Electronic oscillator | Wikipedia audio article
Channel: wikipedia tts
Date: 2019-01-13

This is an audio version of the Wikipedia Article:
https://en.wikipedia.org/wiki/Electronic_oscillator


00:01:49 1 Harmonic oscillator
00:02:07 1.1 Feedback oscillator
00:06:03 1.2 Negative-resistance oscillator
00:09:19 2 Relaxation oscillator
00:11:48 3 Voltage-controlled oscillator (VCO)
00:13:22 4 History
00:20:55 5 See also



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SUMMARY
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An electronic oscillator is an electronic circuit that produces a periodic, oscillating electronic signal, often a sine wave or a square wave.  Oscillators convert direct current (DC) from a power supply to an alternating current (AC) signal.  They are widely used in many electronic devices.  Common examples of signals generated by oscillators include signals broadcast by radio and television transmitters, clock signals that regulate computers and quartz clocks, and the sounds produced by electronic beepers and video games.Oscillators are often characterized by the frequency of their output signal:

A low-frequency oscillator (LFO) is an electronic oscillator that generates a frequency below approximately 20 Hz.  This term is typically used in the field of audio synthesizers, to distinguish it from an audio frequency oscillator.
An audio oscillator produces frequencies in the audio range, about 16 Hz to 20 kHz.
An RF oscillator produces signals in the radio frequency (RF) range of about 100 kHz to 100 GHz.Oscillators designed to produce a high-power AC output from a DC supply are usually called inverters.
There are two main types of electronic oscillator – the linear or harmonic oscillator and the nonlinear or relaxation oscillator.