公开(公告)号：US12088108B2

公开(公告)日：2024-09-10

申请号：US17342229

申请日：2021-06-08

Applicant: Hamilton Sundstrand Corporation

Inventor： Yongduk Lee ,  Xin Wu ,  Parag M. Kshirsagar ,  Bo Liu

IPC: H02J4/00 ,  B64D41/00 ,  H02M3/155

CPC classification number: H02J4/00 ,  B64D41/00 ,  B64D2221/00 ,  H02M3/155

Abstract: Systems and methods of operating for a smart power router for boosting and protection are provided. Aspects include a power router comprising a plurality of terminals, a first DC power supply coupled to the first terminal, a second DC power supply coupled to the second terminal, a first power converter, an interface bi-directional switch coupled between the first terminal and the second terminal, a first bi-directional switch coupled between the first terminal and the third terminal, the first bi-directional switch comprising a first transistor and a second transistor, a first RL circuit, a controller configured to operate the power router in a plurality of modes comprising a first voltage boosting mode, wherein operating the power router in the first voltage boosting mode comprises operating the interface bi-directional switch in an on state, operating the first transistor in an off state, and operating the second transistor in a switching state.

公开(公告)号：US11791741B2

公开(公告)日：2023-10-17

申请号：US17224533

申请日：2021-04-07

Applicant: Hamilton Sundstrand Corporation

Inventor： Sebastian Rosado ,  Robert H. Dold ,  Bo Liu ,  Xin Wu

IPC: H02M7/00 ,  H01L23/473

CPC classification number: H02M7/003 ,  H01L23/473

Abstract: A power converter assembly includes a semi-conductor module, a heat sink mechanically connected to the semi-conductor module, a first busbar assembly on a first side of the heat sink, and a second busbar assembly on a second side of the heat sink opposite from the first side. The first and second busbar assemblies are electrically connected to one another. A power converter assembly includes a plurality of sets of semi-conductor modules, a common heat sink mechanically connected to each semi-conductor module, a first busbar assembly on a first side of the common heat sink, and a second busbar assembly on a second side of the common heat sink opposite from the first side. The first and second busbar assemblies are electrically connected to one another.

公开(公告)号：US11606086B2

公开(公告)日：2023-03-14

申请号：US17246839

申请日：2021-05-03

Applicant: Hamilton Sundstrand Corporation

Inventor： Bo Liu ,  Yongduk Lee ,  Xin Wu

IPC: H02H3/00 ,  H03K17/082 ,  H02H1/00 ,  H03K5/01 ,  H03K5/00

Abstract: A desaturation protection circuit is provided. Aspects includes a main gate driver circuit driving a gate for a switch, a desaturation gate driver circuit coupled to a drain terminal of the switch, a PWM signal supply circuit configured to supply a PWM signal to the desaturation gate driver circuit, and a delay circuit, the delay circuit configured to delay the PWM signal from the PWM signal supply circuit to the desaturation gate driver circuit during a turn-on event for the switch.

公开(公告)号：US20220399800A1

公开(公告)日：2022-12-15

申请号：US17345548

申请日：2021-06-11

Applicant: Hamilton Sundstrand Corporation

Inventor： Bo Liu ,  Yongduk Lee ,  Xin Wu ,  Suman Dwari

IPC: H02M1/32 ,  H02M7/217 ,  H02M7/537

Abstract: A power converter can include a first line, a second line, a capacitor line disposed between the first line and the second line, a first capacitor and a second capacitor connected to the capacitor line in series between the first line and the second line, a midpoint line connected to a midpoint between the first capacitor and the second capacitor, and a protection circuit disposed between the first capacitor and the second capacitor and configured to provide protection to one or more portions of the power converter.

公开(公告)号：US20220200268A1

公开(公告)日：2022-06-23

申请号：US17133499

申请日：2020-12-23

Applicant: Hamilton Sundstrand Corporation

Inventor： Yongduk Lee ,  Xin Wu ,  Bo Liu ,  Parag M. Kshirsagar

IPC: H02H7/09 ,  H01H71/12 ,  H02H3/087

Abstract: A solid state circuit breaker comprising, includes a first switch unit including, a first switch configured to be connected to a first terminal, a second switch connected to the first switch configured to be connected to a second terminal, a third switch connected to the second switch and configured to be connected to the second terminal, a fourth switch connected to the first switch and configured to be connected to the first terminal, and a fifth switch joining a connection of the first switch and the second switch to the connection of the third switch and the fourth switch.

公开(公告)号：US11218086B2

公开(公告)日：2022-01-04

申请号：US16827528

申请日：2020-03-23

Applicant: Hamilton Sundstrand Corporation

Inventor： Bo Liu ,  Xin Wu ,  Yongduk Lee

IPC: H02M7/5395 ,  H02M7/487 ,  H02M7/5387 ,  H02P27/14 ,  H02P6/08 ,  H02M3/335 ,  H02M1/00

Abstract: A power conversion system includes a hybrid power converter phase unit including three voltage inputs, a voltage output, a pair of outer switches between the voltage inputs and voltage output, and a pair of inner switches between the voltage inputs and the outer switches. The power conversion system includes a controller in electrical communication with the inner and outer switches. The controller is configured to selectively disable or enable the inner switches by switching the inner switches OFF or ON. A method includes selectively disabling or enabling inner switches in a hybrid power converter phase unit with a controller such that the hybrid power converter phase unit is a 3-level converter when the inner switches are ON and enabled in a 3-level mode and a 2-level converter when the inner switches are OFF and disabled in a 2-level mode.