Hello and Happy New Year.
Nearly every video, tutorial and article concerning Optocouplers goes into detail as to what they do and how they work.
Rarely is any information given as to the possible effects on a circuit when they fail or if there are any variations in the effects they can have on a circuit when they go bad.
Is it as simple as "If they stop working, the output completely ceases" ?
And if that is the case, then I can see how no information is necessary. But I am not sure about that.
Specifically, is there any way that a failed or failing optocoupler could case voltage fluctuations including negative dips in the voltage at the output?
What about low output?
Or is it black and white....they work and the output side stabilizes at the intended voltage....or they don't work and there is nothing at the output?
I have an APC XS1500 battery backup that properly charges the battery on AC when the unit is switched OFF.....but once I power the unit ON and it goes into standby mode (waiting for AC power loss) there is fluctuating voltage at the output and the battery actually drains. I believe I measured AC current at the output. I have not been able to locate a bad diode or MOSFET in the system.
Thanks
Nearly every video, tutorial and article concerning Optocouplers goes into detail as to what they do and how they work.
Rarely is any information given as to the possible effects on a circuit when they fail or if there are any variations in the effects they can have on a circuit when they go bad.
Is it as simple as "If they stop working, the output completely ceases" ?
And if that is the case, then I can see how no information is necessary. But I am not sure about that.
Specifically, is there any way that a failed or failing optocoupler could case voltage fluctuations including negative dips in the voltage at the output?
What about low output?
Or is it black and white....they work and the output side stabilizes at the intended voltage....or they don't work and there is nothing at the output?
I have an APC XS1500 battery backup that properly charges the battery on AC when the unit is switched OFF.....but once I power the unit ON and it goes into standby mode (waiting for AC power loss) there is fluctuating voltage at the output and the battery actually drains. I believe I measured AC current at the output. I have not been able to locate a bad diode or MOSFET in the system.
Thanks
Last edited: