SPICE model ofr an RGB LED

[boylesg]

Can anyone point me in the direction of a SPICE model for a 5mm rgb led?

 

[Audioguru]

Why would anybody want to simulate an LED that has three different LEDs in it? A school kid?
Simply buy one that has an English datasheet and make a circuit for its spec's. Look at its ranges of forward voltages for its three LEDs. If all three colors are lighted (lit?) then observe its maximum heating rating.

 

[samson A.]

Why wouldn't someone want to? If there is a spice model for a single LED, why would rgb LED be an exception. Sorry if that's hash.

 

[Audioguru]

I have never seen nor needed a spice model for an LED.
I have designed hundreds of circuits using LEDs, never burnt one out and all circuits worked perfectly without using a simulation.

 

[boylesg]

Primarily so that I can create a part that will be properly represented in utiboard.

 

[Audioguru]

Utiboard does not exist. Google says that Ultiboard (different spelling) is used to design a pcb, not an electronic circuit. A pcb uses physical measurements, not electronic spec's. An electronic circuit design uses electronic spec's.

Ultiboard has something to do with Multisim. Multisim is used by school kids. Is this a school assignment?

 

[boylesg]

Utiboard does not exist. Google says that Ultiboard (different spelling) is used to design a pcb, not an electronic circuit. A pcb uses physical measurements, not electronic spec's. An electronic circuit design uses electronic spec's.

Ultiboard has something to do with Multisim. Multisim is used by school kids. Is this a school assignment?

Sorry Ultiboard then. No it is not a school assignment by my projects are no doubt equivalent to school assignments because I am not a professional electronic engineer that would require simulation and PCB design software of great complexity.

 

[Audioguru]

Then why bother simulating the circuit if you do not have correct models of the 3 LEDs? Simply look at the spec's for the LED in its datasheet and design the circuit for them.

 

[d123]

Why bother? Beacause he wants to, no other reason is needed. Why get up in the morning and do anything following that negative line of thought about the activities of others.

 

[boylesg]

With Multisim and Utilboard, you design the circuit first with the former and set all the Utilboard footprints.
Then you transfer all the nets from Multisim to Utilboard and arrange them and the traces.
So I need to obtain or make a model so that I can setup an appropriate component in Multisim so that it transfers properly to Utilboard.
It is probably an easy matter to just write the model for an RGB LED based on the parameters for the red, green and blue LEDs provided.....at least for some one who is familiar with the format of SPICE. At this stage I am not familiar wit it but am willing to learn if some one knows of a good site that explains it all.