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- Relaxation_oscillator abstract "In electronics a relaxation oscillator is a nonlinear electronic oscillator circuit that produces a nonsinusoidal repetitive output signal, such as a triangle wave or square wave. The circuit consists of a feedback loop containing a switching device such as a transistor, comparator, relay, op amp, or a negative resistance device like a tunnel diode, that repetitively charges a capacitor or inductor through a resistance until it reaches a threshold level, then discharges it again. The period of the oscillator depends on the time constant of the capacitor or inductor circuit. The active device switches abruptly between charging and discharging modes, and thus produces a discontinuously changing repetitive waveform. This contrasts with the other type of electronic oscillator, the harmonic or linear oscillator, which uses an amplifier with feedback to excite resonant oscillations in a resonator, producing a sine wave. The difference between the two types is that in a linear oscillator the circuit operates close to linearity, while in a relaxation oscillator one of the components, the switching device, operates in an extremely nonlinear fashion, in a saturated condition, during most of the cycle.The term relaxation oscillator is also applied to dynamic systems in many diverse areas of science that produce nonlinear oscillations and can be analyzed using the same mathematical model as electronic relaxation oscillators. For example geothermal geysers, networks of firing nerve cells, thermostat controlled heating systems, coupled chemical reactions, the beating human heart, earthquakes, the squeaking of chalk on a blackboard, the cyclic populations of predator and prey animals, and gene activation systems have been modeled as relaxation oscillators. Relaxation oscillations are characterized by two alternating processes on different time scales: a long relaxation period during which the system approaches an equilibrium point, alternating with a short impulsive period in which the equilibrium point shifts. The period of a relaxation oscillator is mainly determined by the relaxation time constant. Relaxation oscillations are a type of limit cycle and are studied in nonlinear control theory.".
- Relaxation_oscillator thumbnail Turnsignals_On.jpg?width=300.
- Relaxation_oscillator wikiPageID "195967".
- Relaxation_oscillator wikiPageRevisionID "604484169".
- Relaxation_oscillator hasPhotoCollection Relaxation_oscillator.
- Relaxation_oscillator subject Category:Oscillators.
- Relaxation_oscillator type Artifact100021939.
- Relaxation_oscillator type Device103183080.
- Relaxation_oscillator type ElectronicDevice103277771.
- Relaxation_oscillator type Generator103434285.
- Relaxation_oscillator type Instrumentality103575240.
- Relaxation_oscillator type Object100002684.
- Relaxation_oscillator type Oscillator103857430.
- Relaxation_oscillator type Oscillators.
- Relaxation_oscillator type PhysicalEntity100001930.
- Relaxation_oscillator type Whole100003553.
- Relaxation_oscillator comment "In electronics a relaxation oscillator is a nonlinear electronic oscillator circuit that produces a nonsinusoidal repetitive output signal, such as a triangle wave or square wave. The circuit consists of a feedback loop containing a switching device such as a transistor, comparator, relay, op amp, or a negative resistance device like a tunnel diode, that repetitively charges a capacitor or inductor through a resistance until it reaches a threshold level, then discharges it again.".
- Relaxation_oscillator label "Kippschwinger".
- Relaxation_oscillator label "Oscillation de relaxation".
- Relaxation_oscillator label "Relaxation oscillator".
- Relaxation_oscillator sameAs Kippschwinger.
- Relaxation_oscillator sameAs Oscillation_de_relaxation.
- Relaxation_oscillator sameAs Osilator_relaksasi.
- Relaxation_oscillator sameAs m.01bvhr.
- Relaxation_oscillator sameAs Q1421688.
- Relaxation_oscillator sameAs Q1421688.
- Relaxation_oscillator sameAs Relaxation_oscillator.
- Relaxation_oscillator wasDerivedFrom Relaxation_oscillator?oldid=604484169.
- Relaxation_oscillator depiction Turnsignals_On.jpg.
- Relaxation_oscillator isPrimaryTopicOf Relaxation_oscillator.
