公开(公告)号：US20240154538A1

公开(公告)日：2024-05-09

申请号：US18550686

申请日：2022-07-07

Applicant: POWER LSI CO.,LTD.

Inventor： Won Tae LEE ,  Won Ji LEE ,  Chuen Sik JUNG ,  Gyu Won LEE

IPC: H02M3/335 ,  H02M1/08 ,  H02M1/32 ,  H02M3/00

CPC classification number: H02M3/33592 ,  H02M1/08 ,  H02M1/32 ,  H02M3/01 ,  H02M3/33571 ,  H02M1/4208

Abstract: According to an embodiment of the present disclosure, a resonant convertor for a power supply device may comprise a synchronous rectifier comprising at least one MOSFET to convert an alternating current into a direct current; a circuit isolation device to receive a state signal from a component included in a first circuit module and to generate a first synchronous rectifier control signal based on the received state signal; a load state detection module to detect a state of a load stage included in a second circuit side and to generate a second synchronous rectifier control signal based on the detected state; and a synchronous rectifier control module to receive the first and the second synchronous rectifier control signals and to control the synchronous rectifier based on at least one of the first and the second synchronous rectifier control signals.

公开(公告)号：US11736002B2

公开(公告)日：2023-08-22

申请号：US18041843

申请日：2021-06-28

Applicant: Power LSI Co. ltd

Inventor： Won Tae Lee ,  Won Ji Lee ,  Chang Sik Shin ,  Chuen Sik Jung ,  Gyu Won Lee

IPC: H02M3/158 ,  H02M1/36 ,  H02M1/08 ,  H02M3/157 ,  H02M1/00

CPC classification number: H02M1/36 ,  H02M1/08 ,  H02M3/157 ,  H02M3/158 ,  H02M1/0003 ,  H02M1/0006

Abstract: The present invention relates to an adaptive soft start and soft stop device for a converter, and more particularly, provides an adaptive soft start and soft stop device for a converter which controls a final output voltage to be increased or decreased with a predetermined gradient by increasing a duty at a predetermined rate or increases a frequency during a start period using an input voltage Vin and an output voltage Vo and decreasing the duty at a predetermined rate or decreases a frequency during a stop period.

公开(公告)号：US12261514B2

公开(公告)日：2025-03-25

申请号：US18467774

申请日：2023-09-15

Applicant: POWER LSI CO., LTD.

Inventor： Won Tae Lee ,  Won Ji Lee ,  Chuen Sik Jung ,  Gyu Won Lee

IPC: H02M1/00

Abstract: An embodiment of the present disclosure provides a zero standby power system, comprising a power supply device comprising a plurality of power stages and a zero standby power device configured to receive an on/off signal and to control connections respectively to the plurality of power stages based on the received on/off signal, wherein the zero standby power device may comprise an on/off controller configured to be maintained to be in an operation state and to receive an on/off signal at an arbitrary time point.

公开(公告)号：US20240186881A1

公开(公告)日：2024-06-06

申请号：US18467774

申请日：2023-09-15

Applicant: POWER LSI CO.,LTD.

Inventor： Won Tae LEE ,  Won Ji LEE ,  Chuen Sik JUNG ,  Gyu Won LEE

IPC: H02M1/00

CPC classification number: H02M1/0032

Abstract: An embodiment of the present disclosure provides a zero standby power system, comprising a power supply device comprising a plurality of power stages and a zero standby power device configured to receive an on/off signal and to control connections respectively to the plurality of power stages based on the received on/off signal, wherein the zero standby power device may comprise an on/off controller configured to be maintained to be in an operation state and to receive an on/off signal at an arbitrary time point.

公开(公告)号：US11736008B2

公开(公告)日：2023-08-22

申请号：US18170101

申请日：2023-02-16

Applicant: Power LSI Co. ltd

Inventor： Won Tae Lee ,  Won Ji Lee ,  Chang Sik Shin ,  Chuen Sik Jung ,  Gyu Won Lee

IPC: H02M3/156 ,  H02M1/00

CPC classification number: H02M3/156 ,  H02M1/0025 ,  H02M1/0045

Abstract: The present invention relates to a multi-power supply device capable of controlling a sequence, and more particularly, to a multi-power supply device capable of controlling a sequence for a circuit in which two or more power sources are supplied from the outside and when one of the power sources has a problem so that the power is not supplied to an internal block, an internal voltage is stably supplied from another power source.