Frequency Multiplication with Tank Circuits - Short Circuits 2

[kibble9]

Does the falling edge of the pulse influence the tank circuit? I.E: if the pulses formed a square wave, would the resonance be inhibited?

[thewii552]

I tried this, and it was being stupid-for some reason, nothing happened. ah well.

[yeoldeengineer]

It is, indeed, a periodically "pumped" LC oscillator. Old trick for obtaining single harmonics.

A processor would have an on-chip PLL, of course. A look at one of them little MP3 player SoCs (AS3525 or somesuch) shows what's doable these days.

[heroineworshipper]

But does our 3.6Ghz computer use an inductor to multiply its oscillator?

[mgregggphone]

I really like you showing the oscilloscope output. It really helps to see what is going on.

[fluxoff]

Very neat. Is there a video where you explain your studio video mixing/FX setup?

[jeriellsworth]

@fluxoff I don't. My setup is a Tricaster by Newtek. I worked for them for a while and put a system together out of scraps.

[CodeJeffo]

hmm, where can I find girl like this one? Amazing, wish you all the best :)

[CampKohler]

Next you need a knob that turns an interrupter wheel that can be "seen" by optocouplers to approximate a real knob. (Buttons = phooie!)

[nfri]

this frequency multiplication effect can also be viewed in the more conservative way: such as that the input square wave has harmonics. these harmonics are multiples of the base frequency of the square wave, and the LC tank essentially acts as a filter that passes whatever harmonic comes close to its resonant frequency,.. thanks for the great insight Jeri, now I know I wouldn't always need a PLL for this

[thewii552]

could the oscillator be done with a 74HC04?

[shodanxx]

hmm it's not a flywheel effect (smoothing out pulses of power) but a spring effect, just oscillating away without a damper

though, I could be wrong

[Albinorama]

please keep doing this series!.

Thanks.

[amgando]

sublime explanations. please, keep going.

[jimbo]

Thanks! Most cool video

[Chick6517]

i have to say i have been amazed ones again the video was great great i really liked it i have to show it to some of my friends later.

[Tolaemon]

Very usefull and instructive! Thanks