Patent · US Active

Comparator with self-limiting positive feedback

US8476935B2 · kind B2 · utility

2Cited by

8References

14Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Robert Wolf · Dresden, DE
Christoph Lang · Palo Alto, US
Xinyu Xing · San Jose, US
Sam Kavusi · Menlo Park, US

Key dates

Filing date	Jul 2, 2009
Grant date	Jul 2, 2013
Priority date	—
Expiry date	Oct 10, 2029

Classification

Technology area (CPC H)Electricity
CPC primaryH03K5/2481
WIPO fieldBasic communication processes
WIPO sectorElectrical engineering

Abstract

A method and circuit for attenuating positive feedback in a comparator in one embodiment includes an amplifier configured to compare a first input signal with a second input signal and to provide an output based upon the comparison, a non-linear function with a first input operably connected to an output of the amplifier, and a feedback loop operably connected to the output of the non-linear function and to a second input of the non-linear function, the feedback loop including a feedback limiting circuit configured to attenuate a feedback signal to the second input of the non-linear function.

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