公开(公告)号：US11081958B2

公开(公告)日：2021-08-03

申请号：US16805251

申请日：2020-02-28

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Jian Liang ,  Weicheng Zhang ,  Linghan Xie

IPC: H02M3/156 ,  H02M1/32

Abstract: A converter system includes a first switch, a first sensing unit configured to generate a first sensed signal proportional to a current through the first switch, a second sensing unit (118) configured to generate a second sensed signal based on a difference between a reference voltage and a feedback voltage, a DC compensation unit configured to generate a slope peak DC signal relative to a slope peak of a slope compensation signal, and a signal combination unit configured to generate a control signal based on the first and second sensed signals, the slope compensation signal and the slope peak DC signal to switch off the first switch.

公开(公告)号：US20210119533A1

公开(公告)日：2021-04-22

申请号：US16805251

申请日：2020-02-28

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Jian Liang ,  Weicheng Zhang ,  Linghan Xie

IPC: H02M3/156 ,  H02M1/32

Abstract: A converter system includes a first switch, a first sensing unit configured to generate a first sensed signal proportional to a current through the first switch, a second sensing unit (118) configured to generate a second sensed signal based on a difference between a reference voltage and a feedback voltage, a DC compensation unit configured to generate a slope peak DC signal relative to a slope peak of a slope compensation signal, and a signal combination unit configured to generate a control signal based on the first and second sensed signals, the slope compensation signal and the slope peak DC signal to switch off the first switch.

公开(公告)号：US10666144B1

公开(公告)日：2020-05-26

申请号：US16449659

申请日：2019-06-24

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Linghan Xie ,  Jianzhang Xie ,  Wei Zhao ,  Weicheng Zhang

IPC: H02M3/158 ,  H02M3/335 ,  G05F1/10 ,  H02M1/38 ,  H02M1/00

Abstract: A DC-DC converter controller includes a transistor driver, a flip-flop, a comparator, an integrator circuit, a switch, and a pulse generator circuit. The flip-flop includes an output coupled to an input of the transistor driver. The comparator includes an output coupled an input of the flip-flop. The integrator circuit includes an output coupled to an input of the comparator. The switch includes a first terminal coupled to the output of the integrator circuit, and a second terminal coupled to ground. The pulse generator circuit includes an input coupled to an output of the transistor driver, and an output coupled to a third terminal of the switch.