I see Vrms and Vpk power sources, but how do I access Vpp power sources?

[Sanki]

I am doing a lab in the Lab Manual (MultiSIM Empahsis) to accompany Electronic Devices and Circuit Theory. I have been doing tutorials to help understand the lab and everything so far is pretty straightforward. The problem is quite simple really- I want to place a power source component that represents peak to peak. I see how to get the Vrms and the Vpk but do not see the Vpp. Please help?

[lacy]

There is no specific source component for Vpp, but when you place the Vrms it has the peak and peak to peak voltage built into it by default. If you take the O-scope and tie it into the AC Power Source what you will see is a peak voltage of 169VAC (120*1.4) and if you place the scope cursor on the positive half cycle and the other one on the negative half cycle the value you get is 336VAC (120*2.8). This is the Peak to Peak value of the 120V RMS Source. This is the same  in your house as well in the simulator, but you have to use the O-scope to see it. A multimeter will give you only the RMS value of the incoming voltage.

You can do the same thing with the Vpk source. With this source you must know the Peak value of your voltage during any half cycle (in this case 169VAC) then plug that value in to it to get the peak-peak value of 336VAC.

I hope this helps some and I have explained it well enough for you to understand.

[nishanthtc]

Hi... I m not able to find Vpk.... Pls help....

[Tien_P]

Hi,

Multisim doesn't have a Vpp source, you'll have to divide the Vpk source by 2 to get Vpp you want.

[nishanthtc]

are u sure?? bcoz wen i was using multisim 11.0 version,there i used to see Vpk(peak voltage) source. and also when our teacher gives us the print out of the circuits, it has Vpk source in it.

[Tien_P]

sorry, misread your question.  The Vpk source is in the "Sources" family, under the "Signal Voltage source", use the "AC source".

I thought you were looking for a peak to peak source.

[nishanthtc]

Thanks a lot Tien.... It was really helpful.... 🙂