Are there exceptions to adding h parameters in feedback problems of amplifiers?

In summary, in feedback problems of amplifiers, the use of H feedback in voltage controlled voltage sources is common. The benefit of this is that the sources are connected in series parallel form, making it easier to find the net h parameters. These are found by adding the h parameters of the amplifier alone to the h parameters of the feedback network alone. However, there may be exceptions to this rule if the individual parameters change due to loading or other factors. Proofs may be needed to determine if this is possible.
  • #1
dhruv.tara
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Homework Statement



In feedback problems of amplifiers we often use H feedback in the voltage controlled voltage sources... The good thing about that is that they are connected in series parallel form and they are then to find the net h parameters we simply add the h parameters of the amplifier (taken alone) to the h parameters of the feedback network (taken alone) respectively.

I was wondering if there are exceptions to this rule... I mean we connect the amplifier to the feedback network then isn't there a possibility that the individual parameters kind of change, maybe because of loading or something alike... Or is it impossible to happen. Can you give me some proofs?


Homework Equations





The Attempt at a Solution

 
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  • #2
someone reply please...
 

FAQ: Are there exceptions to adding h parameters in feedback problems of amplifiers?

1. What are two-port parameters?

Two-port parameters are a set of four complex numbers that describe the electrical behavior of a two-port network. They are used to analyze and design electronic circuits and systems.

2. What is the significance of two-port parameters?

Two-port parameters provide a simplified representation of a complex network, making it easier to analyze and design circuits and systems. They also allow for efficient analysis of interconnected networks.

3. What are the four types of two-port parameters?

The four types of two-port parameters are: S-parameters, Z-parameters, Y-parameters, and H-parameters. Each type is based on a different set of reference planes and can be used for different types of analysis.

4. How are two-port parameters measured or calculated?

Two-port parameters can be measured using specialized test equipment, such as a vector network analyzer. They can also be calculated using circuit analysis techniques, such as the use of Thevenin or Norton equivalent circuits.

5. What are some applications of two-port parameters?

Two-port parameters are commonly used in the design of amplifiers, filters, and other electronic circuits. They are also used in the analysis of transmission lines, antennas, and other communication systems.

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