Electronics 101: Passive Filters
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- čas přidán 5. 09. 2024
- In today's Electronics 101, we explore the concept of passive RC filters.
Have a question you'd like answered, now you can email me directly at:
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Remember you can find the notes for this, and the other Electronics 101 videos at:
www.dropbox.co...
I like how you dont carry on to something else and get straight to the point i like watching your videos for refreshing on the terminology, but you also have taught me alot fo about details on certain things, keep up the good work
Nice explanations! A modest mathematics background is required. Maths apart, the concepts are very patiently explained even without fancy animations. Seems like a personal tutor guiding you.
Thanks for explaining the circuit from a Voltage Divider perspective ... thats what i always looked at it as ...
Just incredible BEAUTIFUL explanation, thanks!!
Super cool HHD. You link the components configuration to the math. I'm just a beginner and trying to piece it together. I got millions of questions most dumb so I'll spare you.
Why haven't I found this channel much earlier?? :P Good Job!
I am busy, but I took time to watch a little. Very good.
You are such a god for this
Good channel!!! Congratulations! We need a good closed caption because we have many friends from Brazil and other country in this channel. They like study Electronics, Electricity and English. Thank very much!!!
Very good instructional video. Keep 'em coming man.
Great summary of passive filters, thank you !
Yea, test the components of a circuit board using a multimeter, function generator, or oscilloscope. Identify the components expected results then test each one to find measured results for comparison. It's what I do every day in class.
Thank you, I was quite entertained ('oops, no not that', is a tried and true concept) and got some additional info that explains some basic electrical info that I had gotten very rusty on.
I’d love to see a video on the breakdown of how the passive filter in a pultec eqp1a works
I was just thinking, you could maybe expand on this a little further by telling people how to implement a pot that can be used to control the points of cutoff so that people have more control over the filter? This would be an insane amount of help for anyone that would want to incorporate their filter designs into say a mixing channel to essentially create band EQs.
Thanks :)
Thank you very much. These videos are really helpful.
Sounds like a good idea. Any suggestions of where to start?
I think really great video, I'm beginner with filter and it helped me a lot, thank you very much for this
And I'm very glad you did.
Just a clarification: Z = R + Xc. But to calculate Vout, you need the modulus of Z, so |Z| = sqrt(R² + Xc²).
I found this kind of confusing, so maybe adjust this? Besides that, great video ;)
Φ (phi) - is the phase angle in degrees or radians that the waveform has shifted either left or right from the reference point.
I'm thinking that a tweeter which has a capacitor prewired to it and rated at 120wrms by the manufacturer is actually intended for use in a speaker system that is also rated at 120wrms.. now!! that tweeter in question.. on its own without passive filtering probably only has a rating of only 10wrms but filtered its power handling increases.. ikd.. this is getting more confusing the more I think about it. if you understand what I'm talking about. I would love a video on the topic. thanks
great video... found this while looking for a video explaining why a 10 watt full range speaker can handle much more wattage when a capacitor is wired in series... for example, a large woofer can have a rating of 120 watts but a tweeter which is physically smaller also has a rating of 120 watts.. is this the actual power rating that the tweeter can handle or is this the manufacturer mearly stating overall system power???
So what happens when you have a signal with a mix of frequencies. Does the filter suppress certain frequencies but not others?
Hello. In order for a filter to become a second order, wouldn't be enough to add an extra capacitor to the filter's schematic? Why do you need two same R-C low pass filters, and not just have the initial RC filter with one extra capacitor in it? Unless, the second filter you've added can be reduced to a reactive component, such as the inductor
I have a question about the gain of high pass filter. why it is R/(R-Xc) instead of R/Z like what you did for low pass filter?
For capacitor your impedence z = R - jXc thts why
Why at High Pass filter the Vout formula is not calculated in the same maner as at the Low Pass Filter using the voltage divider
@humanHardDrive
You say at 26.55 (talking about the band pass filter) each filter is treated individually,it goes through the high pass filter then that signal goes through the low pass filter and that's what you get out...
This is what i don't understand,IF the signal 1st passes through the high pass filter THEN passes the signal on (IN SERIES) to the low pass filter then surely the filtered sound would NOT have any LOW frequency left to filter at the second stage because it would of been filtered down,as the high pass filter ONLY allows high frequencies through and cuts or attenuated the LOW ONES OUT.
I Cannot understand how the 2nd part of the filter can still work if it's already been diluted or filtered, how can it filter in the second part if the frequency has already been filtered away,surely there would be no signal left to work with in order for this 2nd part to work.
Can you please explain this part to me in basic terms,i cannot understand it
+SP330Y Well, it's simple actually. For example, say we want frequencies between 1kHz and 10kHz, just set the HIGH pass filter to allow all frequencies ABOVE 1kHz (cutting away anything lower than 1kHz) and then set the LOW pass filter to allow all frequencies BELOW 10kHz (cutting away anything higher than 10kHz). Still confused? Just ask!
Thank you so much! That's awesome :D
for high pass filter shouldn't the Vout = Vin * R/(R+Xc) ???
what is the difference if we use inductors...?
thank you a lot man
Great video! thanks a lot!! :)
What exactly is frequency gain? at 17:50
what happened to episode 6? why was it removed and what fundamental electrical concept am I now missing?
I think you got the first example too long for watching, but is a great tutorial. One recommendation, first show how the schematic looks like.
is the summation stuff at the beginning basically just like calculating a voltage divider based on impedance?
Exactly.
thanks great help
What would happen if you applied DC instead of AC?
can i replace the resistors with potentiometer?
@Takadanobaba nothing, there's no frequency or amplitude on DC
DC is thought of as an infinitely high frequency. Hence a low pass filter will allow DC through but a high pass filter will block it. And there most certainly is an amplitude on DC otherwise it would be 0.
Thank god ı found non-hindi accent video
good video! but you are confusing resistance with impedance, they are different attributes
butiful presentation about filter ,,its too good
It's a video that I need to remake.
Wish I new about this video sooner
Now to spend five minutes trying to understand it just to give up and spend the day watchig cat videos.
thx
Sir,it will be better if speak with subtitles.. delivered some word not understand..
No offense, I found Uncle Doug has a better explanation in his "Tone Stack" video series. Less math, more layman, as seen in practical terms.
This Chanel still active?
IMO. If your target audience is beginner, it is better to talk more about the behaviour of the RC circuit than throwing the equations out of nowhere.
Electronics = Math. Therefore, one cannot just show up here from "spark fun" or other such nonsensical "Hacker" sites and expect the coloring book of electronics. I would suggest that before attempting to learn electronics, have a decent Claculus 2 background. Now put your crayons away and stop bitching.
Math is the language of Electronics. It makes a whole lot of sense with Maths. I saw some other videos with no matgs and didn't feel like I understand the whole picture
If you is interested in electronics the greatest success that I have had was by following the Gregs Electro Blog (i found it on google) definately the best info that I've tried.
sorry i watched 3 times and couldn't understand a thing. probably cause I'm a beginner
+Albert Mora thanks a lot for pointing out this channel. Really great channel and i understand way much better