High-Efficiency 3A Battery Chargers Use LM2576 Regulators

[nasiolmasya]

im making this circuit for my senior project but i can not simulate this on multisim or proteus because libraries have not lm2576 component and i could not create this component because of my lack of knowledge. I upload the circuit's pdf on internet pls help me how can i simulate this circuit

http://rapidshare.com/files/159034907/3A_Battery_Charger.pdf

[Fernando_D]

Hello,

You need to see if the manufacturer has the SPICE model for the LM2576.  I tried to find it with no luck.  

Here is a tutorial on Component Creation:

Creating a Custom Component in NI Multisim

Regards,

[nasiolmasya]

First of all, Thank you for your reply and i have another problem.When i create the component in multisim i cant specified it how it has specific properties like output voltage 1.23 V output current 3 A .I can only make a description for component not input and output voltage can you help me with this problem??