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Simulation error in psipce

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meckeweet

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HELLO,, I WANNA TO ASK WHETHER PSPICE CAN RUN SIMULATION CIRCUIT WITH IC LIKE LM2577?
AFTER THE SIMULATION , I GOT A MSG LIKE No Pspice Template for U3, ignoring BUT IN THE LIBRARY HAS THIS IC MODEL..
IS THE MODEL FOR SCHEMATIC CIRCUIT ONLY?

CAN ANYONE HELP ME??
 

The error you have is because the IC hasn´t a Pspice model, you can find it in capture but it´s only the draw. The Pspice model you can found it using Google or in OrCAD website (I´m not sure if it´s on website).
This has happened to me many times in some IC´s.

I hope it is useful to you.
 

Owh,,i see,,but how can i know the circuit is correct without do the simulation first??anyone know the software that can run circuit with ic?

Actually my project is hardware "5vdc to 240 vac(50-60hz,100w)inverter..
 

If you don't know if the circuit is correct try to download the pspice model from the OrCAD website if is on it and run the simulation.
 

For simulation design, always pick the parts/symbols from libraries present under ../tools/capture/library/pspice folder instead of ../tools/capture/library folder.
 

The isn't a Spice model for the LM2577 as far as I know. The best you can do is use Webench on National Semiconductor's web site to do the design.

Keith
 

meckeweet, Which version of Pspice you are using? Is is demo or licensed version? May I can provide you model for LM2577
 

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