides a DC voltage and includes a plurality of capacitors coupled in series to two ends of the DC link and a plurality of balanced resistors coupled in series to two ends of the DC link and corresponding to the capacitors. The detection apparatus includes a plurality of sense resistors and a current sensor. One end of each sense resistor is coupled to a common-connected node of two capacitors, and the other end thereof is coupled to a common-connected node of two balanced resistors. The current sensor is coupled to one of the sense resistors and measures a current value of a current flowing through the sense resistor coupled to the current sensor.
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公开(公告)号：US20230043969A1
公开(公告)日：2023-02-09
申请号：US17451532
申请日：2021-10-20
Applicant: Delta Electronics, Inc.
Inventor： Sheng-Hua Li , Chun-Han Lin , Wen-Lung Huang
IPC: G02B6/42
Abstract: A connector for a system circuit board or a power module is provided. The connector includes a main body and an optical connection mechanism. The main body includes a first connecting terminal and a second connecting terminal. The first connecting terminal and the second connecting terminal are power contacts or signal contacts. The optical fiber connection mechanism is embedded within the main body. The optical fiber connection mechanism is disposed between the first connecting terminal and the second connecting terminal. Since the optical fiber connection mechanism is embedded within the main body, it is not necessary to specifically remove the optical fiber cable when the power module is detached from the cabinet. Moreover, the appearance of the product is more aesthetically-pleasing, and the maintaining speed and the product reliability are increased.
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Patent Agency Ranking
公开(公告)号：US11336192B2
公开(公告)日：2022-05-17
申请号：US16675506
申请日：2019-11-06
Applicant: DELTA ELECTRONICS, INC.
Inventor： Wen-Lung Huang , Sheng-Hua Li
Abstract: A three-phase power apparatus with bidirectional power conversion applied to charge a battery of an electric vehicle. The three-phase charging apparatus includes an AC-to-DC conversion unit, a first DC bus, a first DC-to-DC conversion unit, a second DC bus, and a second DC-to-DC conversion unit. The first DC bus is coupled to the AC-to-DC conversion unit. The first DC-to-DC conversion unit includes an isolated transformer, a resonant tank, a first bridge arm assembly, and a second bridge arm assembly. The first bridge arm assembly is coupled to the first DC bus and a primary side of the isolated transformer. The second bridge arm assembly is coupled a secondary side of the isolated transformer. The second DC bus is coupled to the second bridge arm assembly. The second DC-to-DC conversion unit is coupled to the second DC bus and the battery.
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公开(公告)号：US11296609B2
公开(公告)日：2022-04-05
申请号：US16675506
申请日：2019-11-06
Applicant: DELTA ELECTRONICS, INC.
Inventor： Wen-Lung Huang , Sheng-Hua Li
Abstract: A three-phase power apparatus with bidirectional power conversion applied to charge a battery of an electric vehicle. The three-phase charging apparatus includes an AC-to-DC conversion unit, a first DC bus, a first DC-to-DC conversion unit, a second DC bus, and a second DC-to-DC conversion unit. The first DC bus is coupled to the AC-to-DC conversion unit. The first DC-to-DC conversion unit includes an isolated transformer, a resonant tank, a first bridge arm assembly, and a second bridge arm assembly. The first bridge arm assembly is coupled to the first DC bus and a primary side of the isolated transformer. The second bridge arm assembly is coupled a secondary side of the isolated transformer. The second DC bus is coupled to the second bridge arm assembly. The second DC-to-DC conversion unit is coupled to the second DC bus and the battery.
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17.发明授权公开(公告)号：US11876459B2
公开(公告)日：2024-01-16
申请号：US17323758
申请日：2021-05-18
Applicant: DELTA ELECTRONICS, INC.
Inventor： Wen-Lung Huang , Sheng-Hua Li
CPC classification number: H02M7/217 , H02J7/02 , H02J2207/20
Abstract: A power conversion system applied to a solid state transformer includes a DC link, a plurality of capacitors, and a plurality of power conversion module assemblies. The plurality of capacitors is coupled in series between a positive bus and a negative bus of the DC link. Each of the power conversion module assemblies has a plurality of DC conversion modules. In any of the power conversion module assemblies, input sides of the DC conversion modules are connected in series to form two input ends of the power conversion module assembly, and output sides of the DC conversion modules are connected in parallel to form two output ends of the power conversion module assembly. Each of the plurality of power conversion module assemblies is correspondingly connected to each of the plurality of capacitors.
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18.发明授权公开(公告)号：US11515795B2
公开(公告)日：2022-11-29
申请号：US16863318
申请日：2020-04-30
Applicant: DELTA ELECTRONICS, INC.
Inventor： Sheng-Hua Li , Wen-Lung Huang
Abstract: A power apparatus applied in a solid state transformer structure includes an AC-to-DC conversion unit, a first DC bus, and a plurality of bi-directional DC conversion units. First sides of the bi-directional DC conversion units are coupled to the first DC bus. Second sides of the bi-directional DC conversion units are configured to form at least one second DC bus, and the number of the at least one second DC bus is a bus number. The bi-directional DC conversion units receive a bus voltage of the first DC bus and convert the bus voltage into at least one DC voltage, or the bi-directional DC conversion units receive at least one external DC voltage and convert the at least one external DC voltage into the bus voltage.
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19.发明授权公开(公告)号：US10944338B2
公开(公告)日：2021-03-09
申请号：US16562074
申请日：2019-09-05
Applicant: DELTA ELECTRONICS, INC.
Inventor： Wen-Lung Huang , Sheng-Hua Li
Abstract: A power apparatus applied in an SST structure includes a first AC-to-DC conversion unit, a first DC bus, an isolated transformer, a DC-to-AC conversion unit, a second AC-to-DC conversion unit, and a second DC bus. The first AC-to-DC conversion unit has a first three-level bridge arm and a second three-level bridge arm. The first DC bus provides a first DC voltage. The isolated transformer has a primary side and a secondary side. The DC-to-AC conversion unit has a third three-level bridge arm and a fourth three-level bridge arm. The second AC-to-DC conversion unit has a fifth three-level bridge arm and a sixth three-level bridge arm. The second DC bus provides a second DC voltage.
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