Does Frequency Even Matter? | EMC For Everyone #2

Ғылым және технология

Does Frequency Even Matter? | EMC For Everyone #2
For this video, I'll be addressing something that is brought up often in EMC discussions: Does signal data rate matter? Or, is it actually the rise time that affects the emission?
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Пікірлер: 18

  • @flienky
    @flienky2 жыл бұрын

    I don't get why the resistor will have any effect on the rise time of the signal. The maximum voltage will get lower, but the rise time will be the same, since it is just an Ohmic resistor.

  • @karolus8517

    @karolus8517

    2 жыл бұрын

    The load will have some capacitance and there will be parasitic capacitance along the line so a series resistor essentially turns it into a RC low-pass filter. Increasing the resistance increases the RC time constant.

  • @flienky

    @flienky

    2 жыл бұрын

    @@karolus8517 that now makes sense!

  • @MicroTypeEngineering

    @MicroTypeEngineering

    2 жыл бұрын

    @flienky well crud, guess I should have clarified that! But yes, @karolus is spot on, it's an RC filter

  • @karolus8517

    @karolus8517

    2 жыл бұрын

    @@flienky also, more often than not you're driving FETs or CMOS and then the main source of the capacitance is clearer - the gate capacitance of the FET. You probably have encountered gate resistors on FETs - they are there to limit and control the rise and fall time. I thought I'd add that because it's something you might already be familiar with! But all loads will have capacitance, whether it's been wires or the PN junction between the base and emitter of a BJT. Death, taxes and parastic reactance.

  • @flienky

    @flienky

    2 жыл бұрын

    @@karolus8517 thanks dude!

  • @DarianCabot
    @DarianCabot Жыл бұрын

    Great video and demos. I'm curious if a well selected series inductor would perform better and provide steeper roll-off. I might have to build some test circuits and tinker

  • @greghjelstrom2553
    @greghjelstrom25532 жыл бұрын

    Fantastic job! I really appreciate you creating and sharing this.

  • @meysamsaeedian4735
    @meysamsaeedian47352 жыл бұрын

    Great video, thanks for sharing! It would be nice to also analyze the impact of termination resistors in terms of signal integrity.

  • @Cutycats9
    @Cutycats92 жыл бұрын

    Thank you very much great information ,🧡👌👌

  • @Janamejaya.Channegowda
    @Janamejaya.Channegowda2 жыл бұрын

    Thank you for sharing.

  • @vtolrohnit5774
    @vtolrohnit57742 жыл бұрын

    I'm curious to know what will happen in EMI signature if we put that series more closer towards the load. will those harmonics increase radiation increase or decrease?

  • @miqueles5783
    @miqueles57832 жыл бұрын

    Great video, thanks

  • @myhobbies5965
    @myhobbies59652 жыл бұрын

    Informative series

  • @rick_er2481
    @rick_er24812 жыл бұрын

    Amazing! thanks for this series

  • @Smalcesonn
    @Smalcesonn2 жыл бұрын

    I's going to be a very nice series. Keep it up!

  • @What_I_Make
    @What_I_Make2 жыл бұрын

    Well explained, I always like to watch videos that are based on basic theory, easy to watch and great for maintaining my understanding if I do not use it often. I sometimes like to pre-empt your explanation before you state it which tell me I am not brain dead yet. :)

  • @Bob-zg2zf
    @Bob-zg2zf Жыл бұрын

    pleaaaaaaase make morrrre videeeeeo!!! thank you buddy!!

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