Questions tagged [gyrator]
For questions about gyrators: linear, two-port, non-reciprocal electrical network elements which couple the current on one port to the voltage on the other and vice versa. Consider using related tags as applicable (e.g. "operational-amplifier" for gyrator circuits built with op amps using feedback).
28 questions
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Recreating a transformer using gyrators
I have a transformer that I would like to recreate using gyrators. What I know about it:
two coils wrapped around the same core
the resistance and inductance of each coil
the coupling factor
the ...
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How does this EQ circuit work?
This is a "basic transformerless 5-band EQ using gyrators" schematic.
I think I understand the top part (pots remove the frequency from either input of the op-amp, either increasing or ...
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Circuit that makes capacitors behave like inductor and vice versa
They can be used in ICs. I vaguely remember reading about it few months ago, but I cannot remember its name right now. Can anyone help?
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Is the Gate-Controlled Diode an instance of a trancitor?
I'm not sure it entirely counts. It certainly isn't useful in the way that the current-controlled voltage source is useful as the original transcitor paper describes, but more importantly, I am unsure ...
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Preventing opamp from possible saturation maybe
I am trying to simulate a gyrator circuit for implementing capacitor as inductor in LTSpice. While simulation I am encountering the following problem :
It seems that top left opamp undergoes ...
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Inductor Based on capacitor and gyrator
I was trying to implement Inductor using capacitor in Lt spice. But the circuit waveform is not steady.
Also the impedance is not exactly proportional to frequency. please explain this deviation.
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Two port op amp gyrator circuit examples?
I can't seem to find any clear descriptions of how a two port gyrator circuit could be made from op amps. On Wikipedia, for example, it only gives this one port version describing an op amp based ...
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How to define the circuit that replaces the variable capacitor in its use with the TDA7000?
In the circuit below, there is a subcircuit that connects between C4, D1 and the VCC (5V), with Q1 and D2 as the central component, this circuit seems to me to be a Gyrator, I know that Gyrators are a ...
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Simulated inductor for guitar use
Edit: Sorry! Please bear with me, this is my first post! Well, it seems that placing a buffer before certain fuzzes can chance their sound. However, placing an inductor after the buffer cancels this ...
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Find admittance( G ) matrix of a resistive circuit
I am taking Signals And Systems class where I have to calculate the admittance parameter of a given circuit.
A given circuit for example:
This is tedious and calculating the parameters takes so long....
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Gyrator Derivation
I am trying to understand the input impedance calculation of this Gyrator circuit from Wikipedia.
The input impedance Zin is given as:
I am having trouble deriving this. My first reaction was to ...
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Equivalent Inductor Equation (Antoniou Gyrator Proof)
I've been working on a proof for University and I've been able to understand most of what I was asked, but I'm having trouble understanding why is it that the equivalent inductor in an Antoniou ...
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Gyrator in matlab
I am new to matlab , i am trying to simulate a simple circuit to check my calculation I have done on paper.
The circuit is the following, it has a gyrator and couple resistors.1 amp is flowing into ...
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Active inductor Circuit
I have created a series, shunt LC bandstop/notch filter.
https://github.com/promach/frequency_trap/tree/development
I am using gEDA with noqsi gnetlist backend and ngspice simulator
However, I ...
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Is it bad to leave a filter capacitor floating?
The circuit detail presented is a gyrator filter that is one of two that hang out in the feedback loop of an opamp, creating a "low" and "high" tone control for audio. (The "low" section is shown) I'd ...
user156429
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Antoniou gyrator with op-amps, simple explaination?
I need to demonstrate that this circuit behaves like a gyrator:
circuit
Now, I made this new version of the image:
edit
If I apply KVL to the blue surface I find out that the voltage on the top ...
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Finding the input impedance of this gyrator
I'm having a little trouble with this. I'm supposed to show that the input impedance of this gyrator is $$\frac{R^2}{Z}$$ but the math just isn't working out.
The gyrator consists of negative ...
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Finding Input Impedance of a Gyrator
I'm attempting to complete the question below.
What I understand so far: The circuit can be modeled with an 'equivalent inductor' and gain stage (not sure if this models the whole circuit or just one ...
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pros and cons of replacing a passive inductor by a gyrator
I am studying the construction of some touch sensors, and I need inductances of 10mH, I know I can easily do it, and also purchase them without much difficulty, however I know that it is possible to ...
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My Chua's Circuit is flatlining (i.e., malfunctioning)
I tried to build a Chua Circuit, but it doesn't appear to be working as expected.
The problem is that, while it's supposed to be an oscillatory circuit, I see no oscillations. Refering to the diagram ...
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Floating Inductor Simulation Using Only BJTs?
I know it is possible to replace large-ish floating inductors (~ 5mH) with
a gyrator, typically using two opamps:
What I've unsuccessfully tried to solve is : can we build something equivalent
to the ...
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Equivalent inductance of this gyrator
According to this link, the following schematic is equivalent to an inductance R1*R2*C placed between input and ground. Under which conditions is this true? As a guideline, we assume Vcc=9V. See this ...
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How do I determine the inductance of a circuit using Op-amps, Capacitors and Resistors?
I am trying to prove that the inductance of a given circuit (between the source A, and ground) (see image below) is equal to (R1*R2*R4*C)/R3.
Under the assumption that it is an ideal op-amp, I know ...
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Alternative to inductor on IC
I was running through the datasheet of CC2500 (Low-Cost Low-Power 2.4 GHz RF Transceiver) which has a dimension of ...
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What is a mutator?
I'm reading this paper by Chua on the memristor. He claims that
Using a mutator, a memristor with any prescribed phi-q curve ...
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Sourcing parts for Really, Really low frequency filters
I'm doing a project at work that has a couple of esoteric requirements, particularly for a 0.1 Hz (0.07 Hz really, due to part availability limitations) Highpass filter (in the data acquisition system)...
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Where's the energy in simulated caps/coils?
I understand that you can use a gyrator to simulate capacitors or inductors with (very) high values. A capacitor stores its energy in an electric field, an inductor in a magnetic field. Where is the (...
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Theory: With an AC circuit adding capacitors will cause the current trend towards leading
so if you add enough caps can you emulate what an inductor is doing, ie. Lead the current so far that it appears to be lagging?
I assume this doesn't work, why not?
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