use a custom signal from file to simulate using multisim

[JOSEALB85]

Hi, i need to use a custom signal in a data file to simulate a circuit. is there a way that multisim reads a data file to create a signal???

Regards...

Jose Alberto Morales de los Rios

[Fernando_D]

Hello José Alberto,

Using custom signals as an input to Multisim will give you better simulation results. There are two posibilities:

1. Multisim can read LabVIEW Measurement files (LVMs) using the LVM_VOLTAGE component. However, the LVM file needs to be generated using LabVIEW. You can find more info about this approach here. 
2.  Use the Piecewise Linear Source (PWL) component. In this case you need to create a text file with the values of the signal you want to generate. The data to be import must be voltage or current vs Time. In a text editor (e.g. Notepad), you can simply have two columns: time and voltage. The PWL source can be found in the Master Database, Sources Group, SIGNAL_VOLTAGE_SOURCES family. Place one on the workspace and open its Properties to see the format of the text file.

I'm attaching a zip file that contains an example. Give it a try and let us know how this works.

Regards,