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Great video! masterfully crafted

this was so helpful for understanding noise filtering. Seeing it on the oscilloscope makes it much more intuitive! Time to add some capacitors to my projects. Thank you for making this!

how to add decoupling cap for any exist power source or module?

04:45 you should have mentioned you removed the decoupling capacitor at the input of the regulator and the bypass capacitors at the input of the 555 timer...

great videos and explanation.. only the music is extremly disturbing...

No wonder why we have hiz on our hindered dollar speakers and amplifiers, they cheap out to add a couple of capacitors that would cost them $0.99

1:32 + 6:35 my thoughts on this video

Thanks for this video! You just explain it all very clearly and get straight to the point without wasting my time.

You forget to add the output cap of the regulator or did I miss something?

i like the videos and explanations, but that white baseboard where the components are placed is making it very hard for me to understand the wiring....

Very good, this was a good and simple explanation on this topic.

Very nice sir

good clip

Chinglish.

This is so cool...the video is very well explained....it isn't even taught in university so well ... please continue to make more videos like these...thanks

I use them a couple at a time.

It's a Flux-Compensator, not a Flux-Capacitor 😂

Great video, clear and to the point. 👍👏👏

Why doesn’t the manufacturer include the decoupling caps in the ICs directly? Is this for cost-savings or user configurability?

Nusret 😂 🇹🇷

Add a ferrite bead or small inductor on the voltage input to the LDO. Add a source termination resistor at the 555 output, say 400ohm. 👍

very good 👌

I don't like the "standard" circuit of the NE555 given in the datasheet for several reasons. And I also preferrably use the TLC555, because it has shoot-through protection and a symmetric rail-to-rail output. So I can control charging and discharging of the capacitor directly over a resistor from the output pin, which gives a good 50% duty cycle. The "standard" circuit wastes a lot of current if you use low values of R1, like 220 Ohm. At 5 V operating voltage the circuit consumes 23 mA or 135 mW unnecessarily. This is quite a lot. The NE555 consumes also 3 mA at 5 V and every swithing event at the output can lead to shoot-through current of 200 to 300 mA. The TLC555 only consumes 0.5 mA. The discharge pin can be used as an open collector output to draw multiple device to the same output line. So I don't like to use it just for the discharge of a capacitor. So I have my very own philosophy to use 555 timers in circuits and most of my circuit designs differ a lot from the standard.

Very nice class! This is way better than the classes I used to have back in the day. Got a new sub! Cheers!

More videos pls

Very informative thanks, especially showing the effects of the capacitors on the scope 👍

This was a VERY clear and concise demonstration of why digital circuits absolutely need these caps.

I've started making my own breadboard adapter PCB for SMD modules and MCU ICs when not available commercially. Now I think I will include coupling capacitors on the adapters. I know that dev boards are available, but I like to recreate the functionality as part of my own designs, and i need to test it, which is why i use adapters.

Thank you

Very good video and demo

Having 3.840 Subscribers with only 3 videos is quite an achievement! But it shows the quality of your videos. If it could be scaled up, you will have almost 40.000 subscribers with 30 videos ;-) Please make more videos!

Thank you for this video!

This was a very good explanation. Thank you!

Can I use this to generate 1 Hz pulse? I'll set RA to 680 ohm, RB to 6.8 Kohm and C to 100 uf, Vcc is 5V. Everything else will be like the video setup. I need this pulse to be fed into a 7474 as a clock later on.

Love the component labels and clean breadboard layout! You should make some more videos, they're so good

Fantastic video, subscribed! That's a great way to show the effects in practice on a common circuit that we can all replicate ourselves

I've tried to tell people building single board computers this until I was blue in the face and everything I said fell on deaf ears. .Sometimes it's best to let someone build a piece of crap. I'm all for someone showing me a better way if there is one, but some TH-camrs get their panties in a knot when you suggest a modification to their design. Most viewers believe everything a presenter says as if it's been carved into stone. They don't know any better. Good presentation. Seeing is believing. Have a great night.

Excellent, very informative session ,Keep it up and all the best...

Great video. Please make some more

Very good video

excellent video! Thank you for the demo and showing us the capa effects in live

Nice tutorial, thanks for posting. What oscilloscope are you using?

Now it can be clearer than that. Even the plant standing on the shelf behind me got it. Well done.

Always wondered why they dont include these inside the component itself.

well, you should not measure ripple and noise like that. use a short path ground instead of that clip will get you a different result.

You can get just under 1V when shining an led torch at a 5mm green LED.

Yes, good job. Thanks.😀

wow, great didactics!

Mechanical engineer here trying to figure stuff out, thanks for the details.

These capacitors are not decoupling capacitors. Decoupling capacitors eliminate dc voltages from previous or following stage of circuit modules. Your capacitors do the opposite thing. They form high pass filters grounding high frequency noise from power supply lines, inputs or outputs of circuit modules. Capacitors from power supply lines to ground furthermore form charge buffers, which suppress voltage break downs due to short time higher current requirements of circuit modules. These buffer capacitors are especially needed in the case of the NE555 timer application because it has no means to suppress shot througs in its output stage. So it uses 200 up to 500 mA for 40 to 100 ns which cannot propagate along the power supply lines to the device because of its inductance. So a voltage regulator cannot react on them. So it only can be covered by the charge of a capacitor immediately located at the power pins of the timer IC.to keep the inductance of the current path low (in the nH range).