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  1. #1
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    Help me about circuit HCNR200 to 220 VAC

    Hi,
    I'm using the optocoupler HCNR200 and I need to know how I can to use it for measurement 220 VAC, because I'm probing the circuit dual with two LM158 and two HCNR200, but the circuit not working.

    (The circuit that I use is of the figure 3 of the application note 1357 of Agilent technologies)

    If you can help me, very thank.


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  2. #2
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    Re: Help me about circuit HCNR200 to 220 VAC

    Can you show us the circuit and wiring in transmitters power supply and measuring circuit to 220V.

    Here is one possible way to measure 220Vac with MCU.
    https://www.edaboard.com/thread162880.html
    ---> Hike with wise men , then you will be wise <---



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