Transmitting device for transmitting digital signals between galvanically isolated circuit parts, and field device having a transmitting device of this type

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United States of America Patent

PATENT NO 11552625
SERIAL NO

17415158

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Abstract

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Disclosed is a transmitting device comprising two galvanically isolated sub-circuits. The first sub-circuit comprises: a carrier signal source for outputting a carrier signal; a digital signal source for outputting binary signal levels; and a logic component for performing an AND operation on two input signals. The second sub-circuit comprises: a signal input; a signal output; and a first RC element, the signal input, the signal output and the RC element being connected in parallel to one another with respect to a second reference potential. A first isolating capacitor is connected between the first logic output and the signal input for galvanic isolation. A second isolating capacitor is connected between the first reference potential and the second reference potential for galvanic isolation.

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Patent Owner(s)

  • ENDRESS+HAUSER SE+CO.KG

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Daufeld, Ghislain Village Neuf, FR 6 7
Grozinger, Roland Neuenburg, DE 12 57
Kempa, Arnd Steinen, DE 4 0
Scherr, Stefan Kandern, DE 3 87

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