How to Modify PNP BJT Voltages in Multisim 13 Simulation?

Thread starter etf
Start date Mar 13, 2014
Tags

Bjt Simulation

AI Thread Summary

To modify PNP BJT voltages in Multisim 13, users are advised to simulate a standard 2N3904 BJT in a common emitter (CE) circuit to observe typical Vbe and Vce(sat) values, which should approximate the desired voltages of VEB=0.7V and VECsaturation=0.2V. Instead of altering the model directly, it is suggested to first understand the existing parameters through simulation. After conducting the simulation, users are encouraged to share their circuit designs and the reasons for wanting to modify the model. This approach helps in achieving accurate results without unnecessary modifications. Understanding the default characteristics of BJTs in simulation is crucial for effective circuit design.

Mar 13, 2014

etf

Hi!
I want to simulate some circuits with PNP BJTs. I was given voltages VEB=0.7V and VECsaturation=0.2V so my question is how can I modify PNP BJT to use these voltages?

Last edited: Mar 13, 2014

Engineering news on Phys.org

Mar 14, 2014

meBigGuy

Gold Member

Don't. Just do a simple sim of a 2N3904 BJT in a CE circuit and look at what Vbe and Vce(sat) are. They will be close to the values you desire.

After that, post the circuit and why you want to modify the model.

Thread 'When 50,000 volts go through a wire at 5,000,000 FPS - The Slow Mo Guy'

View full post »

Thread 'Weird near-field phenomenon I get in my EM simulation'

I recently made a basic simulation of wire antennas and I am not sure if the near field in my simulation is modeled correctly. One of the things that worry me is the fact that sometimes I see in my simulation "movements" in the near field that seems to be faster than the speed of wave propagation I defined (the speed of light in the simulation). Specifically I see "nodes" of low amplitude in the E field that are quickly "emitted" from the antenna and then slow down as they approach the far...

View full post »

Thread 'EMF (Electromagnetic Field) & EHS (Electromagnetic Hyper Sensitivity)'

Hello dear reader, a brief introduction: Some 4 years ago someone started developing health related issues, apparently due to exposure to RF & ELF related frequencies and/or fields (Magnetic). This is currently becoming known as EHS. (Electromagnetic hypersensitivity is a claimed sensitivity to electromagnetic fields, to which adverse symptoms are attributed.) She experiences a deep burning sensation throughout her entire body, leaving her in pain and exhausted after a pulse has occurred...

View full post »