Patent · US Active

Calibration with feedback sensing

US11942959B2 · kind B2 · utility

0Cited by

14References

23Claims

0Family size

Assignee

Infineon Technologies AG · DE

Inventors

Mihail Jefremow · Augsburg, DE
Stefan Koeck · Ottenhofen, DE
Ralph Mueller-Eschenbach · Munich, DE
Juergen Schaefer · Oberhaching, DE
Arndt Voigtlaender · Ottobrunn, DE
David Zipperstein · Munich, DE

Key dates

Filing date	Sep 28, 2021
Grant date	Mar 26, 2024
Priority date	—
Expiry date	Jan 11, 2042

Classification

Technology area (CPC H)Electricity
CPC primaryH03M3/50
WIPO fieldBasic communication processes
WIPO sectorElectrical engineering

Abstract

A calibration circuit, including: a signal generator circuit configured to generate a modulated analog input signal, which is based on a digital input word that is modulated; an Analog-to-Digital Converter (ADC) configured to convert an analog reference signal to a digital calibration word, wherein the analog reference signal is a low-pass-filtered version of the analog input signal generated by the signal generator circuit; and a feedback circuit configured to output the digital input word by adjusting the digital calibration word depending on a digital feedback signal, which is based on a modulated version of the analog reference signal, wherein the signal generator circuit, the ADC, and the feedback circuit are provided on a same chip.

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