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Measuring the frequency response of an optocoupler (e.g. PC817C) with different pull-up resistors using a Bode 100.

AlouetteRAISER
Associate

My test reference circuit is from Mr. Christophe Basso's book: "Designing Control Loops for Linear and Switching Power Supplies By A Tutorial Guide"

The picture is showed as follow.

0693W00000KbyHuQAJ.pngUnfortunately, it may be a problem with my test circuit, or maybe the Bode 100's are not set up yet and I'm not getting results.

1 REPLY 1
AlouetteRAISER
Associate

Please forgive me if there are any grammatical errors in my English. I am not very good at English.