[SI-LIST] Re: Overshoot vs. ground lead inductance
- From: steve weir <weirsi@xxxxxxxxxx>
- To: "Nijagunamurthy, Hithesh (GE Intelligent Platforms)" <hithesh@xxxxxx>
- Date: Tue, 08 Mar 2011 01:04:22 -0800
Tek and Agilent both publish equivalent circuit inputs. You can also
derive using an S11 measurement.
Steve
Nijagunamurthy, Hithesh (GE Intelligent Platforms) wrote:
> Steve, how do I estimate by hand?
>
> The probe I am using is an Active probe, but the manual does give an
> equivalent ckt.
>
>
> -Hithesh
>
>
> -----Original Message-----
> From: steve weir [mailto:weirsi@xxxxxxxxxx]
> Sent: Tuesday, March 08, 2011 2:25 PM
> To: Nijagunamurthy, Hithesh (GE Intelligent Platforms)
> Cc: si-list@xxxxxxxxxxxxx
> Subject: Re: [SI-LIST] Overshoot vs. ground lead inductance
>
> If you know your probe's equivalent circuit, then you can estimate by
> hand, or let a SPICE simulator do the work for you. If you want an
> equivalent circuit, look back about a week for discussion on scope
> probes. An article was linked that has what you need.
>
> Steve.
>
> Nijagunamurthy, Hithesh (GE Intelligent Platforms) wrote:
>
>> Hi All,
>>
>> How do I calculate the overshoot due to ground lead inductance of an
>> oscilloscope probe.
>> I am thinking, there' s an equation similar to the rise time equation
>> (tr^2 = tscope^2+tprobe^2)
>>
>> I thought V=Ldi/dt would be a good place to start. But I can't proceed
>>
>
>
>> further.
>>
>> I don't know di/dt, but I do know the rise time/fall time.
>>
>> Thanks
>> -Hithesh
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>
>
> --
> Steve Weir
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Steve Weir
IPBLOX, LLC
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Reno, NV 89501
www.ipblox.com
(775) 299-4236 Business
(866) 675-4630 Toll-free
(707) 780-1951 Fax
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