[SI-LIST] AW: Re: Ringing in Lumped & Distributed Circuits
- From: "Havermann, Gert" <Gert.Havermann@xxxxxxxxxxx>
- To: "Rajan Hansa" <all.si.list@xxxxxxxxx>, "steve weir" <weirsi@xxxxxxxxxx>, si-list@xxxxxxxxxxxxx
- Date: Tue, 17 May 2011 14:58:43 +0200
Hi Rajan,
"seeing" no ringing doesn't mean is not there. The better the termination, the
lower the ringing, but you can be sure that every discontinuity (due to
parasitics or impedance changes) will create ringing.
BR
Gert
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-----Ursprüngliche Nachricht-----
Von: si-list-bounce@xxxxxxxxxxxxx [mailto:si-list-bounce@xxxxxxxxxxxxx] Im
Auftrag von Rajan Hansa
Gesendet: Dienstag, 17. Mai 2011 13:35
An: steve weir; si-list@xxxxxxxxxxxxx
Betreff: [SI-LIST] Re: Ringing in Lumped & Distributed Circuits
Hello Steve,
Thanks for your reply but I am sorry that I am not able to relate it with
electrical circuits.
Do you mean to say that distributed electrical circuits ring even if it's
properly terminated ?
Does ringing phenomenon ( overshoot& undershoot) in lumped circuit is
different than distributed circuit ?
Rgds,
Rajan
On Tue, May 17, 2011 at 4:53 PM, steve weir <weirsi@xxxxxxxxxx> wrote:
> Rajan,
>
> Distributed networks most definitely can and do ring. Earth's
> atmosphere up to the ionosphere makes a great example: the Schumann
> Resonance at just under 8Hz.
>
> Steve
>
>
>
> On 5/17/2011 3:53 AM, Rajan Hansa wrote:
>
>> Hello Experts,
>>
>>
>> I have a problem understanding ringing concept in lumped and
>> distributed circuits. What I have learned that lumped circuits may or
>> may not ring depending on the Q of the circuit but distributed
>> circuits with terminated load will not have any ringing.
>>
>>
>>
>> where Q for RLC circuit = (L/C)1/2 /R
>>
>>
>>
>> I would like know :
>>
>>
>>
>> 1) Why Q is not important in distributed circuits ? If it's important
>> then how termination resistor affects Q in distributed circuit ?
>>
>>
>>
>> 2) Is ringing phenomenon ( overshoot& undershoot) in lumped circuit
>> is
>> different than distributed circuit ?
>>
>>
>>
>> Rgds,
>>
>> Rajan
>>
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>
> --
> Steve Weir
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Other related posts:
- » [SI-LIST] AW: Re: Ringing in Lumped & Distributed Circuits - Havermann, Gert
