公开(公告)号：US20210021199A1

公开(公告)日：2021-01-21

申请号：US16928728

申请日：2020-07-14

Applicant: Texas Instruments Incorporated

Inventor： Pei-Hsin Liu ,  Cheng Liu

IPC: H02M3/335 ,  H02M1/08

Abstract: A converter system (100) includes a transformer (102) having a primary side (104) and a secondary side (106), a first switch (114) with a first terminal (1151) coupled to the primary side (104) and a second terminal (1152) coupled to a voltage supply terminal, a second switch (116) coupled to the first terminal (1151) of the first switch (114), loop control circuitry (119), coupled to the secondary side (106), and configured to generate an offset signal based on an output voltage provided at the secondary side (106) and to generate a compensated signal by compensating the offset signal to a sensed signal being representative of a first current flowing through the primary side (104), and switch control circuitry (120), coupled to the loop control circuitry (119), and configured to operate the first and second switches (114, 116) based on the compensated signal.

公开(公告)号：US11509227B2

公开(公告)日：2022-11-22

申请号：US16928728

申请日：2020-07-14

Applicant: Texas Instruments Incorporated

Inventor： Pei-Hsin Liu ,  Cheng Liu

IPC: H02M3/335 ,  H02M1/34

Abstract: A converter system (100) includes a transformer (102) having a primary side (104) and a secondary side (106), a first switch (114) with a first terminal (1151) coupled to the primary side (104) and a second terminal (1152) coupled to a voltage supply terminal, a second switch (116) coupled to the first terminal (1151) of the first switch (114), loop control circuitry (119), coupled to the secondary side (106), and configured to generate an offset signal based on an output voltage provided at the secondary side (106) and to generate a compensated signal by compensating the offset signal to a sensed signal being representative of a first current flowing through the primary side (104), and switch control circuitry (120), coupled to the loop control circuitry (119), and configured to operate the first and second switches (114, 116) based on the compensated signal.