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An amplifier can become and oscillator by adding positive feedback from the output back to the input. Positive feedback means that the phase of the signal fed back to the input is the same as the phase of the output signal. In the case of a high frequency oscillator, a tuned circuit (inductor and capacitor) or a quartz crystal in the input circuit will determine the frequency of oscillation.
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What is the definition of master oscillator?
An oscillator that establishes the carrier frequency of the output of an amplifier or transmitter.Source : Answers.com
Why ujt used as an oscillator?
why ujt used as amplifier
What the major components of a colpitts oscillator?
1.CE amplifier circuit 2.LC oscillator circuit
When amplifier become oscillators?
when the imput signal is so much that is oscillates the speaker, all an oscillator is defined as a device with A.C. feedback.
What are the component of transmitter?
Power supply, oscillator, modulator, and amplifier.
What is use of bipolar junction transistor?
amplifier, switch, oscillator, etc.
What is gunn amplifier?
Answers.com says it is a microwave amplifier in which a Gunn oscillator functions as a negative-resistance amplifier when placed across the terminals of a microwave source.
What is amplifier and oscillator?
amplifier is electronic circuit which is used to increase the amplitude of the input signal without affecting its frequency and phase.
Difference between oscillator and amplifier?
The amplifier projects the audio signal into something we can comprehend. The oscillator creates a fixed or variable pitch, which is fed to the amplifier. Amplifiers are circuits which transfer an input signal into an output signal. Oscillators are autonomous circuits powered by a constant energy source. They produce a steady state signal e.g. a sinusoidal signal or a chaotic signal.
What are the advantages of wien bridge oscillator?
RC phase shift oscillator is used to generate frequency in audio range and it is a fixed audio frequency oscillator where as wien bridge oscillator is a variable audio frequency oscillator for high frequency oscillations it is better to design wide band amplifier with LC network
What component of an AM transmitter generates the carrier frequency?
The classic AM transmitter layout is a master oscillator, followed by a "pen", or penultimate amplifier, followed by a PA or power amplifier. The master oscillator, which is probably crystal controlled, generates the carrier frequency.
How an amplifier can be converted to a oscillator?
By introducing positive feedback from output to input
