公开(公告)号：US11152919B1

公开(公告)日：2021-10-19

申请号：US17138576

申请日：2020-12-30

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Marc Edric Davis-Marsh ,  Hakan Oner ,  Tawen Mei

IPC: H03K5/22 ,  H03K3/012 ,  H03K5/24 ,  H02M3/155 ,  H03K3/017 ,  G06F1/26

Abstract: An example of an apparatus includes a bias circuit having first and second bias circuit outputs. The apparatus also includes a comparator having first and second comparator inputs. The apparatus also includes a first capacitor coupled between the second comparator input and the second bias circuit output. The apparatus also includes a first switch coupled between the second comparator input and the second bias circuit output. The apparatus also includes a second switch coupled between the first bias circuit output and an input terminal, a third switch coupled between the input terminal and the first comparator input, and a fourth switch coupled between the first bias circuit output and the first comparator input. The apparatus also includes a second capacitor coupled between the first comparator input and the second bias circuit output.

公开(公告)号：US10686375B1

公开(公告)日：2020-06-16

申请号：US16264327

申请日：2019-01-31

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Marc Edric Davis-Marsh

IPC: H02M3/156 ,  H02M1/00 ,  H03K5/24 ,  G01R19/02

Abstract: A power converter circuit includes a power stage circuit configured to convert an input voltage to provide an output voltage. A feedback control circuit is configured to generate an error signal based on the output voltage and a reference voltage. An offset circuit is configured to apply an offset signal to the error signal based on change in a modulating frequency of a clock signal to provide an adjusted error signal. A driver circuit is configured to drive the power stage circuit based on the adjusted error signal and the clock signal.