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Simulating CTR Degradation for LTspice optocoupler models.

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Akanimo

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Hi,

How can CTR degradation be simulated for optocoupler models that came with the LTspice?
 

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Review the optocoupler subcircuits. PC817 has e.g. an Igain parameter that is adjusted in the different A to D symbols. Make a modified symbol or subcircuit that gives access to the gain.
 
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