Electrical Engineering Stack Exchange
Electrical Engineering Stack Exchange

Questions tagged [multisim]

A SPICE simulation and schematic capture package distributed by National Instruments.

This tag should be used for questions that are related to the program Multisim. Multisim is a program used for modeling electrical circuits before actually physically building them.

288 questions
5
votes
3 answers

Drawing a comparator op-amp in Multisim

I'm attempting to draw the following two circuits up in NI Multisim 10, to attempt simulation and confirm my calculations. However, I'm not sure how to represent the Vin and Vout sources. Also, multisim only seems to have amplifiers with power…
Claus Jørgensen
  • 153
  • 1
  • 7
4
votes
1 answer

Simulating a magnetic field in Spice

I am trying to simulate a circuit that involves pickup coils in Spice. How would one simulate the magnetic fields that the pickup coils can sense? Additionally, how would one get a frequency response for such an input? (By frequency response, I mean…
eqb
  • 151
  • 4
4
votes
1 answer

Simulating Charged Capacitor

Is there any in built mechanism to simulate a charged capacitor in simulation software like Multisim or Proteus? If not, is there any alternative method for simulation of partially charged Capacitors?
iluvthee07
  • 301
  • 2
  • 5
  • 12
4
votes
1 answer

Summing RMS values proof

I have a simple circuit with two sources of different frequencies. I was tasked to get a voltage output across a component. I know for a fact that adding the derived voltage of both sources acting independently will yield the peak voltage when both…
Arcadius
  • 75
  • 4
4
votes
1 answer

Simulation isn't working for high voltage amplifier

Been trying to simulate on multisim a circuit I saw about high voltage amplifier: The input is 8 Vp-p and 100Hz and reached to output of 1800 Vp-p and 100Hz. The publisher mentioned he used the following parts to build it: OP07 , LM356, MTP2P50E…
Gabriel Leeb
  • 41
  • 2
4
votes
3 answers

TTL NAND analog amplifier does not work in Multisim - why?

I have found in Dieter Nuhrmann's book an interesting approach to amplifier circuit and decided to test it. Unfortunately the Multisim simulation does not work as expected. The signal is not amplified at the output. What's wrong or what I'm doing…
Jerzy Przezdziecki
  • 657
  • 3
  • 12
4
votes
2 answers

Problems with Wien Bridge oscillator circuit simulation in Mutisim

I am trying to build a Wien bridge oscillator that oscillates at 2.1kHz and that can be switched on by a transistor. The reason for me placing a transistor switch in the circuit is so that I can turn the oscillator on and off from a PIC MCU.…
D Brown
  • 781
  • 2
  • 16
  • 23
4
votes
3 answers

Why is series LC circuit not behaving as band pass filter?

I am trying to simulate LC circuit using external source that generates square wave of 503Hz of amplitude 2V as below: Natural frequency of circuit above is 503Hz.So it must pass this much frequency.When I run the simulation of above…
Abhinav
  • 43
  • 1
  • 5
3
votes
2 answers

Problem with Wien's Bridge basic working and simulation in multisim

I am very new to the concept of Wien's bridge and am trying to make a basic circuit of it but didnt get the expected output (noise only).Tried to simulate on Multisim but got the same output.I have gone through many documents on the web but they…
akki
  • 173
  • 1
  • 8
3
votes
1 answer

Low Pass Sallen-Key filter has weird response in bode plot

I have the following circuit in Multisim and am getting the Bode plot at the bottom. Could someone please explain to me what is happening? The AD8651 is listed as having a 50MHz bandwidth. Why is it that it goes astray at 17.4kHz?? I think it might…
user1003131
  • 171
  • 1
  • 3
3
votes
1 answer

How do I simulate an audio amplifier in Multisim?

I'm new to Multisim and am using the 12.0 PowerPro version. I have designed the circuit in the question TDA2002 Audio Amplifier using Multisim: The Multisim circuit may be found here. Instead of a function generator or AC signal, is it possible to…
Harsha Alva
  • 307
  • 2
  • 5
  • 12
3
votes
3 answers

Series Parallel batteries

I am trying to simulate a series parallel battery design. When I try to simulate, I am getting this error: Voltage source loop found: V9, V1, V2, V10.
BlackHawk
  • 214
  • 1
  • 9
3
votes
1 answer

BJT current gain: Relation of SPICE parameter BF to beta

As far as I understand, the BJT (bipolar junction transistor) DC forward current gain in common emitter configuration is given by It seems those symbols all used to describe the same thing (correct me if I am wrong) Then I read that the BF SPICE…
Junius
  • 979
  • 11
  • 23
3
votes
1 answer

How to determine what kind of response this filter has

I have the next Sallen Key type filter I have determined the transfer function and the coefficients of \$a_{0}\$ and \$a_{1̣̣}\$, based on \$N(s)=\frac{Ka_{0}}{s^{n}+a_{n-1}s^{n-1}+....a_{1}s+a_{0}}\$ But then how do I use this to determine (or…
avelardo
  • 495
  • 3
  • 10
3
votes
4 answers

How can I verify the max power theorem in a buffer opamp?

I was thinking since the buffer makes the output follow the input the power should be the same in a buffer opamp circuit and a resistive load. There is the next circuit (the expected power was .5W, and besides the wattmeter is bad connected, I dont…
kong001
  • 33
  • 5
1
2 3
…
19 20