hello.
I am currently trying to figure out what range of input ranges, both AC and DC, that I can use for the circuit that I have built (attached is the circuit).
I'm trying to use a wide range of high voltages and isolate them. The 24 Vdc on the output of the opto gives the my load a constant input of 24V. The load is a LOW ACTIVE input, so when the opto turns on, it will take the 24V to ground, and send a low signal to my load.
I have tested the circuit from 90 Vdc to 120 Vdc and it works. I was wondering if this circuit can be also used for AC voltage as well. I think it can, because I have inputed the extra diode in parallel to the LED in the Opto to take on the AC voltage and also the 51V zener.
If anyone can take a look at my circuit and give me some feedback, that would be great. Let me know if you have any other questions to try and help me.
Thanks!
I am currently trying to figure out what range of input ranges, both AC and DC, that I can use for the circuit that I have built (attached is the circuit).
I'm trying to use a wide range of high voltages and isolate them. The 24 Vdc on the output of the opto gives the my load a constant input of 24V. The load is a LOW ACTIVE input, so when the opto turns on, it will take the 24V to ground, and send a low signal to my load.
I have tested the circuit from 90 Vdc to 120 Vdc and it works. I was wondering if this circuit can be also used for AC voltage as well. I think it can, because I have inputed the extra diode in parallel to the LED in the Opto to take on the AC voltage and also the 51V zener.
If anyone can take a look at my circuit and give me some feedback, that would be great. Let me know if you have any other questions to try and help me.
Thanks!
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