Method for monitoring the electrical properties of a load circuit controlled in a clocked manner and circuit system for performing the method
US8786294B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 8, 2010 |
| Grant date | Jul 22, 2014 |
| Priority date | — |
| Expiry date | Oct 14, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R31/2837
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method and a circuit system for monitoring the electrical properties of a load circuit controlled in a clocked manner, the load circuit having at least one ohmic component and at least one inductive component, having the following steps: establishing at least one first control signal and one second control signal, the control signals being established in such a way that, in the case of activation of the load circuit using the first control signal, the inductive behavior of the load circuit predominates and, in the case of activation of the load circuit using the second control signal, the ohmic behavior of the load circuit predominates, acquiring at least one measured variable, which is a function of the control signal and the ohmic and/or inductive components, in the case of activation of the load circuit using the first control signal and in the case of activation of the load circuit using the second control signal, ascertaining the deviations of the measured variables from measured variables which are expected on the basis of the nominal values of the inductive and ohmic components, classifying the state of the load circuit on the basis of the ascertained deviations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.