公开(公告)号：US12199611B2

公开(公告)日：2025-01-14

申请号：US18171413

申请日：2023-02-20

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Vishnu Ravinuthula ,  Tianyu Chang

IPC: H03K3/03 ,  H03K3/014 ,  H03K5/135

Abstract: An oscillator circuit includes a ring oscillator and a ramp generator. The ring oscillator includes a first inverter and a second inverter. The first inverter has and a first inverter input, a first inverter output, and a first power terminal. The second inverter has a second inverter input, a second inverter output, and a second power terminal. The second inverter input is coupled to the first inverter output and the second inverter output is coupled to the first inverter input. The ramp generator circuit has a ramp output coupled to the first power terminal and the second power terminal.

公开(公告)号：US20240283433A1

公开(公告)日：2024-08-22

申请号：US18171413

申请日：2023-02-20

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Vishnu RAVINUTHULA ,  Tianyu Chang

IPC: H03K3/03 ,  H03K3/014 ,  H03K5/135

CPC classification number: H03K3/0315 ,  H03K3/014 ,  H03K5/135

Abstract: An oscillator circuit includes a ring oscillator and a ramp generator. The ring oscillator includes a first inverter and a second inverter. The first inverter has and a first inverter input, a first inverter output, and a first power terminal. The second inverter has a second inverter input, a second inverter output, and a second power terminal. The second inverter input is coupled to the first inverter output and the second inverter output is coupled to the first inverter input. The ramp generator circuit has a ramp output coupled to the first power terminal and the second power terminal.

公开(公告)号：US11552624B1

公开(公告)日：2023-01-10

申请号：US17491343

申请日：2021-09-30

Applicant: Texas Instruments Incorporated

Inventor： Taisuke Kazama ,  Saurav Bandyopadhyay ,  Tianyu Chang ,  Huy Le Nhat Nguyen

IPC: H03K4/06 ,  H03K4/94 ,  H03K5/1252

Abstract: In described examples of a ramp circuit, a first terminal of a capacitor is coupled to a ramp terminal and a second capacitor terminal is coupled to a return terminal. A charge source has an input terminal coupled to a supply terminal and a charge output terminal. A resistor has a first terminal coupled to the return terminal. A first switch is coupled between the ramp terminal and a second terminal of the resistor. A second switch is coupled between the charge output terminal and the ramp terminal.