"Sam Goldwasser" wrote in message
...
"Bradley1234" writes:

"Sam Goldwasser" wrote in message
...
"Bradley1234" writes:

"klasspappa[remove]" wrote in
message
...
A diod is a diod, not a resistor.
See it as a current source, and put it into a opamp to form a
current
to
voltage converter...


A diode is a variable resistor.

the circuit reacts around the depletion region to increase or
decrease
it.
When the p type and n type silicon meet, the charges mix to form a
neutral
region which is resistive. if the applied electricity is on one
side it
makes that neutral region expand out, if its the other way the
neutral
region is compressed

Not really.

Then please to explain me how silicon diodes work? All this time I
thought
it was the depletion region but its something else?

If my simplified explanation of the solid state physics involved in PN
junctions is incorrect Im grateful to learn where Im wrong.

Please Google "Photodiode principles". There were 33,100 hits but
the first one is adequate. Thanks.

I did, and it still explains similarly to what I said. Ive worked on the
design of semiconductors, lithography, processing, doping, circuits design,
and enough circuit testing to be content with, and have trained and shared,
possibly the wrong information with dozens and dozens of people. maybe
more.

I enjoy studying, but to say just go do a google search? Id expect any such
searches will simply verify and validate what I said.



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