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An analog voltage divider

  1. Jul 7, 2017 #1
    So I know a transistor is built to amplify or multiple an input signal using a base voltage. Are there such transistors that are analog? That is the output voltage is amplified depending on the base voltage? If so, is there analogously a transistor that divides instead of multiplies? That is where the base voltage is in the denominator and reduces the output voltage if the base voltage is increased? Basically I am looking for a transistor that can perform the analog computation analogy of mathematical division.
  2. jcsd
  3. Jul 7, 2017 #2
    Read this June 1958 Radio-Electronics article, "Mr. Math Analog Computer".
  4. Jul 7, 2017 #3


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    you also need to do some reading up on how a transistor actually works :smile:
    their neither amplify nor multiply and transistors are analog :wink:

    Very basically, their operation gives the "appearance" of amplification. That is the input current between the base and emitter (NPN Transistor) is not amplified, rather, it is used to control a larger current flow between the collector and emitter

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