What is the purpose of an amplifier-coupling network?

What is the purpose of an amplifier-coupling network?
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1 Answer

Answer :

To transfer energy (a signal) from one stage to another.
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Related questions

What is the most common form of coupling for an rf amplifier?

Description : What is the most common form of coupling for an rf amplifier?

Last Answer : Transformer coupling.

If current gain is required from an rf amplifier, what type of component should be used as an output coupling element?

Description : If current gain is required from an rf amplifier, what type of component should be used as an output coupling element?

Last Answer : A step-down transformer.

What type coupling would be most useful for an audio amplifier between the first and second stages?

Description : What type coupling would be most useful for an audio amplifier between the first and second stages?

Last Answer : RC coupling.

What type coupling is usually used to couple the output from a power amplifier?

Description : What type coupling is usually used to couple the output from a power amplifier?

Last Answer : Transformer coupling.

What are four methods of coupling amplifier stages?

Description : What are four methods of coupling amplifier stages?

Last Answer : Direct, RC, impedance, and transformer coupling.

What is the purpose of a frequency-determining network in an rf amplifier?

Description : What is the purpose of a frequency-determining network in an rf amplifier?

Last Answer : To provide maximum impedance at the desired frequency.

The purpose of a coupling capacitor in an amplifier is to:

Description : The purpose of a coupling capacitor in an amplifier is to:  (1) Control the output (2) Provide impedance matching (3) Provide DC isolation between amplifier and load (4) W Increase the bandwidth

Last Answer : The purpose of a coupling capacitor in an amplifier is to: Provide DC isolation between amplifier and load.

What is the purpose of the rectifier in a magnetic amplifier?

Description : What is the purpose of the rectifier in a magnetic amplifier?

Last Answer : The rectifier eliminates hysteresis loss.

What is the purpose of the buffer amplifier?

Description : What is the purpose of the buffer amplifier?

Last Answer : Reduce interaction between oscillator and load.

What is the purpose of the pump in a parametric amplifier?

Description : What is the purpose of the pump in a parametric amplifier?

Last Answer : Supplies the electrical energy required to vary the capacitance.

What is the purpose of the circulator in a tunnel-diode amplifier?

Description : What is the purpose of the circulator in a tunnel-diode amplifier?

Last Answer : Prevent feedback to the tuned input circuit.

Can a parallel LC circuit be used as the frequency determining network for an rf amplifier?

Description : Can a parallel LC circuit be used as the frequency determining network for an rf amplifier?

Last Answer : Yes.

What is Amplifier Coupling ?

Description : What is Amplifier Coupling ?

Last Answer : Amplifier coupling is the process of connecting the output of one amplifier stage to the input of another amplifier stage to amplify the weak signal in phases. Couplings are used to gain more or less.

In the illustrated circuit, one advantage of the capacitor coupling over direct coupling is ____________. EL-0048 A. as the frequency decreased the capacitive reactance (Xc) increases B. the amplifier becomes more efficient at lower capacitance. C. the arrangement allows the coupling of the signal while it isolates the biasing of each stage. D. good frequency response.

Description : In the illustrated circuit, one advantage of the capacitor coupling over direct coupling is ____________. EL-0048 A. as the frequency decreased the capacitive reactance (Xc) increases B. the amplifier becomes ... of the signal while it isolates the biasing of each stage. D. good frequency response.

Last Answer : Answer: C

Which of the following methods cannot be used to increase the bandwidth for cascaded RF amplifier stages? A) Wave traps in each stage B) Stagger tuning C) A shunt damping resistor across each tuned circuit D) Doubled tuned transformers with tighter coupling

Description : Which of the following methods cannot be used to increase the bandwidth for cascaded RF amplifier stages? A) Wave traps in each stage B) Stagger tuning C) A shunt damping resistor across each tuned circuit D) Doubled tuned transformers with tighter coupling

Last Answer : A) Wave traps in each stage

In a resistance loaded, RC coupled amplifier the dc component is blocked by A) Load resistance RL B) Coupling capacitor, CC C) RB D) The transistor.

Description : In a resistance loaded, RC coupled amplifier the dc component is blocked by A) Load resistance RL B) Coupling capacitor, CC C) RB D) The transistor.

Last Answer : B) Coupling capacitor, CC

The Bandwidth of an RC-coupled amplifier is limited by: A) coupling capacitors at the low frequency end and bypass capacitors at the high frequency end B) coupling capacitors at the high frequency end and bypass capacitors at the low frequency end C) bypass and coupling capacitors at the low frequency end and shunt capacitors at the high frequency end and D) shunt capacitors at the low frequency end and bypass as well as coupling capacitors at the high frequency end.

Description : The Bandwidth of an RC-coupled amplifier is limited by: A) coupling capacitors at the low frequency end and bypass capacitors at the high frequency end B) coupling capacitors at the high frequency ... at the low frequency end and bypass as well as coupling capacitors at the high frequency end.

Last Answer : C) bypass and coupling capacitors at the low frequency end and shunt capacitors at the high frequency end and

Draw the multistage amplifier circuit diagram using RC coupling. State its advantages.

Description : Draw the multistage amplifier circuit diagram using RC coupling. State its advantages.

Last Answer : Advantages: 1. It has a wide frequency response. 2. For coupling the resistor and the capacitor are used and which are not expensive so the cost is low. 3. The circuit is very ... a wide frequency band. 5. It is high fidelity amplifier. 6. It provides less frequency distortion.

State the need and types of amplifier coupling.

Description : State the need and types of amplifier coupling. 

Last Answer : Need of amplifier coupling: 1.When ever large amplifier with very good impedance matching is required, a signal stage amplifier circuit will not able to amplify the signal to a large extent. 2 ... 2.Transformer coupled amplifier 3.Direct coupled amplifier 4. Inductance (LC) coupling

List the types of coupling used in BJT amplifier.

Description : List the types of coupling used in BJT amplifier. 

Last Answer : Types of coupling used in BJT amplifier: i. Resistance capacitance (RC)coupling ii. Impedance coupling iii. Transformer coupling iv. Direct coupling

Give the different types of amplifier coupling.

Description : Give the different types of amplifier coupling.

Last Answer : 1. Resistance – capacitance (RC) coupling.  2. Inductance (LC) coupling.  3. Transformer coupling (TC)  4. Direct coupling (D.C.)

Transformer coupling is used in class A amplifier to make it : -

Description : Transformer coupling is used in class A amplifier to make it : -  a) more efficient b) less bulky c) less costly d) distortion free

Last Answer : Transformer coupling is used in class A amplifier to make it : - more efficient

One advantage of transformer coupling in transistor amplifier is that:

Description : One advantage of transformer coupling in transistor amplifier is that:  (1) it provides excellent frequency response (2) It is simple and less expensive than others (3) Low power supply may be used (4) High efficiency and high power output is obtained.

Last Answer : One advantage of transformer coupling in transistor amplifier is that: High efficiency and high power output is obtained.

For an amplifier, the coupling method which gives the highest gain is

Last Answer : For an amplifier, the coupling method which gives the highest gain is Transformer coupling.

Loose or inefficient coupling of energy into or out of a waveguide can be accomplished by the use of what method?

Description : Loose or inefficient coupling of energy into or out of a waveguide can be accomplished by the use of what method?

Last Answer : Slots and apertures.

What are two advantages of this type of coupling?

Description : What are two advantages of this type of coupling?

Last Answer : It uses fewer components than capacitive coupling and can provide an increase in gain.

What effect does flux leakage in a transformer have on the coefficient of coupling (K) in the transformer?

Description : What effect does flux leakage in a transformer have on the coefficient of coupling (K) in the transformer?

Last Answer : it causes K to be less than unity (I).

What effect does flux leakage in a transformer have on the coefficient of coupling (K) in the transformer?

Description : What effect does flux leakage in a transformer have on the coefficient of coupling (K) in the transformer?

Last Answer : it causes K to be less than unity (I).

Is coupling loss from angular misalignment more critical in expanded beam or butt-jointed connectors?

Description : Is coupling loss from angular misalignment more critical in expanded beam or butt-jointed connectors?

Last Answer : Expanded beam connectors.

Is coupling loss from fiber separation and lateral misalignment more critical in expanded-beam or butt-jointed connectors?

Description : Is coupling loss from fiber separation and lateral misalignment more critical in expanded-beam or butt-jointed connectors?

Last Answer : Butt-jointed connectors.

What are the two methods used for feedback coupling?

Description : What are the two methods used for feedback coupling?

Last Answer : Inductive and capacitive.

Does coupling loss from refractive index profile difference result when the receiving fiber has a larger profile parameter

Description : Does coupling loss from refractive index profile difference result when the receiving fiber has a larger profile parameter

Last Answer : Fiber alignment.

What is the basic fiber cleaving technique for preparing optical fibers for coupling?

Description : What is the basic fiber cleaving technique for preparing optical fibers for coupling?

Last Answer : Score-and-break.

How does index matching gel affect the amount of coupling loss caused by (a) fiber separation, (b) lateral misalignment, and (c) angular misalignment?

Description : How does index matching gel affect the amount of coupling loss caused by (a) fiber separation, (b) lateral misalignment, and (c) angular misalignment?

Last Answer : (a) Reduces coupling loss, (b) does not change coupling loss, and (c) increases coupling loss

What connection properties result in fiber optic connector coupling loss?

Description : What connection properties result in fiber optic connector coupling loss?

Last Answer : Poor fiber alignment and end preparation, fiber mismatches, and Fresnel reflection.

In fiber-to-fiber connections, Fresnel reflection is one source of coupling losses. Light is reflected back into the source fiber and is lost. What causes Fresnel reflection?

Description : In fiber-to-fiber connections, Fresnel reflection is one source of coupling losses. Light is reflected back into the source fiber and is lost. What causes Fresnel reflection?

Last Answer : A step change in refractive index that occurs at fiber joints, caused by fiber separation.

Fiber-to-fiber coupling loss is affected by intrinsic and extrinsic coupling losses. Can intrinsic coupling losses be limited by limiting fiber mismatches?

Description : Fiber-to-fiber coupling loss is affected by intrinsic and extrinsic coupling losses. Can intrinsic coupling losses be limited by limiting fiber mismatches?

Last Answer : Yes.

What are the main causes of coupling loss?

Description : What are the main causes of coupling loss?

Last Answer : Poor fiber end preparation and poor fiber alignment.

How are source-to-fiber coupling and microbending and macrobending losses affected by changes in core diameter and D?

Description : How are source-to-fiber coupling and microbending and macrobending losses affected by changes in core diameter and D?

Last Answer : Coupling efficiency increases with both core diameter and D, while bending losses increase directly with core diameter and inversely with D.

In a circuit using grid-leak biasing, the coupling capacitor (Cc) chargcharge path?

Description : In a circuit using grid-leak biasing, the coupling capacitor (Cc) chargcharge path?

Last Answer : rkg, the cathode to grid resistance.

What is meant by the coefficient of coupling?

Description : What is meant by the coefficient of coupling?

Last Answer : The ratio of the fines of force produced by one coil to the lines of force that link another coil. It is never greater than one.

Will fiber coupling loss generally increase or decrease if the mode field diameter of a single mode fiber is decreased?

Description : Will fiber coupling loss generally increase or decrease if the mode field diameter of a single mode fiber is decreased?

Last Answer : Increase.

As the core and cladding modes travel along the fiber, mode coupling occurs. What is mode coupling?

Description : As the core and cladding modes travel along the fiber, mode coupling occurs. What is mode coupling?

Last Answer : Mode coupling is the exchange of power between two modes.

What type of coupling is most effective at high frequencies?

Description : What type of coupling is most effective at high frequencies?

Last Answer : Impedance coupling.

. What is the most common form of coupling?

Description : . What is the most common form of coupling?

Last Answer : RC coupling.

What is the purpose of a synchronizing network in a servo system?

Description : What is the purpose of a synchronizing network in a servo system?

Last Answer : To switch control of the amplifier between either the coarse signal and the fine error signal.

what is the purpose of the series-parallel network R 3, R 4, and R5?

Description : what is the purpose of the series-parallel network R 3, R 4, and R5?

Last Answer : The series-parallel network drops the remaining source voltage and is used to take the place of a single resistor (75 ohms) when the required ohmic value is not available in a single resistor.

If C4 were removed from the circuit, what would happen to the output of the amplifier?

Description : If C4 were removed from the circuit, what would happen to the output of the amplifier?

Last Answer : The output would decrease. (C4 decouples R2 preventing degenerative feedback from R2.)

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

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

Last Answer : C2 and the secondary of T1.

What two methods are used to compensate for the problems that cause low gain in an rf amplifier?

Description : What two methods are used to compensate for the problems that cause low gain in an rf amplifier?

Last Answer : . RF transformers are used and the transistor is neutralized.