Introduction to LC Filters

[@aleksandarjevtic4075]

Honey wake up, FesZ dropped a new video

[@hedleyfurio]

Excellent as always - the signal to noise ratio and format of presenting is outstanding 👍👍

[@andrewmcfarland57]

Thanks for the Marki tool recommendation. It's just what us mathematically challenged folks needed.🙂

[@FesZElectronics]

That's why I like simulation tools, its way easier than just doing the math's the old fashion way...

[@jost459]

Redexpert from Würth Electronic is a similar tool.

[@olivierconet7995]

Real life components... but we will see it next time... What a cliff hanger 😀

[@ranaharsh365]

Waiting for RF & antenna design, functioning and simulations on this channel

[@EricPleace]

Very nice. Thank you for more good stuff. I am especially looking forward to the next in the series, about real life components with their parasitics.

[@R2AUK]

👍Band-pass filters is another good topic, double-tuned circuit in particular. This circuit is often used in amateur radio receivers / transceivers. It combines LC filters and transformers.

[@biswajit681]

In these filter series could you please cover EMI filter as well

[@vincei4252]

Greetings, great video. Just curious, is there music playing in the background of your opening monologue? If there is it's kind distracting on my audio system - if you've always had it I never noticed before. Thankfully it doesn't appear to be there in the rest of the video.

[@FesZElectronics]

I was experimenting with adding in music as background in this and some of previous videos. I'll try to do some tweaks in the future

[@johnwest7993]

Thank you for the video and the app recommendation. I'll give the Marki online app a try, though I really prefer downloadable apps. I don't like depending on the internet and the kindness of the online web page owner to always keep the free app available. I've seen more than 1such useful page pop up with a perpetual HTTP 404 error, or I want to do some dev work but I'm somewhere without a web connection. As a ham radio builder and experimenter with only a high-school (12 year) education such PC applications allow me to nearly optimize my designs without spending hours playing with variable inductors and capacitors, then measuring the values off the devices to then replace with fixed values. I've become a real fan of device value selection apps, and circuit modeling programs.

[@FesZElectronics]

I fully agree that a stand alone, local, piece of software is far more reliable in the long term, but at least for this series I will try to recommend the best tool - giving the best performance, that I can find, which is free. Anyway, there is no single correct answer when it comes to filters - you can reach the same outcome using multiple methods.

[@robertvandersanden]

A good tool to run locally on a PC is RFSim99. This is a simple mainly passive components design and simulation tool which works in the S parameter domain. The output is either as a bode plot or Smith chart. It has a few filter, impedance matching and attenuator design calculators which I find very useful. And you can run a tolerance sweep and see the effect of component variations. You can also import S-parameter files from a VNA, ie. to see the effect of a measured load or source impedance on a (filter) circuit. It is an older tool but I use it a lot for designing my (ham radio) circuits.

[@-Oleg1]

Thank you. Good job.

[@itsjyotirmoy9235]

Sir please make one video for EMI filter design and Spice simulation for an Dual active bridge converter with gate driver.

[@rapsod1911]

Inductors are hard to make and measure in nH range :|

[@fedimakni1200]

Could you provide real examples to use such filters in?

[@ВадимПлахтий-с1ж]

you are awesome!