Forums.MrPLC.com > Convert 120Vac signal to 24DC signal

Full Version: Convert 120Vac signal to 24DC signal

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AmazingTrans

Jul 26 2007, 11:46 AM

hello gurus,

Currently, I want to convert a fast switchig 120Vac signal to 24VDC signal. I am thinking of using optoisolators IAC.
http://www.opto22.com/documents/0448_Std_D..._data_sheet.pdf
But what should i do to put things together, any resistor and capacitor in the input ?

Hope to hear from someone. thank you.

Johnny

paulengr

Jul 27 2007, 09:23 PM

QUOTE(AmazingTrans @ Jul 26 2007, 12:46 PM) [snapback]57015[/snapback]

Use a simple solid state relay rated for the application. Crydom is a pretty popular name but I've been buying Continentals lately. Look in a Mouser catalog (www.mouser.com) or Digi-Key. The packaged solution tends to be a lot less trouble than building your own.

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