公开(公告)号：US11689097B2

公开(公告)日：2023-06-27

申请号：US17308517

申请日：2021-05-05

Applicant: Analog Devices, Inc.

Inventor： Wen Chuen Liu ,  Xugang Ke ,  Min Chen ,  Wei Gu

IPC: H02M3/335 ,  H02M1/36

CPC classification number: H02M1/36 ,  H02M3/33507

Abstract: A UHV-LV interface circuit that is capable of the following, among other things: 1) starting up a primary controller of a power converter circuit with a precisely controlled startup charging profile; 2) performing pulse-based line-voltage sensing with reduced power and improved sensing accuracy; and 3) discharging a capacitor, e.g., class-X2 capacitor, with a stable supply voltage for the controller. The UHV-LV interface circuit can use a single UHV device, such as a single depletion-mode transistor, e.g., field-effect transistor (FET).

公开(公告)号：US20230246556A1

公开(公告)日：2023-08-03

申请号：US17587256

申请日：2022-01-28

Applicant: Analog Devices, Inc.

Inventor： Wei Gu ,  Siyuan Chen ,  Yuchen Yang

IPC: H02M3/335

CPC classification number: H02M3/33584 ,  H02M3/33573 ,  H02M3/33592

Abstract: An apparatus including a bidirectional power converter circuit. The power converter circuit includes a primary circuit side including a plurality of primary switches, an isolation transformer, and a secondary circuit side separated from the primary circuit side by the isolation transformer. The secondary circuit side includes an inductor, a rectifier circuit coupled to the inductor and configured to receive energy from the primary circuit side and provide energy to the primary circuit side, and a clamp circuit coupled to the inductor and configured to provide a reset voltage to the inductor that prevents inductor current runaway.

公开(公告)号：US11804782B2

公开(公告)日：2023-10-31

申请号：US17587256

申请日：2022-01-28

Applicant: Analog Devices, Inc.

Inventor： Wei Gu ,  Siyuan Chen ,  Yuchen Yang

IPC: H02M3/335

CPC classification number: H02M3/33584 ,  H02M3/33573 ,  H02M3/33592

Abstract: An apparatus including a bidirectional power converter circuit. The power converter circuit includes a primary circuit side including a plurality of primary switches, an isolation transformer, and a secondary circuit side separated from the primary circuit side by the isolation transformer. The secondary circuit side includes an inductor, a rectifier circuit coupled to the inductor and configured to receive energy from the primary circuit side and provide energy to the primary circuit side, and a clamp circuit coupled to the inductor and configured to provide a reset voltage to the inductor that prevents inductor current runaway.

公开(公告)号：US20220360165A1

公开(公告)日：2022-11-10

申请号：US17308517

申请日：2021-05-05

Applicant: Analog Devices, Inc.

Inventor： Wen Chuen Liu ,  Xugang Ke ,  Min Chen ,  Wei Gu

IPC: H02M1/36 ,  H02M3/335

Abstract: A UHV-LV interface circuit that is capable of the following, among other things: 1) starting up a primary controller of a power converter circuit with a precisely controlled startup charging profile; 2) performing pulse-based line-voltage sensing with reduced power and improved sensing accuracy; and 3) discharging a capacitor, e.g., class-X2 capacitor, with a stable supply voltage for the controller. The UHV-LV interface circuit can use a single UHV device, such as a single depletion-mode transistor, e.g., field-effect transistor (FET).