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A: actually any active components will oscillate with positive feedback
A transistor can be used as an amplifier along with an LC tank circuit to form an oscillator; it is an active device (as LIBURNO states) which will amplify the feedback signal coming out of the LC tank circuit. The tank circuit has a natural resonant frequency, meaning the L and C together will try to generate a specific frequency; this is then fed back into the input of the transistor amplifier, and the output is fed to the LC tank circuit exacerbating this oscillation until it reaches its' maximum level.
An inverting amplifier can be used similarly; the output is fed to the input; this will cause the output to change as fast as the amplifier can. The frequency of this design is much harder to control, but potentially higher. Also, without the LC tank, the output voltage will remain lower.
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What is blocking oscillator?
The oscillator which is blocked by using transformer is called a blocking oscillator. Generally, the primary is given to the base and secondary is given to the collector of the transistor used in the oscillator circuit.
How do you design hartley oscillator using transistor?
i will put tank ckt and give it to transistor via positive feedback
What type of transistor used in colpitts oscillator?
whatever works at the desired operating frequency
Why rf choke is used in collpitts oscillator?
To isolate the bias circuitry of the transistor from the feedback network with RF currents.
Can you do amplification without transistor and is it possible to design oscillator using diode?
Magnetic amplifiers and vacuum tubes don't need transistors to amplificate electricity current. You can get a transistor by two oppositely connected diodes.
Working of transistor as an oscillator?
A transistor is often referred to as an oscillator because of its ability to transfer resistance. it can also switch off and on repeatedly, mimicking an oscillator.
What is blocking oscillator?
The oscillator which is blocked by using transformer is called a blocking oscillator. Generally, the primary is given to the base and secondary is given to the collector of the transistor used in the oscillator circuit.
How do you design hartley oscillator using transistor?
i will put tank ckt and give it to transistor via positive feedback
What is use of bipolar junction transistor?
amplifier, switch, oscillator, etc.
Why transistor is used?
for high frequency applications(RF oscillator) we use BF 194
What type of transistor used in colpitts oscillator?
whatever works at the desired operating frequency
Why rf choke is used in collpitts oscillator?
To isolate the bias circuitry of the transistor from the feedback network with RF currents.
Where is the transistor BF194 used?
for high frequency applications(RF oscillator) we use BF 194
Can you do amplification without transistor and is it possible to design oscillator using diode?
Magnetic amplifiers and vacuum tubes don't need transistors to amplificate electricity current. You can get a transistor by two oppositely connected diodes.
What has the author Athanasios D Marousis written?
Athanasios D. Marousis has written: 'Design of a transistor dielectric resonator oscillator at 4.7GHz'
How transistor acts as a amplifier?
A transistor does not act as an amplifier. It is used as a component in an amplifier circuit.
Phase-shift oscillator using pnp transistor?
A phase-shift oscillator using a PNP transistor consists of an RC network in the feedback path, a PNP transistor biased to operate in the active region, and a network of resistors and capacitors that provide the required phase shift for oscillation. The RC network introduces a 180-degree phase shift at the desired frequency, and the transistor provides the additional 180-degree phase shift needed for sustained oscillation. By properly selecting the values of resistors and capacitors, along with biasing the transistor correctly, a stable sinusoidal oscillation can be achieved.
