Nice! If I remember correctly, you can generate a sine wave with a transistor, or a couple of them and resistors, with feedback loop, based on transistor phase shift principle.
I built something similar, but it used a resistor and capacitor. I used a CD40106 Schmitt-trigger Hex Inverter, and because of how the hysteresis works the RC allows you to control the square wave somewhat.
That's the same setup as you'd have with a 555 timer basically, just without the discharge pin hookup, because the 555 is essentially a schmitt trigger connected to a latch.
Question if you were to input the square wave coming from the 555 ic into a cd40106 Schmitt trigger hex inverter gate then into the cd4013 the output waveform would be almost a near perfect square wave?
Never had much luck with the CD4069 for ring oscillation. I was using the unbuffered one. But the CD40106 makes great unstable squares for me to feed into CD4094s!
Ring oscillators are used to test propagation delays in digital blocks of ICs, since it is quite easy and cheap to use several logic gates to build these test structures
I have a 3000w - 6000w peek generator that is produces a 240v modified sign. Is there a device that i can buy off of ebay / amazon that i can feed this source into that will output something close to a pure sign wave? Thanks
If you were *really* inclined to do so, you could use a CD4060 to divide the timer by whatever, and still keep chip count down. Just recently came across this chip, and it seems kinda fun :)
Sounds like the basis for a cheap hardware random number generator. Exaggerating the inconsistencies into useful values would probably mean a microcontroller, but it could be really small. Maybe ATTiny 4/5/9/10 sized. I'll have to think about this.
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Subbed for the hole in the headset, the posters and "Let's do something stupid!"
Stayed for the amazing clear explanations and interesting topics
You're a great teacher- looking forward to looking at more of your tutorials.
Nice! If I remember correctly, you can generate a sine wave with a transistor, or a couple of them and resistors, with feedback loop, based on transistor phase shift principle.
That sounds like a fun video to make.
I built something similar, but it used a resistor and capacitor. I used a CD40106 Schmitt-trigger Hex Inverter, and because of how the hysteresis works the RC allows you to control the square wave somewhat.
That's the same setup as you'd have with a 555 timer basically, just without the discharge pin hookup, because the 555 is essentially a schmitt trigger connected to a latch.
Question if you were to input the square wave coming from the 555 ic into a cd40106 Schmitt trigger hex inverter gate then into the cd4013 the output waveform would be almost a near perfect square wave?
Never had much luck with the CD4069 for ring oscillation. I was using the unbuffered one. But the CD40106 makes great unstable squares for me to feed into CD4094s!
Ring oscillators are used to test propagation delays in digital blocks of ICs, since it is quite easy and cheap to use several logic gates to build these test structures
I have a 3000w - 6000w peek generator that is produces a 240v modified sign. Is there a device that i can buy off of ebay / amazon that i can feed this source into that will output something close to a pure sign wave? Thanks
love your films, keep going
If you were *really* inclined to do so, you could use a CD4060 to divide the timer by whatever, and still keep chip count down.
Just recently came across this chip, and it seems kinda fun :)
Cool. So by frequency we can calculate real propagation delay?
Sounds like the basis for a cheap hardware random number generator. Exaggerating the inconsistencies into useful values would probably mean a microcontroller, but it could be really small. Maybe ATTiny 4/5/9/10 sized. I'll have to think about this.
"Bucket"
I really need to do something with my bucket-brigade-devices!
very interresting, i will try it . so simple!
great info, thank you
5:00 What kind of headphone is that, no Speaker?
Good video thanks
Where is the square wave?
its just like minecraft
these are interesting vids but the really short cuts are more distracting than helpful :/
Look human, I like you but almost everyone needs a constant frequency, so thanks but no thanks... but I'm sure I will like all the other video's.