Re: [IBIS] How to generate IBIS models for Relay:

Hello Tom,

Thanks for the suggestion. I would make progress with suggestion given 
by you. And try modeling it
by using Series switch.

Thanking you
Shrikant GK
Tom Dagostino wrote:
> Sounds like you need to spend a little time reading the IBIS cook book.
> There is a lot of information in it that will guide you to better
> understanding of IBIS and its capabilities.  
>
> A relay consists of two major elements, the coil that provides the force to
> close the relay and a set of contacts that make the controlled circuit.  The
> coil can be modeled with a Rpower model type.  The inductance of the coil is
> the L of the package, the resistance of the coil is the R and you can add
> another pin and parallel a clamp diode if needed.  The diode clamp would be
> a terminator model with a powerclamp and just put a short between this dummy
> pin and the relay's coil model.
>
> The relay contacts would be modeled as a series switch model.  Series
> Switches are normally FET switches but if the series resistance is modeled
> small enough it will look like a mechanical switch.
>
> Diodes can be added to nets with terminator models if the diodes are
> connected to a power or ground node.  The diode will just be a power or
> groundclamp in the model.
>
> Sockets and connectors are just connectors. Depending on your target
> simulator there are several different means of modeling them.  The model
> type you choose will also be dependent on the bandwidth required in your
> application and if you need to model coupling in the connector or socket.
>
> Depending on the resources available to you either SPICE or measurements
> will get you most of the data for the models along with the information
> contained in the datasheets for the parts.  For the connectors/sockets you
> might want to add a 3D field solver to your tool kit.
>
> Good luck
>
> Tom Dagostino
> Teraspeed(R) Labs
> 13610 SW Harness Lane
> Beaverton, OR 97008
> 503-430-1065
> 503-430-1285 FAX
> tom@teraspeed.com
> www.teraspeed.com
>
> Teraspeed Consulting Group LLC
> 121 North River Drive
> Narragansett, RI 02882
> 401-284-1827 
>
>
> -----Original Message-----
> From: owner-ibis@server.eda.org [mailto:owner-ibis@server.eda.org] On Behalf
> Of Shrikant G Kadadevar
> Sent: Tuesday, January 22, 2008 9:32 PM
> To: ibis user; ibis user
> Subject: [IBIS] How to generate IBIS models for Relay:
>
> Hello Sir,
>
> 1. I was asked about IBIS model generation for Relays, Diodes, Sockets 
> and Connectors.
>
> 2. Please can you help me about how IBIS models can be generated for 
> above components.
>    Does current IBIS standard supports all the above components. How can 
> Relay characteristics be described in
>    current IBIS models. Also if possible please send an example file.
>
> 3. I also read about ICM (IBIS InterConnect Models) models. What are 
> these models. Will the Relay and Socket are considered as connectors.
>
> Please do help me in this regard.
>
> Thanking you
> Shrikant GK
>
>
>   


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