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What is a tuned collector oscillator?
Tuned collector oscillation is a type of transistor LC oscillator where the tuned circuit (tank) consists of a transformer and a capacitor is connected in the collector circuit of the transistor. Tuned collector oscillator is of course the simplest and the basic type of LC oscillators.
How a tuned circuit does operate?
A tuned circuit is a very simple electronic circuit widely used in audio, radio and television equipment. Tuned circuits can store electrical energy oscillating at its resonant frequency. The capacitor stores energy in its electric field E and the inductor stores energy in its magnetic field B (green).
How does Hartley oscillator work?
The Hartley oscillator is distinguished by a tank circuit consisting of two series-connected coils (or, often, a tapped coil) in parallel with a capacitor, with an amplifier between the relatively high impedance across the entire LC tank and the relatively low voltage/high current point between the coils.
What are the examples of tuned frequency oscillator?
The oscillator is commonly tuned to a specific frequency by varying the reactant of the feedback path within the circuit. An example is the Colpitts oscillator.
What is called tuned circuit?
An LC circuit, also called a resonant circuit, tank circuit, or tuned circuit, is an electric circuit consisting of an inductor, represented by the letter L, and a capacitor, represented by the letter C, connected together.
Where are Hartley oscillators used?
It is used to produce a sinewave of desired frequency. Mostly used as a local oscillator in radio receivers. It is also used as R.F. Oscillator.
Which is the best description of a tuned collector oscillator?
Tuned collector oscillation is a type of transistor LC oscillator where the tuned circuit (tank) consists of a transformer and a capacitor is connected in the collector circuit of the transistor. Tuned collector oscillator is of course the simplest and the basic type of LC oscillators.
How are tuned base oscillators used in radio receivers?
Tuned collector oscillators are widely used as the local oscillator in radio receivers. Tuned base oscillators are called so, because the tuned circuit is placed in the base of the transistor amplifier. The combination of L and C form the tuned circuit or frequency determining circuit.
What kind of feedback does a Colpitts oscillator use?
Colpitts Oscillator − It uses capacitive feedback. Clapp Oscillator − It uses capacitive feedback. We shall now discuss all the above mentioned LC oscillators in detail. Tuned collector oscillators are called so, because the tuned circuit is placed in the collector of the transistor amplifier.
What is the phase shift of a tuned collector circuit?
As the CE configured transistor provides 180 o phase shift, another 180 o phase shift is provided by the transformer, which makes 360 o phase shift between the input and output voltages. The following circuit diagram shows the arrangement of a tuned collector circuit.