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April 20, 2025, 06:33:48 AM

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Series LCR circuit

Started by saturated, March 07, 2025, 10:25:04 PM

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saturated

Seems like it's always darkest before the dawn  8| I'm so ready to be done with this book I literally have like 25 pages to go and still slugging it out  :grr

Anyhow the assignment was to put together the circuit
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Then calculate the resonant frequency and adjust signal frequency until the voltage across the resistor is maximized.

So I did everything
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and on the scope display the top is Vr and the bottom is Vin
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So I had calculated 50.33 khz and ended up with this
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So I really like how in this field the experiments closely match the calculations  <3)

So now I somewhat can start to comprehend how an old radio tuning capacitor can pull in a radio station but what bothers me is that is only one variable.  Or rather someone tuning in a station isn't adjusting a capacitor AND inductor.
Anyway don't want to open a can of worms  :loco
I ask stupid questions
and make stupid mistakes

criticism, critique, derision, flaming, verbal abuse welcome

Jazz P Bass

The radio tuning capacitor is the variable when it comes to 'selecting' a station frequency.
https://www.youtube.com/watch?v=5mE6v94zJ-A&t=1s


saturated

And ya knew it was coming  :loco

A parallel LCR circuit
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It really helps to actually do stuff.  I wasn't getting the results I needed so I had to try and fix it.  Turned out I was using the 1k resistor that was called for previously when I fact a 100k resistor was needed.

 xP
I ask stupid questions
and make stupid mistakes

criticism, critique, derision, flaming, verbal abuse welcome