So I have an integral:
## \delta W=\int_{-\Delta}^\Delta\left[x^2\left(\frac{d\xi}{dx}\right)^2−D_S\xi^2\right]dx ##
Here ##\xi## is a function of ##x## and ##D_S## is a constant. ##\Delta## is just some small ##x##. Now I need to set the variation of ##\delta W## to 0. Do do this I...
Ok so I might be doing something silly but I just don't understand what is going on here. So the integral:
i = ∫ sin x (cos x)^3 dx
First I say u = cos x. So du = - sin x dx.
So now I have i = ∫ - u^3 du. Which gives: i = -(1/4)u^4 or -(1/4)(cos x)^4. Easy.
But if I say u = sin x...
Carl, I'm really liking the solar cell you suggested and I may even get it for fun since its so cheap. I sent an e-mail to the company twice to get the spectral response---no reply. Anyway cheers for that! Also for telling me about digikey.
You're right Dave I don't think any photodiode would...
Yeah I was talking about photodiodes but solar cells would work just as well. Basically what I need to do is use a laser(s) to illuminate photodiodes/solar cells and get a constant output voltage of about 5-10V which is the voltage input for an HV module that will give me an output of 2kV which...
Or is it something like for any given wavelength/intensity (as long as its bright enough and above the threshold wavelength) the output voltage will be very close to the open circuit voltage?
Hello everyone!
I'm trying to figure out how to calculate the output voltage of a photodiode in the photovoltaic mode.
I want to generate about 5-10V using lasers and a series of photodiodes without using an op-amp (just Vout of the photodiode equvivalent circuit). If I could get any help...