Patent · US Active

Determining a zero current of an alternating current

US10232721B2 · kind B2 · utility

0Cited by

0References

10Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Manuel Blum · Ottobrunn, DE
Thomas Komma · Ottobrunn, DE
Mirjam Mantel · Birkenfeld, DE
Monika Poebl · Munich, DE

Key dates

Filing date	Sep 15, 2014
Grant date	Mar 19, 2019
Priority date	—
Expiry date	Apr 3, 2035

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T90/16
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A circuit arrangement for detecting a zero crossing of an alternating current is provided. The circuit arrangement includes a load through which the alternating current can flow, and an evaluation unit connected to the load and configured to evaluate an electrical voltage formed at the load, and to determining zero currents. The load comprises a capacitor through which the alternating current or a current to be measured derived therefrom can flow, and the evaluation unit is configured to account for a phase shift caused by the capacitor for determining the zero currents.

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