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Forum index » Electronix » design
Spice circuits with photoresistors or photodiodes
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Nicolae Fieraru
electronics forum beginner


Joined: 17 Jul 2006
Posts: 1

PostPosted: Mon Jul 17, 2006 8:32 am    Post subject: Spice circuits with photoresistors or photodiodes Reply with quote

Hi All,

I would like to simulate a circuit with a photoresistor or photodiode, to
see how it acts when it receives a light signal. What are the solutions that
can be used? I don't have such components in my component list. I am not too
concerned with characteristics of the photodiode/photoresistor, just the
response of the circuit.

Regards,
Nicolae
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Christian Keck
electronics forum beginner


Joined: 17 Jul 2006
Posts: 1

PostPosted: Mon Jul 17, 2006 2:27 pm    Post subject: Re: Spice circuits with photoresistors or photodiodes Reply with quote

Nicolae Fieraru wrote:

Quote:
I would like to simulate a circuit with a photoresistor or photodiode, to
see how it acts when it receives a light signal. What are the solutions that
can be used? I don't have such components in my component list. I am not too
concerned with characteristics of the photodiode/photoresistor, just the
response of the circuit.

Model the current induced by the incoming light using a current source.
There are SPICE models of optocouplers on the net.

Christian
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Google

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