Using operational amplifiers for photo diode current to voltage conversion. www.bristolwatch.com Photodiodes and How they Work • Photodiodes and How th...
At about timestamp 5:00 you mentioned "PIN" diode. Do you know what these initals stand for? I never found out, although I hsve used them for years. OUTSTANDING VIDEO!!!
Hey great video, i have an issue the reverse bias voltage +12 v is in reference to the ground of the op amp ? Cause i use two different voltage to supply for my pd and for the op amp, thx
Great video. So now can we say that the photodiode voltage is proportional to light intensity? And if I don't use the amplifier will the photodiode voltage and light intensity curve will be a straight line?
when we connect the photodiode to the op-amp how is that a reverse bias connection ? in 2:35 and 6:50 how did it work when it's cathode is not connected to +ve supply ?
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Very clear and simple explanations. I've been designing optical front ends for a while and wanted a better way to explain things.
Fantastic video.
Thank you, your video was very helpful in sri lanka
Nice simple video explaining with clarity
I Don't usually leave comments, but really nice video!
Thank you, your video was very helpful!
settings>speed>1.5x
you're welcome
LOLOLOLOLOLOLOO!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Thought you were kidding, but damn.
You are correct lol
quite helpful video..
thanks..
Hi friend. Do you have any information for the distance of activity of this infrared diode.
Great Photo-diode info, would the opto-isolator Vishay IL300 or HCNR200 work as an linear bipolar amplifier (+/-) 0 to10 vdc with the LM741? thanks.
ooops that should be IL300 Vishay linear optocoupler isolator thanks
thank you sir.
At about timestamp 5:00 you mentioned "PIN" diode. Do you know what these initals stand for? I never found out, although I hsve used them for years.
OUTSTANDING VIDEO!!!
A PIN diode refers to the way the divice is doped. See www.electrical4u.com/p-i-n-photodiode-avalanche-photo-diode/
Nice video, thanks :)
Hey great video, i have an issue the reverse bias voltage +12 v is in reference to the ground of the op amp ? Cause i use two different voltage to supply for my pd and for the op amp, thx
I'm sure you can not sure how. The resistors will have to be changed.
Incredible video. Is there a problem if the LM741 is supply with o to 12V? I am not sure how to get -12 V from my voltage regulator circuit.
It would be easier to use a LM358.
Great video.
So now can we say that the photodiode voltage is proportional to light intensity?
And if I don't use the amplifier will the photodiode voltage and light intensity curve will be a straight line?
You need the amplifier.
@@LewisLoflin then I can say that photodiode voltage is proportional to light intensity?
what LEDs have you used, what are the specifications of LED and photo diode?
They were white 1 watt LEDs. I ran them I think at 400mA.
NTE3033 and the LEDs are generic.
when we connect the photodiode to the op-amp
how is that a reverse bias connection ? in 2:35 and 6:50 how did it work when it's cathode is not connected to +ve supply ?
There was a positive voltage feedback through the output resistor. Also the photo diode can generate a small voltage like a solar cell.
Do you see any reason not to use a comparator as opposed to an op-amp?
The amp is needed to boost the current which is very small.
Mamraj sir zindabad
How much does an OPAMP cost on average?
Great video. I am using LM324. How can i connect an arduino in the analog inputs so it can read the voltage? thank you
As long as the output voltage does not exceed 5V.
@@LewisLoflin it doesn't i checked..but I meant the demonstration on how to do it