Measuring assembly

Abstract

The invention disclosure relates to a measuring assembly for measuring a parameter on an electrical device, in particular an electric motor. The electrical device is controlled by means of an inverter circuit. The measuring assembly has a measuring circuit which is electrically connected, by means of a measuring line, to a sensor unit having at least one sensor output of the inverter circuit. At least two different inverter output potentials can be applied to the control line depending on the switching state of the inverter output or of the inverter circuit. The measuring circuit is designed to transmit an output signal to the sensor unit and to detect and electrical measurement variable on the measuring line and/or the control line. On the basis of the received output signal, the sensor unit influences the electrical measurement variable depending on the parameter to be detected, for example the temperature. For example, for this purpose the sensors may have a parameter-dependent resistor.

Dependencies are inferred from the claim text.