公开(公告)号：US20230318588A1

公开(公告)日：2023-10-05

申请号：US17710533

申请日：2022-03-31

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Kyoung Min LEE ,  Satish Kumar VEMURI ,  Zhidong LIU ,  Maxim James FRANKE ,  Kory Andrew McCARTHY

IPC: H03K5/1252

CPC classification number: H03K5/1252

Abstract: In some examples, a circuit includes a capacitor having a first terminal and a second terminal, the first terminal coupled to a voltage supply terminal of the circuit. The circuit also includes a transistor having a transistor gate, a transistor drain, and a transistor source, the transistor source coupled to ground and the transistor drain coupled to an input terminal of the circuit. The transistor is configured to conduct responsive to a gate signal received at the transistor gate, the gate signal based on a signal provided at the second terminal of the capacitor. The circuit also includes a Schmitt trigger having a Schmitt trigger input coupled to the transistor drain.

公开(公告)号：US20220140823A1

公开(公告)日：2022-05-05

申请号：US17515077

申请日：2021-10-29

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Tuli Luthuli DAKE ,  Satish Kumar VEMURI ,  Ritesh Jitendra OZA ,  Laszlo BALOGH

IPC: H03K5/24 ,  H03K19/003

Abstract: An apparatus includes a differential input pair, a first resistor, a second resistor, and a comparator. The differential input pair having first and second differential inputs. The first differential input is adapted to be coupled to an output of a controller and the second differential input is adapted to be coupled to a signal ground of the controller. The first resistor is adapted to be coupled to a third resistor via the first differential input to form a first voltage divider. The second resistor is adapted to be coupled to a fourth resistor via the second differential input to form a second voltage divider. The comparator having first and second comparator inputs. The first comparator input is coupled between the first resistor and the first differential input. The second comparator input is coupled between the second resistor and the second differential input.