Path: utzoo!utgpu!news-server.csri.toronto.edu!mailrus!cs.utexas.edu!uunet!tut.cis.ohio-state.edu!quanta.eng.ohio-state.edu!baloo.eng.ohio-state.edu!mzaik From: mzaik@baloo.eng.ohio-state.edu ( ) Newsgroups: sci.electronics Subject: Looking for a photo relay Message-ID: <4701@quanta.eng.ohio-state.edu> Date: 10 Apr 90 19:43:56 GMT Sender: news@quanta.eng.ohio-state.edu Distribution: usa Lines: 11 I am looking for a replacement of a photo relay that accepts an AC line voltage and produces a TTL level output. This device is used to convert an AC signal (comming from a motor for a short period of time at certain instances) to a TTL level pulse ( used as a RESET input for a digital control circuit). I looked for opto-couplers form TI and Signetics, but the maximum reverse voltage of the input of these optocouplers is only 6V. Any ideas where I can find such a device. Thanks for the reply.