Capacitively coupled RLC circuits

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Homework Help Overview

The discussion revolves around capacitively coupled RLC circuits, specifically focusing on the characteristics and behavior of such circuits when coupled through a capacitor. Participants are interested in understanding various coefficients and concepts like quality factor (QF) and bandwidth, as well as the relationship between maximal voltage and frequency in this context.

Discussion Character

  • Exploratory, Conceptual clarification, Problem interpretation

Approaches and Questions Raised

  • Participants express a desire for organized material that explains relevant concepts related to the coupling of RLC circuits. There are attempts to clarify how the circuit is driven and whether it resembles known configurations of coupled RLC circuits. Questions about the measurement of voltage across components at different frequencies and the role of the coupling capacitor are also raised.

Discussion Status

The discussion is ongoing, with participants sharing their attempts to find resources and clarify their understanding of the circuit's behavior. Some have provided images related to their measurements, indicating a practical exploration of the topic. However, there is no explicit consensus on the best approach or understanding of the concepts involved.

Contextual Notes

Participants mention challenges in finding comprehensive sources that cover the aspects of coupling two circuits using capacitors. There is also an indication of a need for clarification on the driving mechanism of the combination circuit.

SadStudent
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Homework Statement


Given a set of two capacitively coupled RLC circuits where each has a capacitor C and they share a coupling capacitor C^{'}.
I'm trying to find nice organized material that will explain the various relevant
coefficients\concepts like QF, bandwidth etc. in relation to the above mentioned setup.
Or how to find the function of the maximal voltage as the function of frequency given a certain setup.

Homework Equations


The Attempt at a Solution



I do know how to solve the differential equations involved and get the voltage and current as the function of time but I can't find good sources that could explain all the aspects of coupling two circuits using a capacitor.
 
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SadStudent said:

Homework Statement


Given a set of two capacitively coupled RLC circuits where each has a capacitor C and they share a coupling capacitor C^{'}.
I'm trying to find nice organized material that will explain the various relevant
coefficients\concepts like QF, bandwidth etc. in relation to the above mentioned setup.
Or how to find the function of the maximal voltage as the function of frequency given a certain setup.

Homework Equations





The Attempt at a Solution



I do know how to solve the differential equations involved and get the voltage and current as the function of time but I can't find good sources that could explain all the aspects of coupling two circuits using a capacitor.

How is the combination circuit driven?

Does the circuit look like any of these coupled RLC circuits? https://www.google.com/search?hl=en...urce=og&sa=N&tab=wi&ei=pnUGU-q6Ec_poATJqYHgAQ

.
 
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It looks like this:

schem.jpg


And the we've measured the voltage on the R_{1} for various frequencies and C^{'} coupling capacitors.
 
SadStudent said:
It looks like this:

schem.jpg


And the we've measured the voltage on the R_{1} for various frequencies and C^{'} coupling capacitors.

I couldn't see that image.

Use the "Manage Attachments" feature of PF .

Here is the image below.

attachment.php?attachmentid=66844&stc=1&d=1392947083.jpg
 

Attachments

  • schem.jpg
    schem.jpg
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