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Topic: Electronic oscillator


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  Crystal oscillator
Electronic oscillator circuits are typically associated with these piezoelectric devices that set up a basic oscillation, and the piezoelectric device is then used to predicably control the frequency at which the oscillator circuit will be resonant.
In a monolithic-type crystal oscillator, a receptacle is employed in which are formed as a monolithic unit: a crystal unit housing which houses the crystal unit, and an element housing which houses circuit elements in which components such as an oscillation circuit are formed.
Oscillator circuits are used with digital electronic circuits for a variety of uses including generation of a clock signal for synchronizing, pacing and coordinating the operations of the digital electronic circuit.
www.electronics-manufacturers.com /info/electronic-components/crystal-oscillator.html   (1592 words)

  
  Kids.Net.Au - Encyclopedia > Electronic oscillator
An electronic oscillator is an electronic circuit that produces a repetitive electronic signal, often a sine wave or a square wave.
The basic form of an harmonic oscillator is an electronic amplifier with the output attached to an electronic filter, and the output of the filter attached to the input of the amplifier.
Triangle-wave or sawtooth oscillators are used in the timebase circuits that generate the horizontal deflection signals for cathode ray tubes in analogue oscilloscopes and television sets.
www.kids.net.au /encyclopedia-wiki/el/Electronic_oscillator   (0 words)

  
  ipedia.com: Electronic oscillator Article   (Site not responding. Last check: )
An electronic oscillator is an electronic circuit that produces a repetitive electronic signal, often a sine wave or a square wave.
The basic form of an harmonic oscillator is an electronic amplifier with the output attached to a narrow-band electronic filter, and the output of the filter attached to the input of the amplifier.
Triangle-wave or sawtooth oscillators are used in the timebase circuits that generate the horizontal deflection signals for cathode ray tubes in analogue oscilloscopes and television sets.
www.ipedia.com /electronic_oscillator.html   (321 words)

  
 electronic oscillator – FREE electronic oscillator Information | Encyclopedia.com: Facts, Pictures, Information!
electronic oscillator, electronic circuit that produces an output signal of a specific frequency.
In some cases, a very stable mechanical oscillator, such as a specially prepared quartz crystal, may be coupled to an electronic oscillator to enhance its frequency stability.
In electronic oscillators, electrons oscillate with a constant...
www.encyclopedia.com /doc/1E1-oscillat.html   (760 words)

  
 Multiple oscillator electronic musical instrument having a reduced number of sub-oscillators and direct-read/write of ...
An electronic musical instrument according to the present invention has oscillators for generating a tone waveform; a modulator for modulating a musical tone; a modulation controller for determining a degree of modulation to be performed by the modulator; and a central control unit for controlling the oscillators, the modulator and the modulation controller.
In such an electronic musical instrument, musical tones that are produced by main oscillators are modulated by employing low-frequency musical tones that are produced by sub-oscillators to obtain a variety of sound effects, such as vibrato.
It is therefore a first object of the present invention to provide an electronic musical instrument that has a simplified circuit structure of a conventional tone generating section, and that requires a minimal number of sub-oscillators, regardless of the oscillator and the simultaneously produced timbre counts.
www.freepatentsonline.com /5414210.html   (5483 words)

  
 Search Results
An oscillator generally consists of an amplifier having part of its output returned to the input by means of a feedback loop; the necessary and sufficient condition for oscillation is that the...
A timekeeping device must contain or be connected to some apparatus that oscillates at a uniform rate to control the rate of movement of its hands or the rate of change of its digits.
A clock for all reasons, part 1: monolithic oscillator invigorates instrumentation applications; in addition to their common role as clock sources in digital systems, oscillators play an important role in instrumentation applications.
www.encyclopedia.com /SearchResults.aspx?Q=oscillator   (1153 words)

  
 Opto-electronic oscillator having a positive feedback with an open loop gain greater than one - Patent 5723856
The electro-optical oscillator of claim 3, further comprising a fiber stretcher coupled to the optical fiber, wherein the fiber stretcher includes an electrical input port and is operable to modify a length of the optical fiber in response to a signal applied to the electrical input port.
The electro-optical oscillator of claim 11, further comprising a fiber stretcher coupled to the optical fiber, wherein the fiber stretcher includes an electrical input port and is operable to modify a length of the optical fiber in response to a signal applied to the electrical input port.
The electro-optical oscillator of claim 20, wherein the electro-optical modulator further comprises an electrical bias port and the frequency at which the optical output signal oscillates is affected by a voltage applied to the bias port, and wherein the electrical bias port is the control port to which the combined electrical control signal is supplied.
www.patentmonkey.com /PM/patentid/5723856.aspx   (8577 words)

  
 National High Magnetic Field Laboratory - Oscillator Tutorial
An electronic oscillator is a circuit that produces a repetitive electronic signal, often a sine wave or a square wave.
Electrons (depicted as yellow particles) flow from the negative terminal of the battery to the capacitor (electrons flow opposite conventional current).
The path then reverses, as electrons are attracted from the newly charged negative plate of the capacitor to the positive plate, passing through the inductor on their way.
www.magnet.fsu.edu /education/tutorials/java/oscillator/index.html   (465 words)

  
 Spartanburg SC | GoUpstate.com | Spartanburg Herald-Journal   (Site not responding. Last check: )
A low-frequency oscillator (LFO) is an electronic oscillator that generates an AC waveform between 0.1 Hz and 10 Hz.
The basic form of a harmonic oscillator is an electronic amplifier with the output attached to a narrow-band electronic filter, and the output of the filter attached to the input of the amplifier.
A piezoelectric crystal (commonly quartz) may be coupled to the filter to stabilise the frequency of oscillation, resulting in a crystal oscillator.
www.goupstate.com /apps/pbcs.dll/section?category=NEWS&template=wiki&text=electronic_oscillator   (0 words)

  
 Electronic oscillator
An oscillator is a circuit that outputs a periodic signal.
Oscillators, clocks and timers are essential to the performance of most modem electronic devices.
A voltage controlled oscillator (VCO) is a circuit that generates an oscillating signal at a frequency proportional to an externally applied control voltage.
www.electronics-manufacturers.com /products/electrical-electronic-components/electronic-oscillator   (345 words)

  
 http://blogs.cjb.net/emily/   (Site not responding. Last check: )
The Clapp oscillator is one of several types of electronic oscillator constructed from a transistor (or vacuum tube) and a positive feedback network.
The Clapp oscillator is a Colpitts oscillator with an additional capacitor placed in series with the inductor.A clapp oscillator is in effect a series tuned version of the colpitts oscillator.
oscillators are oscillators where the primary frequency determining element is a quartz crystal.
blogs.cjb.net /winona/73701   (2105 words)

  
 Oscillators Tutorial & Circuits - Electronic Oscillator - General Theory - Hobby Projects
Oscillators are amplifiers with such a large amount of positive feedback that they produces an output signal with no signal applied to the input.
Square wave oscillators use resistors and capacitors to determine the frequency of oscillation.
Ideally the frequency of an oscillator should be stable, but due to temperature variations and mechanical vibration this may not be so.
www.hobbyprojects.com /general_theory/oscillators.html   (146 words)

  
 electromaniacs.com - How To
The basic form of an harmonic oscillator is an electronic amplifier with the output attached to a narrow-band electronic filter, and the output of the filter attached to the input of the amplifier.
Square-wave relaxation oscillators can be used to provide the clock signal for sequential logic circuits such as timers and counters, although crystal oscillators are often preferred for their greater stability.
Triangle-wave or sawtooth oscillators are used in the timebase circuits that generate the horizontal deflection signals for cathode ray tubes in analogue oscilloscopes and television sets.
electromaniacs.com /content/section/4/42   (325 words)

  
 Crystal Oscillator Reference
A crystal oscillator (sometimes abbreviated to XTAL on schematic diagrams) is an electronic circuit that uses the mechanical resonance of a physical crystal of piezoelectric material along with an amplifier and feedback to create an electrical signal with a very precise frequency.
The output frequency of a quartz oscillator is either the fundamental resonance or a multiple of the resonance, called an overtone frequency.
If this is not possible, the number of distinct crystal oscillators, PLLs, and their associated clock domains should be rigorously minimized, through techniques such as using a subdivision of an existing clock instead of a new crystal source.
www.doveonline.com /oscillator/more-on-crystal-oscillators.php   (1263 words)

  
 LC Oscillators
Oscillators, specifically electronic, are commonly found in everyday circuits, ranging from antique radios to TV transmitters.
This oscillator is very much like a RF amplifier, but a new coil, called the tickler coil, is connected between the plate and the B+, or high voltage supply.
The difference between the Armstrong oscillator and the Hartley oscillator is that the tickler coil is part of the LC circuit.
www.electronixandmore.com /articles/oscillators.html   (1219 words)

  
 Howstuffworks "How Oscillators Work"
For example, a quartz watch uses a quartz oscillator to keep track of what time it is. An AM radio transmitter uses an oscillator to create the carrier wave for the station, and an AM radio receiver uses a special form of oscillator called a resonator to tune in a station.
To understand how electronic oscillators work, it is helpful to look at examples from the physical world.
One of the most commonly used oscillators is the pendulum of a clock.
electronics.howstuffworks.com /oscillator.htm/printable   (737 words)

  
 Circuit Design-Chapter 7
As the oscillation becomes larger, the total loss introduce a limiting condition, and a steady-state oscillation is produced.
Simply put the condition for oscillation is that the total phase shift around the loop must be 360¢X at the frequency of oscillation and the magnitude of the open-loop gain must be unity at that frequency.
An oscillator circuit in which a balanced bridge is used as the feedback network is the Wien bridge oscillator as shown in Fig.
www.eie.polyu.edu.hk /~ensurya/lect_notes/commun_cir/Ch7/Chapter7.htm   (2282 words)

  
 www.oscillatorguide.com - RF Oscillator
The radio frequency oscillator is a separate assembly consisting of a l-mc oscillator, l-mc amplifiers, and regulated power supply.
The l-mc oscillator, power transformer, series-regulating transistor and one filter capacitor are mounted on the chassis of the unit.
The output of the 1-mc oscillator is applied to two separate amplifier stages A3Q3 and A3Q4.
www.oscillatorguide.com /rf-oscillator.html   (709 words)

  
 Tracking Advances In VCO Technology - Maxim/Dallas
The frequency of oscillation was established by the coil inductance and the circuit capacitance.
With a variable-frequency oscillator is was possible to tune the frequency translation circuit to a wide range of input RF signals and therefore enable multichannel communications, such as amplitude-modulated (AM) radio.
Such variable-frequency oscillators were an adaptation of the basic resonant-circuit oscillators, in which one of the resonant elements (an inductor or capacitor) would vary.
www.maxim-ic.com /appnotes.cfm/appnote_number/1768   (3023 words)

  
 Crystal Oscillator MMD Components
A crystal oscillator (sometimes abbreviated to XTAL on schematic diagrams) is an electronic circuit that uses the mechanical resonance of a physical crystal of piezoelectric material along with an amplifier and feedback to create an electrical signal with a very precise frequency.
A crystal oscillator is an especially accurate form of an electronic oscillator.
Crystal oscillators are a common source of time and frequency signals.
www.mmdcomp.com /oscillators-th.htm   (105 words)

  
 History of Organs and Organ Music
Electronic organs are instruments that use electronic circuits to produce signals that are amplified and sent to loudspeakers or headphones.
Oscillator organs are beset by some problems, such as the need for frequent tuning and the problem of keying the oscillators in such a way as to avoid sounds such as
All of these electronic instruments, regardless of the multitude of improvements made over the course of eighty years or so, are limited by the lack of ability to reproduce attack and release sounds and other nuances made by blown instruments such as the flute, trumpet, or organ pipe.
www.zianet.com /fpc/organmusichistory.htm   (2364 words)

  
 Oscillator types, Wien Bridge oscillators, Colpitts Oscillator, Hartley Oscillator, Blocking oscillator, RC Oscillator, ...
Clapp oscillator Clapp oscillator, The Clapp oscillator is one of several types of electronic oscillator constructed from a transistor (or vacuum tube) and a positive feedback network,...
Colpitts oscillators Colpitts oscillators are somewhat similar to the shunt fed Hartley circuit except the Colpitts oscillator, instead of having a tapped inductor, utilises two series capacitors in its LC circuit
Hartley oscillator The Hartley oscillator is an LC electronic oscillator that derives its feedback from a tapped coil in parallel with a capacitor (the tank circuit).
www.educypedia.be /electronics/analogosciltypes.htm   (537 words)

  
 The Theory of the Edgetone Oscillator   (Site not responding. Last check: )
With the assumption that the edgetone oscillator is a transit time feedback oscillator, analogous to electronic oscillators, explaining edgetones theoretically is reduced to two independent problems, predicting the fT product sequence, or values of k, as a function of stage number, and predicting the transit time T of a jet particle from aperture to edge.
In the klystron oscillator the electrons in interacting with the oscillating electric field either lose energy to the electric field, in which case oscillations continue, or gain energy from the field in which case oscillations die away.
To summarize, the phase velocity of the jet wave in the edgetone oscillator and in musical instruments such as the flute and organ flue pipe is not a small fraction of the jet particle velocity, as stated to be the fact in most texts and papers dealing with this oscillator and these musical instruments.
www.nmol.com /users/wblocker/edgeton.htm   (18205 words)

  
 oscillator - definition of oscillator from YourDictionary.com
Oscillators are useful in nontrending markets, in which prices move sideways.
Oscillators can signal that a trend is ending its run, even before that is evident in the price movement.
Oscillators are calculated by using momentum, which measures the rate of change in prices, instead of actual price levels.
www.yourdictionary.com /oscillator   (512 words)

  
 oscillatorguide.com - Oscillator
Oscillators are devices that are used to generate repetitive signals.
Oscillation is the periodic variation, typically in time, of some measure as seen, for example, in a swinging pendulum.
The basic job of an electronic oscillator is to generate an oscillating output.
www.oscillatorguide.com   (487 words)

  
 Buyer's Guide - Oscillators & Crystals
An electronic oscillator is an electronic circuit that produces a repetitive electronic signal, often a sine wave or a square wave.
A crystal oscillator is an electronic circuit that uses the mechanical resonance of a vibrating crystal of piezoelectric material to create an electrical signal with a very precise frequency.
In the case of a crystal oscillator, Y2 is a series resonant circuit with a parallel capacitor,...
www.electronicdesignnet.com /cms/component/option,com_ebg/Itemid,92/task,cat/eid,21318.16372   (1103 words)

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