公开(公告)号：US20250023448A1

公开(公告)日：2025-01-16

申请号：US18220056

申请日：2023-07-10

Applicant: Lear Corporation

Inventor： Cesar RUANO ALVAREZ ,  Roser RUE OLIVE ,  Julia GINE ELIES ,  Youssef GHABBOUR ,  Ivan CASADO GARCIA ,  Marc FERRER DURAN

IPC: H02M1/08 ,  H02M3/335

Abstract: In at least one embodiment, a system is provided. The system includes a first bridge circuit, at least one transformer, a second bridge circuit, and at least one controller. The first bridge circuit includes a first plurality of switches that receives a first voltage and provides a second voltage. The transformer provides a third voltage based on the second voltage. The second bridge circuit includes a second plurality of switches that provides a fourth voltage. The controller is programmed to selectively activate at least one of the first plurality of switches and at least one of the second plurality of switches based on a predetermined modulation scheme, wherein the predetermined modulation scheme. The predetermined modulation scheme is based on at least a number of turns of the transformer, the predetermined modulation scheme minimizing a delay in selectively activating the first plurality of switches and the second plurality of switches.

公开(公告)号：US20240213882A1

公开(公告)日：2024-06-27

申请号：US18145410

申请日：2022-12-22

Applicant: Lear Corporation

Inventor： Marc FERRER DURAN ,  Cesar RUANO ALVAREZ ,  Julia GINE ELIES ,  Youssef GHABBOUR ,  Ivan CASADO GARCIA ,  Roser RUE OLIVE ,  Luis RODA CORNEJO

IPC: H02M3/335 ,  B60L53/22 ,  B60L58/18 ,  H02M1/00

CPC classification number: H02M3/33576 ,  B60L53/22 ,  B60L58/18 ,  H02M1/0035 ,  H02M3/33573 ,  B60L2210/10

Abstract: The present disclosure provides a converter including a primary stage having a plurality of primary stage switches, a secondary stage having a plurality of secondary stage switches and a capacitor, and a controller that isolates the secondary stage from a second battery, and that controls switching of the plurality of primary stage switches and the plurality of secondary stage switches to provide a plurality of bursts of energy from a first battery to the capacitor to pre-charge the capacitor to a threshold voltage, wherein after an initial burst of the plurality of bursts having an initial duration, a subsequent burst of the plurality of bursts provided has a duration equal to a duration of a preceding burst plus a time period based on a voltage of the first battery.