Patent · US Active

Multiphase oscillator circuit

US10763833B2 · kind B2 · utility

4Cited by

6References

19Claims

0Family size

Assignee

TEXAS INSTRUMENTS INCORPORATED · US

Inventors

Ernst Muellner · Munich, DE
Tobias Bernhard Fritz · Seukendorf, DE
Bradley Allen Kramer · Plano, US
Swaminathan Sankaran · Allen, US
Baher Haroun · Allen, US
Ralf Brederlow · Poing, DE

Key dates

Filing date	Dec 28, 2018
Grant date	Sep 1, 2020
Priority date	—
Expiry date	Dec 28, 2038

Classification

Technology area (CPC H)Electricity
CPC primaryH03K3/014
WIPO fieldBasic communication processes
WIPO sectorElectrical engineering

Abstract

In described examples, a ring oscillator includes a series of N stages in a first ring. Each stage includes a respective output terminal coupled to a respective input terminal of a next one of the stages in the first ring. N is a positive odd-numbered integer of at least three. A series of N level shifters in a second ring are respectively connected to the N stages. Each level shifter receives a respective clock output from a respective output terminal of a stage to which it is connected and generates a respective boosted clock output in response thereto. The boosted clock output is coupled to control an impedance state of a next one of the level shifters in the second ring.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.