hye everyone,im new here....now im stucked with thi smedical Instrument homework where my lecturer want me to construct a current to voltage converter circuit using OP07CP and photodiode,,but in Multisim software, my lecturer said i can't directly take the photodiode to the circuit because i dont have any light source, so he suggest to use opto-transistor whether phototransistor or optocoupler..but how can i draw it in Multisim???? help me find this out,,,

 

Hello,

Have a look at the following PDF:
http://educypedia.karadimov.info/library/sboa035.pdf

Bertus

 

actually i have go through this pdf before but it doesn't help me a lot,,there is something like this my lecturer said.

 

Why not just replace the photodiode with an adjustable current source and a parallel (equivalent) cap?

 

hye @joeyd999 can you tell me futher about this?
where can i take those component in multisim software?

 

hye @joeyd999 can you tell me futher about this?
where can i take those component in multisim software?

Sorry, I don't use multisim. But others here do. Someone will probably be around shortly.

 

@joeyd999 thank you so much, hope there will be.

 

A current source is a basic signal source component in Spice (Multisim). It will be found in the same location in the software tab as a voltage source.