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Sorry, I meant "if I do Temp < - 273.15". Watch how the curve turns right:
you can also tabulate the graph using Excel and with this equation:
=1*10^-12*(EXP( (1.6 * 10^-19 * A1) / (1.38 * 10^-23 * (B1+273.15))) -1)
In A1 cell : 0 And then lets say a range with 0 to 0.9 down
Then in B2 cell a...
Here you have my graph with Geogebra, also with negative Vd values:
look: -242 Celsius, (if I do Temp < 273.15 Celsius, the graph inverts to the right, but this is no the question, just saying)
then I graph to 25 Celsius:
And to Vd<= -14000 V:
(Insist: this graph is made by me with Geogebra)...
Ok, let's see what happens with the function. I only graphed it using Geogebra:
Edit: Oh, I dont know why this .gif does not animate.
I will try to put it in a web page.
But meanwhile I will post two pictures:
Shockley equation is a general equation, so I think it does not matter what happens...
Thanks, BraththeRad and FvM. This is what I mean:
Yes, it is Shockley eq. I am trying to understand what you say. And I think that if Shockley eq. is a general equation, it should behave in an understable way. I am doing a simple graph, setting values of Temp like I said before, first less T...
thank you, dick_freebird, (I dont understand what is tempco.) I mean if we only graph the equation, results what I said, I am only refering to graphing, If 1.- I do write 273 Kelvin, I get a curve. 2.- Then if I do write 298 Kelvin, I get another curve, the second curve appears more to the right...
Hi, I have a question about the diode equation function. If I graph vd versus id for a given temperature, it returns me a characteristic curve, but when I try with a higher temperature and I graph the equation, I find a curve more to the right, however the electronics books say that at a higher...
1) I=2+4sin314t
2) 4 is the amplitude (or peak to peak) current.
3) But rms only takes the half and multiplies it by sqrt(2)/2, wich results 0.7071....
4) Then by superposition: I=2+(4/2)*.7071= 3.4142 A
Thank you both for helping me. I finally could upload the counter using visual basic net. I did it uploading a text file and then reading the variables in a php page
Re: I'd appreciate if you can help me to design a ciruit
(Your question is kind of very basic). You can use an audio ampliffier like the LM380 for example. You can even google it and get the details.
I would do something like this. And perhaps add a stage with another transistor to invert the signal at the end. (I posted an application (flash swf) that calculates the resistors in a website designed by me, but I don't know if I can post the link here. If you know I can, let me know)
**broken...
Hi, I am designing a little system that counts de passsage of objects in a band, and I am trying to put that value in a website so that could be read anywhere. because I wish to watch it standing in another city. I made an embedded circuit and from wich I take the variable to a Visual Basic...
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