From Friday, April 19th (11:00 PM CDT) through Saturday, April 20th (2:00 PM CDT), 2024, ni.com will undergo system upgrades that may result in temporary service interruption.

We appreciate your patience as we improve our online experience.

Multisim and Ultiboard

cancel
Showing results for 
Search instead for 
Did you mean: 

Analyzing Quiescent Currents and Voltages of H-Bias Common Emitter Amplifier

Solved!
Go to solution

I am trying to analyze the DC Quiescent values for a 2N3904 Transistor. I determined the resistor values I will need to have to work with a 20V supply and a quiescent collector current of 2.5 mA. My question is how do i simulate this transistor in multisim online the default npn does not seem to give the expected values. I have the spec sheet for the transistor and it has spice data but i am unsure how to use this.

https://www.multisim.com/content/wG7r9EyWbgNqEoruCmpYVg/dc-analysis-h-bias-amplifier
0 Kudos
Message 1 of 3
(2,710 Views)
Solution
Accepted by Jaydaar

Hi Jay!

 

from my understanding, this is a generic npn transistor. If you have the SPICE model of the 2N3904, you can compare and edit it with the one on Multisim Live. I have attached a screenshot on where you can check this. 

 

Once you found it, you can edit it and run your tests.

 

Have a great day!

Message 2 of 3
(2,685 Views)

I realized my version is trial so I cannot change the model. thank you

0 Kudos
Message 3 of 3
(2,676 Views)