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Electrical Engineering

Questions tagged [resonance]

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For questions about resonance, the phenomenon in which the amplitude of an electrical circuit's output increases when the frequency of its input is equal to or near the circuit's natural frequency. Consider also using the "frequency-response" tag.

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To ask the question clearly, I simulated the following as example frequency responses, where all four have the "same resonant frequency" and "same LC products". Top two circuits ...
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I am reading about the resonant peaks in the RLC circuits. Stumbled upon this link. Below is the frequency response of a series RLC circuit, voltage measured across the capacitor. I just want to ...
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I’m trying to clearly understand the difference between cut-off frequency and resonant frequency in the context of LC circuits. When I look up the formulas, both frequencies seem to use the same ...
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I am simulating a lossless LC tank driven by an AC source in LTSpice. The source frequency is the same as the tank's resonant frequency. I expect to see the inductor current and capacitor voltage grow ...
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I'm struggling to understand why, depending on the type of source (AC current or AC voltage), I can see peaks corresponding either to system resonance or antiresonance. I'm looking at the current ...
cover's user avatar
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I am working on a bandpass/lowpass filter for a synth I am building base around the LM13700. The goal of the filter is to be able to control the cutoff frequency with one potentiometer and control the ...
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I created a parallel LC tank circuit in LTspice. I want to use the input impedance of the node "A" in the diagram below. For this purpose, I drew the V(a)/I(R3) cross-section, and the ...
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I'm trying to detect a wire ( eventually that wire would be defining a perimeter boundary ) using ideas here: https://community.robotshop.com/blog/show/diy-perimeter-wire-generator-and-sensor In short:...
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So, there's this image (taken from here): So, as the capacitive reactance decreases with increase in frequency, at one point in frequency, the inductor (ESL) and the capacitor (C) form a tank circuit,...
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How can I verify the coil's resistance r = 10 Ω using an oscillogram from an LCR circuit with GBF (u(t) = U_max sin(2πN₀t)), capacitor C, coil (L = 0.2 H, r = 10 Ω), and resistor R = 40 Ω? The ...
to understand's user avatar
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I was performing some S11 measurement of an AC cable because I see some strange results when I connect it to a device. The cable length is 0.381m. The cable is sitting on a Reference ground plane, the ...
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I want to build a resonant circuit at 35 MHz with a Q factor as large as possible (ideally 100-1000). The main component is a capacitor made of 2 plates, located 500 microns apart and capacitance 0.1 ...
Silviu's user avatar
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I have a question concerning a RLC tank similar to the one below: Is there any way to analytically account for the influence of Cshunt, given that the Rs and Ls are the same? For simplicity only the ...
PhiPhox's user avatar
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I have a question concerning a RLC tank similar to the one below: Note: All Rs and Ls have the same values! In the upcoming simulations my output is at node vLoadRedQ. If I simulate the AC Magnitude &...
PhiPhox's user avatar
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I have a bit of a logical problem regarding how impedance matching a resonator works. I've built the following RLC-resonator with R=2Ohm, ...
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