公开(公告)号：US20220256707A1

公开(公告)日：2022-08-11

申请号：US17376133

申请日：2021-07-14

Applicant: INNOSCIENCE (SUZHOU) TECHNOLOGY CO., LTD.

Inventor： Yanbo ZOU ,  Fada DU ,  Chao TANG ,  Wenjie LIN

IPC: H05K1/16 ,  H05K1/11 ,  H02M3/335 ,  H01F27/28

Abstract: The present invention provides a multi-functional printed circuit board (PCB) for assembling a plurality of components of a power converter in to a single package. The PCB comprises: one or more planar coils respectively formed on one or more PCB layers and aligned with each other for constructing the transformer and the coupler; and a plurality of conducting traces and vias for providing electrical connection among the plurality of components of the power converter.

公开(公告)号：US20220255447A1

公开(公告)日：2022-08-11

申请号：US17376129

申请日：2021-07-14

Applicant: INNOSCIENCE (SUZHOU) TECHNOLOGY CO., LTD.

Inventor： Yanbo ZOU ,  Fada DU ,  Chao TANG ,  Wenjie LIN

IPC: H02M3/335 ,  H01F27/28 ,  H01F27/24 ,  H01F27/36 ,  H02M1/08

Abstract: The present invention provides a high efficiency, high density GaN-based power converter comprising: a transformer; a magnetic coupler; a primary switch; a secondary switch; a primary controller; a secondary controller; a multi-layered print circuit board (PCB) comprising: one or more planar coils respectively formed on one or more PCB layers and aligned with each other for constructing the transformer and the coupler; and a plurality of conducting traces and vias for providing electrical connection among the transformer, the coupler, a primary switch, a secondary switch, a primary controller and a secondary controller. The power converter further comprises a pair of ferrite cores being fixed to a top surface and a bottom surface of the PCB respectively and commonly shared by the transformer and the coupler.

公开(公告)号：US20230155513A1

公开(公告)日：2023-05-18

申请号：US17419715

申请日：2021-02-10

Applicant: INNOSCIENCE (SUZHOU) TECHNOLOGY CO., LTD.

Inventor： Yanbo ZOU ,  Fada DU ,  Chao TANG ,  Wenjie LIN

IPC: H02M3/335 ,  H02M3/00 ,  H01F27/28 ,  H05K1/16 ,  H05K1/18 ,  H05K3/30

CPC classification number: H02M3/33576 ,  H01F27/2804 ,  H02M3/003 ,  H05K1/18 ,  H05K1/165 ,  H05K3/30 ,  H01F2027/2819 ,  H05K2201/086 ,  H05K2201/0723

Abstract: The present invention provides a high efficiency, high density GaN-based power converter comprising: a transformer; a magnetic coupler; a primary switch; a secondary switch; a primary controller; a secondary controller; a multi-layered print circuit board (PCB) comprising: one or more planar coils respectively formed on one or more PCB layers and aligned with each other for constructing the transformer and the coupler; and a plurality of conducting traces and vias for providing electrical connection among the transformer, the coupler, a primary switch, a secondary switch, a primary controller and a secondary controller. The power converter further comprises a pair of ferrite cores being fixed to a top surface and a bottom surface of the PCB respectively and commonly shared by the transformer and the coupler.

公开(公告)号：US20220255446A1

公开(公告)日：2022-08-11

申请号：US17376102

申请日：2021-07-14

Applicant: INNOSCIENCE (SUZHOU) TECHNOLOGY CO., LTD.

Inventor： Yanbo ZOU ,  Fada DU ,  Chao TANG ,  Wenjie LIN

IPC: H02M3/335 ,  H05K1/16 ,  H05K1/11 ,  H01F27/28 ,  H02M1/00

Abstract: The present invention provides a high efficiency, high density GaN-based power converter comprising: a transformer; a magnetic coupler; a primary switch; a secondary switch; a primary controller; a secondary controller; a multi-layered print circuit board (PCB) comprising: one or more planar coils respectively formed on one or more PCB layers and aligned with each other for constructing the transformer and the coupler; and a plurality of conducting traces and vias for providing electrical connection among the transformer, the coupler, a primary switch, a secondary switch, a primary controller and a secondary controller. The power converter further comprises a pair of ferrite cores being fixed to a top surface and a bottom surface of the PCB respectively and commonly shared by the transformer and the coupler.

公开(公告)号：US20220254885A1

公开(公告)日：2022-08-11

申请号：US17376130

申请日：2021-07-14

Applicant: INNOSCIENCE (SUZHOU) TECHNOLOGY CO., LTD.

Inventor： Yanbo ZOU ,  Fada DU ,  Chao TANG ,  Wenjie LIN

IPC: H01L29/20 ,  H05K1/02 ,  H01L29/778 ,  H01L23/14 ,  H05K1/11 ,  H01L23/498 ,  H01L23/552 ,  H01L21/50 ,  H01F41/04 ,  H01F27/28 ,  H02M3/335

Abstract: The present invention provides a multi-functional printed circuit board (PCB) for assembling a plurality of components of a power converter in to a single package. The PCB comprises: one or more planar coils respectively formed on one or more PCB layers and aligned with each other for constructing the transformer and the coupler; and a plurality of conducting traces and vias for providing electrical connection among the plurality of components of the power converter.

公开(公告)号：US20230031789A1

公开(公告)日：2023-02-02

申请号：US17419710

申请日：2021-04-16

Applicant: INNOSCIENCE (SUZHOU) TECHNOLOGY CO., LTD.

Inventor： Yanbo ZOU ,  Fada DU ,  Wenbin XIE ,  Chao TANG

IPC: H03K17/687 ,  H02M1/00 ,  H02M1/08

Abstract: The present disclosure provides a controller for controlling a GaN-based semiconductor device. The controller is configured to receive a current sensing signal VCS which is indicative of a drain-to-source current of the GaN-based semiconductor device and generate a control driving signal VDRV to the GaN-based semiconductor device such that a gate-to-source voltage VGS applied to the GaN-based semiconductor device for switching on the GaN-based semiconductor device is stabilized to a voltage value equal to a reference voltage Vref over an on-time duration. Impact of the change in the voltage drop across the current sensing resistor to the operation of the GaN-based semiconductor device is eliminated.

公开(公告)号：US20220329165A1

公开(公告)日：2022-10-13

申请号：US17429358

申请日：2021-04-12

Applicant: INNOSCIENCE (SUZHOU) TECHNOLOGY CO., LTD.

Inventor： Yanbo ZOU ,  Yulin CHEN ,  Fada DU ,  Tao ZHANG

IPC: H02M3/335 ,  H02M1/00

Abstract: The subject application provides a power converter with lossless current sensing capability. The power converter comprises: a transformer, a primary switch for conducting or blocking a current flowing in a primary winding of the transformer, a controller configured to generate a first control signal through a first control node to control the primary switch; and a current sensing circuit configured for sensing a current flowing in the primary winding. The current sensing circuit comprises a current sensing switch that is configured to be normally open and has a gate length smaller than a gate length of the primary switch. A relatively simple current sensing circuit is achieved and the overall power efficiency is improved.

公开(公告)号：US20220256700A1

公开(公告)日：2022-08-11

申请号：US17376132

申请日：2021-07-14

Applicant: INNOSCIENCE (SUZHOU) TECHNOLOGY CO., LTD.

Inventor： Yanbo ZOU ,  Fada DU ,  Chao TANG ,  Wenjie LIN

IPC: H05K1/11 ,  H05K1/02 ,  H05K1/16 ,  H01F27/28 ,  H02M3/335 ,  H01L29/20

Abstract: The present invention provides a multi-functional printed circuit board (PCB) for assembling a plurality of components of a power converter in to a single package. The PCB comprises: one or more planar coils respectively formed on one or more PCB layers and aligned with each other for constructing the transformer and the coupler; and a plurality of conducting traces and vias for providing electrical connection among the plurality of components of the power converter.