Filter Approximations: Overview of Butterworth, Chebyshev, Elliptic and Bessel Filter Approximation

[@shreyagokhale7005]

This video saved me in LIC viva, thanks a ton🥺🥺🥺🥺

[@2307anand]

thank you so much..profs in iits should see this..this is how one should teach!

[@vikki_music7]

Dude really? wtf!!!!!!!!!!!!!!!!!!!!!!!!!

[@akhil6095]

The best video on filters..... Thank you sir!

[@Monotic-j1i]

Aap ki her video to the point hoti hai thanks....

[@mayurshah9131]

Excellent, as usual, keep it up

[@PraneshPyaraShrestha]

phenomenal explanation !

[@MsSujoy]

Excellent.. And vocabulary used for explanation is very impressive... 💗💙💖💚💝💜💟

[@usersn300]

Thank you! Please make videos on Digital filters also.

[@bdadavies111]

Hi, great video, thanks so much. Do you have any idea which filter approximation would be best suited for an audio filter? Im trying to design my own bass filter for a sub woofer so planning on making both a low pass and high pass filter in parallel such that one outputs frequencies below 200MHz and the other frequencies above that.

[@viveknepal8959]

Thank you so much for this amazing video

[@pyt22fr11]

Excellent, thanks!

[@youssefehab9633]

i do not understand the idea of approximations do we pick the approximation we want based on which thing we are interested in ?! or depends on the application itself i also do not get how can we measure the noise and for example if i am using a sensor and i designed the suitable filter for it will i but it before the input signal ???

[@mnada72]

So each type of these filters will have all kinds of high pass, low pass , band pass and band reject ? but sure the circuits will vary dapending on the kind implemented.

[@mathewselvam4961]

Nice presentation.Keep it up.Very useful information.Thanks.

[@edufunmotivation4397]

Sir please provide the video on antenna

[@YashaswiniYashaswini-b6u]

Ur voice is nice sir...tq for ur explanation 😊

[@radowanhossain8247]

Can you please give the transfer function derivation of second order high pass, low pass and band pass filter ?

[@YashaswiniYashaswini-b6u]

Nice explanation sir☺️

[@prabhakardas4261]

sir can you provide 1 or 2 numericals regarding all the filters to understand the concept?

[@ALLABOUTELECTRONICS]

In the next video, I will discuss about the Butterworth and Chebyshev filter design with examples.

[@prabhakardas4261]

ok sir....

[@RATH678]

Make video for elliptical inverse chebyshev bessel also

[@zuhalfirdaus1993]

Thank you very much sir, your explanation is easily understandable

[@himanshuful]

Have you made videos on LC filters or RF filters?

[@ALLABOUTELECTRONICS]

No, it is yet to be covered on the channel

[@sgvenigma7076]

Please sir can you upload video on Biquad filters

[@SureshKumar-nk2ok]

Thank u sir ,can I add different filter for low pass filter ,which is best for vhf band with low capacitor used

[@ritik3471]

Can anyone tell me?? What is the meaning of roll off here??

[@spencerchang813]

If you catch it around 4:19-4:25, he says that the roll-off is the transition between the pass band and the stop band. This area is also known as the "transition band". So, small transition band means a fast roll-off. Large transition band means slow roll-off.

[@sayantanmaiti2513]

So if I want to build a low pass filter for audio application ( the bass) which one would you suggest??

[@ALLABOUTELECTRONICS]

Butterworth filter

[@sayantanmaiti2513]

ALL ABOUT ELECTRONICS thank you sir

[@RandomDRG]

Which filter is best to use as a LPF filter for AC signals? And Why?

[@ALLABOUTELECTRONICS]

For AC signals, it depends upon the application in which it is being used. Generally for Audio applications second or third order Butterworth filters are used, as it is having flat passband response. Because in the audio application, we want all frequencies should equally get amplified and we get smooth output.

[@RandomDRG]

+ALL ABOUT ELECTRONICS The application is to filter a Input analog signal to reduce ripple from a power supply to get fs/2, and condition the adc signal. Any recommendation for LPF that best suits this application?

[@ALLABOUTELECTRONICS]

If you are using SMPS (Switch Mode Power Supply ) based power supply, then I would recommend you to use LC Low pass filter, else use RC low pass filter (passive). If the ripple is due to SMPS then the ripple or switching frequency will be in KHz, So, if you know the exact frequency then you can design that filter easily.

[@pradeepsharma4905]

Please tell me what is filter approximation,and why it is used

[@ALLABOUTELECTRONICS]

If you take the case of any low pass or high pass filter, the actual response will be always different from the ideal response. It can have ripple in the passband or stopband or it can have flat passband. There are some mathematical approximations using which we can approximately represent the different types of the possible filter response (e.g Butterworth. Chebyshev etc.). So, using these different filter approximations the actual filter response can be represented. I hope it will clear your doubt.

[@pradeepsharma4905]

Thanx for giving information

[@pradeepsharma4905]

What is the meaning of monotonic

[@ALLABOUTELECTRONICS]

If the function is continuously increasing or decreasing in one direction then it is said to be monotonic in nature. Like here, the response of the filter once starts decreasing, it will continuously decrease. So, it can be said as decreasing monotonically. I hope it will clear your doubt.

[@bhavanihm7122]

Excellent

[@anamsaniya9164]

Good approach

[@saiprakashputrevu7512]

Sir, i have tried the derivation... Can u please upload the proof for sallen key 2nd order filter approximation. So that i can verify my answer...

[@ALLABOUTELECTRONICS]

I have already updated the pdf file for the derivation. You will find the link in the description of the Butterworth filter video. (Also in the pinned comment) If you find difficulty in finding the link then do let me know here.

[@jeffsam5495]

can you please explain what you mean by step response?

[@ALLABOUTELECTRONICS]

Let me tell you a step input first. In case of Step input, there is a sudden change in input signal. (e.g Square wave). So, when you apply such input to filter or any electrical/ electronic system, then the response of that system is known as step response.

[@jeffsam5495]

thank you!

[@sagarraj4521]

Very good, thank you

[@RBartolleti]

You are the best

[@mayurshah9131]

Really very good

[@sneha5821]

Thank you very much sir..

[@SureshKumar-nk2ok]

Plz share circuit filter .I have to design filter for 50mhz to 85mhz range

[@ALLABOUTELECTRONICS]

I have already discussed the different types of filter circuits in separate videos. So, you can check those videos. For , filter design you can use filter wizard tool from analog devices. Here is the link: www.analog.com/designtools/en/filterwizard/

[@MsSujoy]

Plz upload some lessons on antenna.

[@ALLABOUTELECTRONICS]

I will plan to make series of videos on Antenna Theory, but it will take some time.

[@ShreyaRoyCello]

What do you mean by step response?

[@ALLABOUTELECTRONICS]

Step response means the behaviour or the response of the filter when step signal (e.g sqaure wave ) is applied to it.

[@wilmdrdo1228]

You are just reading a book while doing this video. no?

[@patriciabernardez6465]

Thank you!!

[@apostolosmavropoulos177]

perfect

[@andrejpodstavek3304]

Great !

[@sameerkadam4830]

thanks

[@adam58573]

Dziękuję

[@BiGreatGarraD]

Thank u!!!!!!!!!! :D

[@banothusrikanth5631]

What is D

[@skybowtw]

好可怕的印度口音...