Circuitry including at least a delta-sigma modulator and a sample-and-hold element

US11533061B2 · kind B2 · utility

Assignee

• Hahn-Schickard-Gesellschaft für Angewandte Forschung e. V. · DE

Inventors

• Michael Maurer · Uerdingen, DE
• Markus Kuderer · Kirchzarten, DE
• Armin Taschwer · Ammerschwihr, FR

Key dates

• Filing date: Jun 4, 2021
• Grant date: Dec 20, 2022
• Expiry date: Jun 4, 2041

Classification

• Technology area (CPC H): Electricity
• CPC primary: H03M3/458
• WIPO field: Basic communication processes
• WIPO sector: Electrical engineering

Abstract

A circuitry for an incremental delta-sigma modulator includes at least an incremental delta-sigma modulator and a sample-and-hold element, the sample-and-hold element being arranged in front of the incremental delta-sigma modulator and providing an input voltage for the incremental delta-sigma modulator in the charged state, wherein the sample-and-hold element includes a capacitor for charging the input voltage for the incremental delta-sigma modulator, wherein a first switch is arranged in front of the capacitor, and a second switch is arranged behind the capacitor, wherein the first switch is open when the second switch is closed so as to provide, at the incremental delta-sigma modulator, an input voltage decreasing in amount, in particular a decaying input voltage, or wherein the second switch is open when the first switch is closed so as to charge the capacitor of the sample-and-hold element. In addition, a method of operating a circuitry for an incremental delta-sigma modulator is proposed.