A super explanation. Thank you very much.

I was taught in the old days that it was 66.7%. But hey... I was also taught that it was was a FULL WAVE bridge rectifer instead of a FULL BRIDGE. (Because with half a bridge you ain't going nowhere)😂. Thanks for your video though.

I love these videos. They are a master class in how to simply explain difficult concepts.

Great job, as usual, PKAE. May I ask what tools you used to create this video? Specifically, what tool created the 'slides,' and what tool recorded the animation, and how did you generate and capture the circular cursor?

Great video! This is a really great introduction to capacitors and I hope we get similar video for inductors! They're great for giving friends/family a peak into electrical engineering without frying their brains, haha! Two small comments regarding the formulas; 1) I would have appreciated a quick explanation on how the 63.2% relates to and can be used instead of the formula. (For those who see this and might wonder it's because when you plug in your time constant as your time into the V(t) = V_out(1-e^-(t/tau)) formula you end up with v_out(1-e^(-1)) = V_out(1-0.367...) = V_out(0.632) = 63.2% of V_out) 2) I personally like the formula myself, haha, it's really handy when plotting the charge/discharge graphs on a calculator as you only have to go back and change (t) for each of the 5 steps! :D But that's personal preference of course!

Very well explained. You said it, but skimped over it. You will never reach the input voltage on your capacitor.... it will always be charging or discharging with an ever de-/increasing amount. Continuing with your example after a lot of RC's the voltage will reach 4.999999999999 but never 5V exactly. But you did state state after 5RC we call it fully charged or discharged. Because it is close for normal cases. Again, thanks for the video!

Thank you very much !!!

This Only Fan's channel rules.

Thanks for another great video

Good show! 👍👍

Is the ESR of the capacitor normally considered negligible, thought it might be added to the resistor value. ESR is relatively small, usually tenths or hundredths of an ohm. I guess it would increase in significance if the resistor chosen was smaller?

great intro, thank you. i was always confused by the word "impedance" because it sounded similar to "resistance".

An exceptionally well presented video that is one of the best, if not the best, I have seen -- it is an excellent tutorial! Obviously a tremendous investment in time and effort was needed to produce it. My only comment (quite minor) involves the ≥ 6V sign used in the state change chart (11:39) for Comparator 2 -- it had been my understanding that equal input voltages for op amps would always produce a zero output voltage and that a voltage differential would be required to initiate a change. Either way, wonderful work.

0:38 I don't see any Diodes :'(

I've had a little book called 555 and it's applications for literally decades - never got around to reading it, now I am seriously going to read it - yours is probably one of the best, if not the best explanation of electronics I have ever encountered. SUBSCRIBED!

Brilliant explanation. Thank you!

Thank you, very vivid explanation! Love the bicycle pump and fly wheel analogies!

Great video, extremely well laid out. Thank you sir!

This is the clearest explanation of how the 555 timer works, that I’ve ever seen!

I flunked this test years back....but all i needed was this video....😮

What about just using the 555 in bi-stable mode?

Thanks a lot, very helpful and interesting video!

Ok, before that my favourite was schmitt trigger debounce method, now I have to try this. Thank you very much, Michael

Thanks!

i got the first explanation where you connect one LED to output and gnd, and the other LED reversed polorised to output and vcc. but i didnt understand the second diagram where both ends of LED sets are connected to both outputs

i didnt know you could do these kind of things with excel. you should also teach excel, man

Thanks to @bruceaitken1918 for spotting an error at 10:04. The t1 and t2 results should have both been 0.01525 not 0.0165 Seconds!

Confused - I'm making a spreadsheet so I can play with the circuit of 10:25 but my numbers don't match yours - I get t1 = t2 = 0.01525 seconds. Not a huge error, but I can't see how it happened. Clues?

Is their more math to the xc equation, I don't get 72 when I use it with those numbers.

Basically this configuration of the 555 is a Schmitt trigger inverter. If you only need one and need to save board space, this will do. Otherwise get a hex Schmitt trigger, more popular as an inverter. If you get the inverter but don't want an inverted output, you have 5 other inverters in the package

I apologize for the very basic question. I'm new to electronics and am trying to get a handle on the fundamentals. Could someone explain the role a capacitor plays in this context? I understand that it charges and then discharges when the switch is pressed, but I don’t quite understand why this is necessary

Title image said one's guys missing? I can't work out Watts missing?

Awesome!!! Great video from a great channel.

Great stuff

Another great video explained well thanks, Yesterday tried your police blue lights with grandson worked very well cheers working on sirens to add now

Nice

Of course if you just want a nice clean pulse with a minimum pulse length from a push button, you could use the 555 in it’s monostable configuration.

R is used in dc, impedance, capacitive and inductive reactance are used in ac circuits, impedance is natural in conductors, can't stop laws of physics

In the past there were other manufacturers of the NE555 other than TI. I suspect there all work the same though.

Great video

Oh my... I haven't heard talk like that in 6 or 7 years; not since I passed microelectronics. I'm surprised how much was still common knowledge to me.

I love the graphics

Excellent stuff. Let me see if I can put everything together when it comes to power factor. Big induction motors have massive X_l and very low R, which means they would have a very "steep" triangle. So they add a massive capacitor to compensate for it, subtracting away the X_c until the load is purely resistive as X_l and X_c cancel each other. That's when you have an optimal power factor of 100%. Am I correct?

Very cool circuit.

Wtf, where’s the explanation?

This video was mind blowing. Thanks!

Did this before and boy did I forget just about all of it.

My fave thing about impedance is how it allows us to look at the world and think about what a certain wave considers to be a solid wall. This video did not cover impedance matching (understandable, out of scope), which one must consider when connecting two regions of different impedance. How the impedance changes across the boundary controls how much of the wave is transmitted or reflected. Impedance is a feature of all waves, not just circuits however. Consider a trumpet, or any other brass instrument, why have they got that horn shape? The shape is a kind of impedance matching between the resonating cavity of the instrument and the open air. The horn shape helps match the impedance so that the maximum amount of power is transmitted from the cavity to the air!

I think that’s one of the best explanation I have ever seen. Fantastic video 👍🏻

cool!