公开(公告)号：US12278552B2

公开(公告)日：2025-04-15

申请号：US18127577

申请日：2023-03-28

Applicant: Hamilton Sundstrand Corporation

Inventor： Lei Xing ,  Suman Dwari ,  W. Warren Chen

IPC: B60L50/00 ,  B64D41/00 ,  H02M1/00 ,  H02M3/335

Abstract: A system can include a bi-directional converter circuit comprising a plurality of switches and a flying capacitor configured to experience a low voltage or a high voltage, and a control module operatively connected to the plurality of switches to control a state of the plurality of switches. The control module can be configured to receive a sense signal indicative of a flying capacitor voltage and to control the one or more switches of the plurality of switches to charge or discharge the flying capacitor to maintain a target voltage or target voltage range.

公开(公告)号：US20240275262A1

公开(公告)日：2024-08-15

申请号：US18127577

申请日：2023-03-28

Applicant: Hamilton Sundstrand Corporation

Inventor： Lei Xing ,  Suman Dwari ,  W. Warren Chen

IPC: H02M1/00 ,  B60L50/00 ,  B64D41/00 ,  H02M3/335

CPC classification number: H02M1/0095 ,  B60L50/00 ,  B64D41/00 ,  H02M3/33584 ,  B60L2200/10 ,  B60L2210/00 ,  B64D2221/00

Abstract: A system can include a bi-directional converter circuit comprising a plurality of switches and a flying capacitor configured to experience a low voltage or a high voltage, and a control module operatively connected to the plurality of switches to control a state of the plurality of switches. The control module can be configured to receive a sense signal indicative of a flying capacitor voltage and to control the one or more switches of the plurality of switches to charge or discharge the flying capacitor to maintain a target voltage or target voltage range.

公开(公告)号：US20240258914A1

公开(公告)日：2024-08-01

申请号：US18102010

申请日：2023-01-26

Applicant: Hamilton Sundstrand Corporation

Inventor： Suman Dwari ,  W. Warren Chen ,  Lei Xing

IPC: H02M3/157 ,  H02M1/08 ,  H02M1/32

CPC classification number: H02M3/157 ,  H02M1/08 ,  H02M1/32

Abstract: A system can include a bi-directional converter circuit comprising a plurality of switches and at least one flying capacitor. One or more the plurality of switches can experience overvoltage in a fault state. The system can include a control module operatively connected to the plurality of switches to control a state of the plurality of switches. The control module can be configured to receive a sense signal indicative of flying capacitor voltage and to control the one or more switches of the plurality of switches to turn on or remain on to prevent switch overvoltage of the one or more switches if the flying capacitor voltage is outside of a normal range.