Which components provide the regenerative feedback signal in the phase-shift oscillator?

Which components provide the regenerative feedback  signal in the phase-shift oscillator?
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1 Answer

Answer :

Resistor-capacitor networks.
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Related questions

The major function of transistor. Q2 is A) It provides voltage gain B) It provides the feedback signal C) It isolates the oscillator from loading effects D) It provides a phase shift.

Description : The major function of transistor. Q2 is A) It provides voltage gain B) It provides the feedback signal C) It isolates the oscillator from loading effects D) It provides a phase shift.

Last Answer : ) It provides a phase shift.

Why is a high-gain transistor used in the phase-shift oscillator?

Description : Why is a high-gain transistor used in the phase-shift oscillator?

Last Answer : Because of the losses encountered in the RC networks.

Which of the following is not true: A) An oscillator is a circuit that converts DC to AC B) An oscillator is an amplifier that supplies its own input signal C) All oscillators generate sine waves D) In phase feedback is called positive Feedback

Description : Which of the following is not true: A) An oscillator is a circuit that converts DC to AC B) An oscillator is an amplifier that supplies its own input signal C) All oscillators generate sine waves D) In phase feedback is called positive Feedback

Last Answer : C) All oscillators generate sine waves

What signal is used to synchronize the coherent oscillator to a fixed phase relationship with the transmitted pulse?

Description : What signal is used to synchronize the coherent oscillator to a fixed phase relationship with the transmitted pulse?

Last Answer : Coho lock pulse.

Which oscillator uses tapped capacitors for feedback?

Description : Which oscillator uses tapped capacitors for feedback?

Last Answer : Colpitts.

Which oscillator uses a tapped inductor for feedback?

Description : Which oscillator uses a tapped inductor for feedback?

Last Answer : Hartley.

Which oscillator uses a tickler coil for feedback?

Description : Which oscillator uses a tickler coil for feedback?

Last Answer : Armstrong.

What is phase-shift oscillator?

Description : What is phase-shift oscillator?

Last Answer : A phase-shift oscillator is a simple electronic oscillator. It contains an inverting amplifier, and a feedback filter which 'shifts' the phase of the amplifier output by 180 degrees at the oscillation ... 180° at high frequencies, so that the phase shift at the desired oscillation frequency is 180°.

Draw the labeled circuit of RC phase shift oscillator. State the formula for frequency of oscillator.

Description : Draw the labeled circuit of RC phase shift oscillator. State the formula for frequency of oscillator.

Last Answer : Frequency of oscillation is given by,

Compare between RC phase shift oscillator and crystal oscillator.

Description : Compare between RC phase shift oscillator and crystal oscillator.

Last Answer : RC phase shift oscillator Crystal oscillator This oscillator is used for low frequency range. Quartz crystal is mainly used in radio-frequency (RF) oscillators Used resistor and capacitor ... RC network is used as feedback network. Crystal is connected in feedback.

Draw and explain RC phase shift Oscillator.

Description : Draw and explain RC phase shift Oscillator.

Last Answer : Circuit diagram of RC phase shift oscillator: WORKING: * Circuit consists of a single stage amplifier in common emitter configuration & RC phase shifting network. * R1, R2, RE provides biasing & CE ... . * The phase shift around the loop is 3600 only at one precise frequency.  

In an R-C phase shift oscillator, the minimum no. of R-C networks to be connected in cascade will be -

Description : In an R-C phase shift oscillator, the minimum no. of R-C networks to be connected in cascade will be -

Last Answer : In an R-C phase shift oscillator, the minimum no. of R-C networks to be connected in cascade will be 3

Oscillator independent of phase shift is

Description : Oscillator independent of phase shift is  (1) Relaxation (2) Wein bridge (3) Clapp (4) All of these

Last Answer : Oscillator independent of phase shift is Relaxation 

Regenerative feedback implies feedback with?

Description : Regenerative feedback implies feedback with?

Last Answer : Regenerative feedback implies feedback with a positive sign.

What transmission method uses a stable cw reference oscillator, which is locked in phase with the transmitter frequency?

Description : What transmission method uses a stable cw reference oscillator, which is locked in phase with the transmitter frequency?

Last Answer : Pulse-Doppler.

Differentiate between positive and negative feedback on the basis of . (i) overall phase shift (ii) voltage gain (iii) stability (iv) applications

Description : Differentiate between positive and negative feedback on the basis of . (i) overall phase shift (ii) voltage gain (iii) stability (iv) applications 

Last Answer : Compare positive feedback and negative feedback on the basis of: (i) Gain (ii) Bandwidth (iii) Phase shift (iv) Stability

In the inverting configuration, the input signal is applied to the (a) (inverting, noninverting) input and the feedback signal is applied to the (b) (inverting, noninverting) input.

Description : In the inverting configuration, the input signal is applied to the (a) (inverting, noninverting) input and the feedback signal is applied to the (b) (inverting, noninverting) input.

Last Answer : a. Inverting. b. Inverting.

select the correct response from the choices given in the parentheses. Q-20. In a closed-loop configuration the output signal is determined by (the input signal, the feedback signal, both).

Description : select the correct response from the choices given in the parentheses. Q-20. In a closed-loop configuration the output signal is determined by (the input signal, the feedback signal, both).

Last Answer : Both the input signal and the feedback signal.

What type of feedback aids an input signal?

Description : What type of feedback aids an input signal?

Last Answer : Regenerative or positive

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Description : One of the FM signal generator control which varies the phase of the modulating voltage applied to the oscillator of the sweep generator A. Band control B. Phase control C. Marker amplitude control D. Sweep output control

Last Answer : B. Phase control

What three functions does the transistor in a regenerative detector serve?

Description : What three functions does the transistor in a regenerative detector serve?

Last Answer : Oscillator, mixer, and detector.

Which of the following best describes a dip-meter? A. An SWR meter B. A counter C. A variable LC oscillator with metered feedback current D. A field strength meter

Description : Which of the following best describes a dip-meter? A. An SWR meter B. A counter C. A variable LC oscillator with metered feedback current D. A field strength meter

Last Answer : C. A variable LC oscillator with metered feedback current

Best described a dip-meter. A. A variable LC oscillator with metered feedback current B. An SWR meter C. A counter D. A field strength meter

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Last Answer : A. A variable LC oscillator with metered feedback current

State type of feedback used for oscillator circuit. Explain Barkhausen criteria.

Description : State type of feedback used for oscillator circuit. Explain Barkhausen criteria.

Last Answer : Concept of feedback: Feedback is process to fed back part of output to the input. Feed back concept is introduced in amplifier to improve the parameters of amplifier like voltage gain, current gain ... signal  d) Voltage shunt: Output signal is voltage signal, feedback signal is current signal. 

An oscillator that uses a tapped coil to obtain the feedback is called:

Description : An oscillator that uses a tapped coil to obtain the feedback is called: a. A Hartley circuit b. A Pierce circuit c. A multivibrator d. A negative feedback circuit

Last Answer : An oscillator that uses a tapped coil to obtain the feedback is called: a. A Hartley circuit b. A Pierce circuit c. A multivibrator d. A negative feedback circuit 

Positive feedback is used in 1. Amplifier 2. Rectifier 3.Oscillator 4. Detector

Description : Positive feedback is used in 1. Amplifier 2. Rectifier 3.Oscillator 4. Detector 

Last Answer : Positive feedback is used in 1. Amplifier 2. Rectifier 3.Oscillator 4. Detector 

Feedback factor at the frequency of oscillation of a Wien bridge oscillator is:

Description : Feedback factor at the frequency of oscillation of a Wien bridge oscillator is:  (1) 3 (2) 1/3 (3) 1/29 (4) 3/29

Last Answer : Feedback factor at the frequency of oscillation of a Wien bridge oscillator is: 1/3.

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Description : Phase-shift keying is similar to what other two types of modulation?

Last Answer : Cw and frequency-shift keying.

What type of modulation depends on the carrier-wave phase shift?

Description : What type of modulation depends on the carrier-wave phase shift?

Last Answer : Phase.

The progressive operation of the contactors marked 'A' provide the winch shown in the illustration with __________. EL-0102 A. accumulation B. dynamic braking C. acceleration D. regenerative braking

Description : The progressive operation of the contactors marked 'A' provide the winch shown in the illustration with __________. EL-0102 A. accumulation B. dynamic braking C. acceleration D. regenerative braking

Last Answer : Answer: C

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What type of transmission is radiated from an aircraft’s radio altimeter antenna? A. An amplitude modulated continuous wave B. A pulse position modulated UHF signal C. A differential phase shift keyed UHF signal D. A frequency modulated continuous wave

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Last Answer : D. A frequency modulated continuous wave

What is the phase delay of an 800 Hz voice signal if the phase shift is 15 degrees? A. 1.25 µsec B. 52 µsec C. 83.33 µsec D. 26 µsec

Description : What is the phase delay of an 800 Hz voice signal if the phase shift is 15 degrees? A. 1.25 µsec B. 52 µsec C. 83.33 µsec D. 26 µsec

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The circuit which changes input signal at output with phase shift of 1800 is called (a) Amplifier (b) operational amplifier (c) switch (d) inverter

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Description : What components form the input-signal-developing impedance for the amplifier?

Last Answer : C2 and the secondary of T1.

What components may be used to build a basic phase modulator?

Description : What components may be used to build a basic phase modulator?

Last Answer : A phase-shift network such as a variable resistor and capacitor in series

What component in a blocking oscillator controls pulse width?

Description : What component in a blocking oscillator controls pulse width?

Last Answer : Transformer.

What is the primary advantage of power-amplifier transmitters over keyed-oscillator transmitters?

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Last Answer : Frequency stability.

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Description : Name a disadvantage of sine-wave oscillator synchronizers.

Last Answer : It requires additional shaping circuits.

What basic circuits meet the requirements of an externally synchronized master oscillator?

Description : What basic circuits meet the requirements of an externally synchronized master oscillator?

Last Answer : Sine-wave oscillator, single-swing blocking oscillator, and master trigger (astable) multivibrator.

What is the primary advantage of power-amplifier transmitters over keyed-oscillator transmitters?

Description : What is the primary advantage of power-amplifier transmitters over keyed-oscillator transmitters?

Last Answer : Frequency stability.

Name a disadvantage of sine-wave oscillator synchronizers.

Description : Name a disadvantage of sine-wave oscillator synchronizers.

Last Answer : . It requires additional shaping circuits.

What basic circuits meet the requirements of an externally synchronized master oscillator?

Description : What basic circuits meet the requirements of an externally synchronized master oscillator?

Last Answer : Sine-wave oscillator, single-swing blocking oscillator, and master trigger (astable) multivibrator.

What type of multivibrator can be used as a radar master oscillator?

Description : What type of multivibrator can be used as a radar master oscillator?

Last Answer : Free-running.

When a transmitter uses a high-power oscillator to produce the output pulse, what switches the oscillator on and off?

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Last Answer : High-voltage pulse from the modulator.

What is the polarity of the first alternation of the tank circuit in an emitter-loaded npn pulsed oscillator?

Description : What is the polarity of the first alternation of the tank circuit in an emitter-loaded npn pulsed oscillator?

Last Answer : Negative

What is the identifying feature of a Colpitts oscillator?

Description : What is the identifying feature of a Colpitts oscillator?

Last Answer : Split capacitors.

What is the difference between the series-fed and the shunt-fed Hartley oscillator?

Description : What is the difference between the series-fed and the shunt-fed Hartley oscillator?

Last Answer : In the series-fed Hartley oscillator, dc flows through the tank circuit.

What is the main difference between the Armstrong oscillator and the Hartley oscillator?

Description : What is the main difference between the Armstrong oscillator and the Hartley oscillator?

Last Answer : Feedback coil. Armstrong uses a separate coil. Hartley uses a tapped coil.

In a heterodyne-type frequency meter, what is the difference between the oscillator frequency and the unknown frequency?

Description : In a heterodyne-type frequency meter, what is the difference between the oscillator frequency and the unknown frequency?

Last Answer : Beat frequency.