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Nonlinear Differential Equation

  1. Apr 16, 2007 #1
    Hi all,

    Can anyone please give me an example of a nonlinear differential equation used to model a certain type of circuit?

  2. jcsd
  3. Apr 16, 2007 #2
    Cuha's circuit is a pretty famous one:

    "[URL [Broken]
    Last edited by a moderator: May 2, 2017
  4. Apr 16, 2007 #3
    So in order for a circuit to be modeled by a nonlinear differential equation, the circuit must contain a nonlinear resistor?
  5. Apr 16, 2007 #4
    A circuit has to contain a non-linear element like a diode or transistor to behave non-linearly.

    A tunnel diode behaves as if it had negative resistance. As the voltage across the diode is increased, current decreases. That leads to cool modelings and applications such as oscillators.
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