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US 11,824,531 B2Granted
Switching device and system having the switching device for converting a differential input signal
AssigneeSew-Eurodrive GmbH & Co. KG
InventorsBenjamin Norenburg, Christian Senft, Sebastian Richter, Hans Jürgen Kollar, Marco Mader
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Abstract
In a switching device and a system for converting a differential input signal into a ground-referenced output signal using a control signal, error states are detected, and detected error states lead to the deactivation of the ground-referenced output signal and are indicated on the control signal in addition.
Claims24
A system, comprising:
- a switching device adapted to convert a differential input signal into a ground-referenced output signal using a control signal, the switching device adapted to detect error states, to, based on the detected error states, deactivate the ground-reference output signal, and to indicate the detected error states on the control signal;
- and
- a first differential stage, a second differential state, an output stage, an evaluation stage, and a bidirectional communications stage, the first differential stage adapted to generate a first ground-referenced signal as a function of a differential input signal, delayed by a first signal propagation time, the output stage adapted to generate the ground-referenced output signal as a function of the first ground-referenced signal and the control signal, the second differential stage adapted to generate a second ground-referenced signal as a function of the differential input signal, delayed by a second signal propagation time, the evaluation stage adapted to generate a third ground-referenced signal as a function of the first ground-referenced signal and the second ground-referenced signal while taking into account the first signal propagation time and the second signal propagation time, the bidirectional communications stage adapted to generate the control signal as a function of the third signal or as a function of the third signal and at least one opposite station, the output stage adapted to forward the first ground-referenced signal to the ground-referenced output signal additionally as a function of the third ground-referenced signal.
A system, comprising:
- a switching device adapted to convert a differential input signal into a ground-referenced output signal using a control signal, the switching device adapted to detect error states, to, based on the detected error states, deactivate the ground-reference output signal, and to indicate the detected error states on the control signal;
- wherein the switching device is adapted to detect error states that arise from errors on a further supply voltage;
- and
- wherein the switching device includes a supply-voltage protection stage adapted to generate a supply voltage as a function of a signal level of the further supply voltage, the switching device adapted to monitor a voltage level of the further supply voltage, and to forward, based on a voltage level being within a valid range, the further supply voltage to the supply voltage, and to separate, based on a voltage level outside the valid range, between the further supply voltage and the supply voltage.
1 more element
A system, comprising:
- a switching device adapted to convert a differential input signal into a ground-referenced output signal using a control signal, the switching device adapted to detect error states, to, based on the detected error states, deactivate the ground-reference output signal, and to indicate the detected error states on the control signal;
- a safety-directed switching device adapted to generate the differential input signal;
- and
- a frequency converter adapted to evaluate and actuate the control signal;
- wherein the ground-referenced output signal adapted to interrupt a rotating field generation of the frequency converter.
2 more elements
Dependencies are inferred from the claim text.