We can select a capacitor for the moving mass , which includes coils, the mass of the cone. And further we can select a capacitor again for the air load which also increases the mass of the cone; it is also an important parameter for creating the speaker equivalent model.
So, we have selected one inductor for the Suspension Compliance, one resistor for suspension resistance, and two capacitors for our Air load, and moving mass. Now, the next important thing is how to connect all these to make an electrical equivalent model of speaker. The resistance R1 and inductor L1 are in series connection which is primary and which is variable using the parallel mechanical factors. So, we will connect those components in parallel with the R1 and L1.
We have added components in parallel connection with the R1 and L1. C1 and C2 will denote the moving mass and air load respectively, L2 provide Suspension Compliance and R2 will be the suspension resistance. So, the final equivalent Circuit of the speaker using RLC is shown below. This image is showing an exact equivalent model of the speaker using Resistor, Inductor, and capacitor. Now we got the equivalent model, but how to calculate the value of the components. For this, we need Thiele small Parameters of the Loud Speaker.
The small parameters are derived from the input impedance of the speaker when the input impedance is the same as the resonant frequency and the mechanical behavior of the speaker is effectively Linear.
From these parameters, we can create an equivalent model using simple formulas. Value of Rc and Lc can be directly selected from coil resistance and inductance. For other parameters, we can use the following formulas —. If the Rms not given, then we can determine it from the following equation-. Connect and share knowledge within a single location that is structured and easy to search.
I'm new to Multisim and am using the The Multisim circuit may be found here. Instead of a function generator or AC signal, is it possible to input an audio file and see its output in an oscilloscope? Gorik on the NI forums has "created a labview instrument" for importing and "asynchronous" simulation of. It was written for Multisim 11 though, and I'm not sure what effort would be required to use it in Sign up to join this community. The best answers are voted up and rise to the top.
Stack Overflow for Teams — Collaborate and share knowledge with a private group. Find More Posts by Cjuried. You can download, as I have, Multisim with Ultiboard. Check this video out: Ultiboard - National Instruments. Does this import LT Spice files? If so, I'm very interested. Originally Posted by deafbykhorns. Hi Chris, I am currently using ver. Will it be possible to measure slew rate on an amplifier circuit under simulation?
Kind Regards, Albert. Originally Posted by abetir. Last edited by Cjuried; 12th January at AM. Did you miss your activation email? This topic This board Entire forum Google Bing. Print Search. Pages: [ 1 ] Go Down. Author Topic: circuit simulation with audio output? Read times. Multisim has a speaker out device that lets you play back the results of a simulation as audio. It takes quite a while to render just a second of audio depending on how you have the maximum timesptep set to but that's to be expected.
Are there other, not incredibly expensive , programs that do the same thing? I wish Circuit Wizard did this. LTspice - it's free. Wavein and waveout spice directives.
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