Patent · US Active

Circuit arrangement and method for detecting a capacitance and/or a change in a capacitance of a capacitive component

US9541590B2 · kind B2 · utility

3Cited by

3References

11Claims

0Family size

Assignee

Brose Fahrzeugteile GmbH & Co. Kommanditgesellschaft, Hallstadt · DE

Inventors

Udo Geuther · Bamberg, DE
Ralf Daiminger · Bamberg, DE
Detlef Russ · Renningen, DE

Key dates

Filing date	Feb 4, 2015
Grant date	Jan 10, 2017
Priority date	—
Expiry date	Feb 4, 2035

Classification

Technology area (CPC H)Electricity
CPC primaryH03K2217/960715
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

The present invention relates to a circuit arrangement for detecting a capacitance of a capacitive component and/or a change in the capacitance of a capacitive component, which circuit arrangement comprises, inter alia a monostable flipflop controllable by a control signal and having at least two inputs and one output, wherein a first input of the flipflop is provided for the control signal, and a second input is connected to a capacitive component. The circuit arrangement further comprises a conversion device, which is connected to the output of the monostable flipflop, and an evaluation unit, which is connected to the conversion device in order to evaluate the signal voltage and from this to generate at least one detection value, which indicates the capacitance and/or a change in the capacitance of the capacitive component.

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