Intro to Filters

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FesZ Electronics

Күн бұрын

Пікірлер: 47

@dhuwarakesh6608 8 ай бұрын

In the world of multiple copies/flavour of same thing,you seem to stand out..continue the good work...❤❤

@breedj1 8 ай бұрын

Thanks again. Very well explained. Can't wait to see Ep2.

@mikesradiorepair 8 ай бұрын

The story of my life, filters. IF filters, cavity filters, band pass filters, band reject filters, high pass, low pass, filters, filters, filters. Two way radio communications would be all but impossible without filters. Other than repairs I spend most of my days adjusting band pass, band reject and notch filters.

@xDR1TeK 8 ай бұрын

I have a background in microwave circuit design and all I do now in electronics isn't even RF related. I do miss doing RF related things. I was building my own amateur transceiver but went too low jack I couldn't build the PLL side of the transmitter. Planned on 40.66MHz up to 41.7MHz within the ISM band for my region. Strictly analog isn't easy without filters. Too many things to consider. Maybe I'll resume it one day. You can't find enough practical resources online with enough documentation on theory. Most resources focus on one or the other. Aspiring engineers will have to learn things the hard way which I'm fine with honestly, but sometimes doubt in engineering is lethal, we tend to question everything without the ability of feedback on winded explanation of key subjects. Without fine-tuning, we are even lost. Pun intended. 🤣

@weerobot 8 ай бұрын

Coffee Filters

@mikesradiorepair 8 ай бұрын

@@weerobot Yep, I forgot those. I use 2 or 3 a day.

@NotMarkKnopfler 8 ай бұрын

Bull$hit filters?! 🤣

@notaras1985 8 ай бұрын

Notch?

@louco2 8 ай бұрын

You are one of the best internet electronics educator! Tank you.

@TelstarElectronics 8 ай бұрын

Very good video... and you're right... filters are a complex subject.

@minozemstan 8 ай бұрын

Excellent video. I'm looking forward to the next one.

@andrewmcfarland57 8 ай бұрын

Excellent and understandable explanation, as always. I kept thinking that much of the understanding of filter response also applies to acoustic "filters" i.e. tuned ("ported") speaker enclosures.

@FesZElectronics 8 ай бұрын

Indeed, there are a lot of similarities, since both involve waves; as a fun fact, you have SAW/BAW filters where first the electrical signal is converted into an acoustic wave, it travels trough a crystal slab, with various mechanical resonators, before being re-converted into an electrical signal again.

@BartKus 8 ай бұрын

2:05 low pass followed by high pass wouldn't leave any energy for the high pass. I think you meant low pass in parallel with a high pass?

@electroquests 8 ай бұрын

Hello, your videos are amazing, I have learnt a lot from them that engineering never taught, can't wait for further episodes. Will you be including active filters as well?

@FesZElectronics 8 ай бұрын

Indeed, the series is planned to be quite extensive; the first few episodes will cover passive and active RC filters.

@electroquests 8 ай бұрын

@@FesZElectronics Thank you! I really appreciate it!

@ElmoSyr 8 ай бұрын

Can't wait for the next video! This was great!

@bobby9568 8 ай бұрын

You had a few hundreds subscribers, now > 50k !

@abraheom 8 ай бұрын

Great video, excellent explanation, Thanks!!!

@cirobermudez 8 ай бұрын

Great video, love your content, excellent explanation. Keep it up.

@PhG1961 8 ай бұрын

Very well explained and entertaining too!

@oldblokeh 8 ай бұрын

I have to comment on the discussion at the start of the video about combining low pass and high pass filters. The statement that a low pass followed by a high pass results in a band stop filter is, at best, very misleading. The combination of low pass and high pass filters placed in series is always a band pass filter, no matter what order they are placed in. This is provided, of course, that the corner frequencies are appropriate. In order to achieve a band stop filter, the low and high pass filters must be arranged in parallel.

@FesZElectronics 8 ай бұрын

Indeed, you are right, the phrasing is not the best; I was trying to say that from a graphical point of view, you have a low pass corner first, and then a high pass corner; but the exact practical implementation is indeed with 2 filters in parallel...

@two_number_nines 8 ай бұрын

What happens when you concatenate filters? Can you directly overlay their graphs to see the behavior of the resulting filter like they teach us in many courses? I think it should be wrong, as filter designs assume no impedance in the AC voltage source and an unloaded output. My expectation is that combining passive filters will cause them to affect each-other a lot. Also, what is the actual difference in hardware between all the filter types? I can only assume Butterworth and Chebyshev are edge cases of Cauer. Said in a different way - I expect any randomly generated filter to have elliptical frequency response. Can you explain intuitively how poles and zeroes are related to the reactive components of the circuit and how resistors shift the poles and zeroes along the attenuation axis on the Laplace plot?

@two_number_nines 8 ай бұрын

@@TOPSTOPI I am sorry, but none of that answered anything I was asking for. I know about passive and active filters. In the video FesZ shows circuit diagrams that look almost identical in netlist, yet their frequency response curves are of 3 different types. The only apparent difference was the level of magnitude difference in component values. I was asking if Cauer would be the curve if all the component values and magnitudes were randomly generated. I don't care about the Laplace or Z domain equations, only the Laplace plot/diagram. AFAIK the locations of the poles and zeroes along the frequency axis correspond to resonant frequencies of LC groups and the other axis determines how fast a tone dies out (a resistor dampens the LC oscillations) or escalates (an active component amplifies the LC oscillations). I was asking how can you quickly determine just by looking at the circuit diagram where exactly on the real component axis a pole or zero would be for a passive filter.

@mr1enrollment 8 ай бұрын

thumbs up!

@MrFarenheit07 8 ай бұрын

muy buen video amiguito

@xDR1TeK 8 ай бұрын

This video was uploaded 43 min ago but i see 2 comments dating back to a day or two earlier. How?

@mikesradiorepair 8 ай бұрын

Your time zone.

@FesZElectronics 8 ай бұрын

Its released as early access to Patron supporters a few days before the public release.

@mikesradiorepair 8 ай бұрын

@@FesZElectronics Either that or the original poster owns a time machine.

@xDR1TeK 8 ай бұрын

@@mikesradiorepair but i being a poor man, i have only my dreams. No time machine.😆

@xDR1TeK 8 ай бұрын

@@FesZElectronics thank you, it was a stupid question, but i wanted to rule out doubt.

@nameless8674 8 ай бұрын

Hello, i'm a new sub to this chanel, can someone recommend me how should i start watching these videos? From basic to advanced, and from which playlist to begin? Thanks

@lad4694 8 ай бұрын

It's hard to say really. I think just look at whatever video is useful to you maybe in a project you might be doing. Else, just start with whatever one you can understand. If you're just curious, roll with the whatever makes you interested

@pieters286 8 ай бұрын

start with the introduction to LTSPICE, part of the fun is trying out the gold nuggets shared. Enjoy!