Circuits and methods for detecting line short circuits and/or line interruptions in differentially operated line networks

An inductive angle sensor, comprising:

• an inductor capacitor (LC) exciter resonant circuit, wherein the LC exciter resonant circuit is differentially operated using an integrated oscillator circuit;
• and
• a control circuit configured to:
• control a common-mode signal for the LC exciter resonant circuit vis-à-vis a predefined common-mode signal variable, and
• indicate at least one of a line short circuit or a line interruption in the LC exciter resonant circuit when at least one control or controlled variable exceeds a predefined threshold value.

An inductive angle sensor comprising:

• at least one differentially operated coil;
• an injection current source configured to inject a direct current (DC) current into the at least one differentially operated coil;
• and
• a registering circuit configured to determine a voltage drop across terminals of the at least one differentially operated coil that is caused by the DC current,
• wherein at least one of:
• the injection current source is configured to inject the DC current into the at least one differentially operated coil without the injected DC current affecting differential signal routing,
• the registering circuit is configured to output a fault signal when the voltage drop across the terminals of the at least one differentially operated coil exceeds a predefined threshold value, or
• the registering circuit has a low-pass filter configured to suppress alternating current (AC) signals.