Equivalent noise resistance

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Equivalent noise resistance , engl. ENR, equivalent noise resistance , is an imaginary resistance at the input of an electronic circuit in which the noise sources of the circuit are computationally summarized.

In a real electronic circuit, e.g. B. an amplifier , there are always sources of noise. This is mostly due to resistance noise. All these sources are combined in a resistor, which at room temperature of T 0 = 290 Kelvin generates just enough noise that the same, idealized (noise-free) circuit with this resistor at the input delivers just as much noise voltage at the output as the real one.

literature

  • Helmut Röder, Heinz Ruckriegel, Heinz Häberle: Communication electronics . Radio and television electronics (= electronics. Vol. 3). 5th edition. Verlag Europa-Lehrmittel, Wuppertal 1980, ISBN 3-8085-3225-4 .
  • Hans Fricke, Paul Vaske: Basics of the electrical communication transmission BG Teubner Verlag, Wiesbaden 1979, ISBN 978-3-322-94046-9 .
  • Fritz Schröter, N. von Korshenewsky, WT Runge (Hrsg.): Textbook of wireless communications technology. Television technology part two, Springer Verlag, Berlin 1963.
  • Leonhard Stiny: Passive electronic components. Structure - function - properties - dimension and application, 2nd edition, Springer Fachmedien, Wiesbaden 2015, ISBN 978-3-658-08651-0 .

See also

Individual evidence

  1. ↑ Electronics: A Tool for Natural Scientists - Google Books . books.google.de. Retrieved October 12, 2009.