What is the output of a photodiodes?

[the Physic freak]

what is the output current from a photodiode like (in mA, uA, or...)?
what is the output voltage from a photodiode like (in mV, uV, or...)?

 

[Hootenanny]

There is a lot of information given already in this thread; https://www.physicsforums.com/showthread.php?t=116631.

Also, basic information is given at wikipedia;
http://en.wikipedia.org/wiki/Photodiode
http://en.wikipedia.org/wiki/Solar_cells

~H

 

[the Physic freak]

i am sorry, but i didn't find any information about the size of the output current and voltage of a photodiode, as i am not sure what size to set on the multimeter to measure the current and the voltage

 

[the Physic freak]

Also can anyone tell me where i can find a graph of the characteristic of a photodiodes please?

 

[Hootenanny]

It will depend on what photodiode you use, the maximum current should be specified in the data sheet. Don't quote me on this but I think the last one I used (about 2 years ago) has a maximum photocurrent of 50mA.

~H

 

[the Physic freak]

thx a lot for the information Hootenanny, do u have any good website for photodiodes(one that will show a graph for its characteristics and output current)? because i find one, which shows an ordinary photodiodes, but it doesn't tells me about its output current and its characteristic

 

[chroot]

Photodiodes do not have an "output voltage," because they can't operate as photodiodes unless they are already reverse-biased by an externally applied voltage. They have an "output current" which depends on their illumination. As has been said, there are many, many photodiodes on the market, all a little different.

Browsing a distributor like digikey.com should give you plenty of choices.

- Warren