Patent · US Active

Current measurement based on a charge in a capacitor

US7863908B2 · kind B2 · utility

2Cited by

6References

16Claims

0Family size

Assignee

Infineon Technologies AG · DE

Inventors

Herwig Wappis · Finkenstein, AT
Juergen Schaefer · Oberhaching, DE

Key dates

Filing date	Nov 16, 2007
Grant date	Jan 4, 2011
Priority date	—
Expiry date	Feb 22, 2029

Classification

Technology area (CPC G)Physics
CPC primaryG01R19/0092
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A method is provided that comprises determining an amount of a first current from an amount of a charge stored in a first capacitor. Also, an apparatus is provided that comprises a reference timer circuit configured to generate a first signal indicating an expiration of a time period, and a sense circuit comprising a first capacitor and configured to sense, responsive to the first signal, a charge stored in the first capacitor, and to generate a second signal representing the sensed charge.

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