公开(公告)号：US20240154516A1

公开(公告)日：2024-05-09

申请号：US18053564

申请日：2022-11-08

Applicant: Analog Devices, Inc.

Inventor： Siyuan Chen ,  Michael George Negrete

IPC: H02M1/00 ,  H02M7/04 ,  H02M7/219

CPC classification number: H02M1/0058 ,  H02M1/0043 ,  H02M7/05 ,  H02M7/219

Abstract: A soft-switching Phase-Shift Full-Bridge (PSFB) converter system may include a transformer comprising a primary side and a secondary side. Phase-leading circuitry and phase-lagging circuitry may be located on the primary side of the transformer. The phase leading a phase lagging circuitry may include one or more bridge switches. The system may further include clamping circuitry coupled to the secondary side of the transformer. The clamping circuitry configurable to, when in an active clamping mode, short the secondary side of the transformer. An inductance may be included on the primary side of the transformer to collect and store energy from an input source when the secondary side of the transformer is shorted. The energy stored in the inductance may be used to enable soft-switching of the bridge switches in the phase-lagging circuitry during a dead time or a circulating time of the bridge switches in the phase-leading circuitry.

公开(公告)号：US12255523B2

公开(公告)日：2025-03-18

申请号：US18053564

申请日：2022-11-08

Applicant: Analog Devices, Inc.

Inventor： Siyuan Chen ,  Michael George Negrete

IPC: H02M7/219 ,  H02M1/00 ,  H02M7/04

Abstract: A soft-switching Phase-Shift Full-Bridge (PSFB) converter system may include a transformer comprising a primary side and a secondary side. Phase-leading circuitry and phase-lagging circuitry may be located on the primary side of the transformer. The phase leading a phase lagging circuitry may include one or more bridge switches. The system may further include clamping circuitry coupled to the secondary side of the transformer. The clamping circuitry configurable to, when in an active clamping mode, short the secondary side of the transformer. An inductance may be included on the primary side of the transformer to collect and store energy from an input source when the secondary side of the transformer is shorted. The energy stored in the inductance may be used to enable soft-switching of the bridge switches in the phase-lagging circuitry during a dead time or a circulating time of the bridge switches in the phase-leading circuitry.