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  2. Barkhausen stability criterion - Wikipedia

    en.wikipedia.org/wiki/Barkhausen_stability_criterion

    It cannot be applied directly to active elements with negative resistance like tunnel diode oscillators. The kernel of the criterion is that a complex pole pair must be placed on the imaginary axis of the complex frequency plane if steady state oscillations should take place. In the real world, it is impossible to balance on the imaginary axis ...

  3. Oscillator (cellular automaton) - Wikipedia

    en.wikipedia.org/wiki/Oscillator_(cellular...

    In Conway's Game of Life, oscillators had been identified and named as early as 1971. [1] Since then it has been shown that finite oscillators exist for all periods. [2] [3] [4] Additionally, until July 2022, the only known examples for period 34 were considered trivial because they consisted of essentially separate components that oscillate at smaller periods.

  4. Electronic oscillator - Wikipedia

    en.wikipedia.org/wiki/Electronic_oscillator

    Simple relaxation oscillator made by feeding back an inverting Schmitt trigger's output voltage through a RC network to its input.. An electronic oscillator is an electronic circuit that produces a periodic, oscillating or alternating current (AC) signal, usually a sine wave, square wave or a triangle wave, [1] [2] [3] powered by a direct current (DC) source.

  5. Optical parametric oscillator - Wikipedia

    en.wikipedia.org/wiki/Optical_parametric_oscillator

    Infrared optical parametric oscillator. An optical parametric oscillator (OPO) is a parametric oscillator that oscillates at optical frequencies. It converts an input laser wave (called "pump") with frequency into two output waves of lower frequency (,) by means of second-order nonlinear optical interaction.

  6. Klystron - Wikipedia

    en.wikipedia.org/wiki/Klystron

    Low-power klystrons are used as oscillators in terrestrial microwave relay communications links, while high-power klystrons are used as output tubes in UHF television transmitters, satellite communication, radar transmitters, and to generate the drive power for modern particle accelerators.

  7. Ring oscillator - Wikipedia

    en.wikipedia.org/wiki/Ring_oscillator

    The ring oscillator is a member of the class of time-delay oscillators. A time-delay oscillator consists of an inverting amplifier with a delay element between the amplifier output and its input. The amplifier must have a gain greater than 1 at the intended oscillation frequency.

  8. Oscillation - Wikipedia

    en.wikipedia.org/wiki/Oscillation

    Coupled oscillators are a common description of two related, but different phenomena. One case is where both oscillations affect each other mutually, which usually leads to the occurrence of a single, entrained oscillation state, where both oscillate with a compromise frequency. Another case is where one external oscillation affects an internal ...

  9. Category:Oscillators - Wikipedia

    en.wikipedia.org/wiki/Category:Oscillators

    Electronic oscillators (64 P) M. Mechanical vibrations (5 C, 50 P) P. Pendulums (1 C, 39 P) R. Resonators (11 P) Pages in category "Oscillators"