公开(公告)号：US20230352487A1

公开(公告)日：2023-11-02

申请号：US17625094

申请日：2021-07-01

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

Inventor： Hui YAN ,  Sichao LI ,  Dinghui CAI ,  Jihua LI ,  Yulin CHEN ,  Tao ZHANG

IPC: H01L27/095 ,  H01L23/31 ,  H01L29/20 ,  H01L29/778 ,  H01L29/66 ,  H01L21/8252 ,  H02M3/335

CPC classification number: H01L27/095 ,  H01L23/3171 ,  H01L23/3192 ,  H01L29/2003 ,  H01L29/7786 ,  H01L29/66462 ,  H01L21/8252 ,  H02M3/335

Abstract: The present invention provides a nitride-based multi-channel switching device having a plurality of transistors. The multi-channel switching device comprises a substrate, a plurality gate structures, a plurality of source electrodes and a plurality of drain electrodes. The gate structures, source electrodes and drain electrodes are grouped to form the plurality of transistors and arranged such that each gate structure disposed between a source electrode and drain electrode. Each group of the gate structures are electrically interconnected and connected to at least one gate pad corresponding to each of the transistor. Each group of the drain electrode are electrically interconnected and connected to at least one drain pad corresponding to each of the transistor. All groups of the source electrodes are electrically interconnected and connected to at least one common source pad.

公开(公告)号：US20220385194A1

公开(公告)日：2022-12-01

申请号：US17053756

申请日：2020-09-30

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

Inventor： Tao ZHANG ,  Jihua LI ,  Yulin CHEN

IPC: H02M3/335 ,  H02M1/00 ,  H02M1/44

Abstract: The subject application provides a zero-voltage switching flyback converter comprising: a transformer having a primary winding and a secondary winding; a primary switch and a secondary switch for conducting the currents flowing in the primary winding and secondary winding respectively. A timing control method for operating the flyback converter are provided to accomplish zero-voltage switch by turning on the secondary switch twice within one switching power cycle.

公开(公告)号：US20220385197A1

公开(公告)日：2022-12-01

申请号：US17053757

申请日：2020-09-30

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

Inventor： Tao ZHANG ,  Jihua LI ,  Yulin CHEN

IPC: H02M3/335 ,  H02M1/00

Abstract: The subject application provides a zero-voltage switching flyback converter comprising: a transformer having a primary winding and a secondary winding; a primary switch and a secondary switch for conducting the currents flowing in the primary winding and secondary winding respectively. A timing control method for operating the flyback converter are provided to accomplish zero-voltage switch by turning on the secondary switch twice within one switching power cycle.

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.