Hi Grahame Texas Instruments has a line of digital isolators specifically for this kind of service. Perhaps some of them can be of use to you...
http://www.ti.com/lsds/ti/interface/digital-isolator-products.page Gastón On Saturday, November 30, 2013 3:13:39 PM UTC-3, Grahame Marsh wrote: > > > I'm looking to pass a, i2c bidirectional data signal between two systems > that have about 2kV voltage difference between their respective > "grounds". I can find several device on, say, Mouser's website but I'm > getting lost with all the insulation terms. There is a variety of test > voltage conditions like "Vrms for 1 minute" and "galvantic isolation in > kV". These voltages are typically 4 - 6kV. But I also find "Maximum > working insulation VIORM 566 voltage" - so does this mean a normal > working voltage difference? And so well less than 2kV. > > Sorry, but I need an idiot's (that's me) guide to what isolation voltage > I should be looking for to isolate these systems that live 2kV apart? I > know there are solutions that use multiple optoisolators and drivers but > I was looking for a single chip solution. Any helpers please? > > (The application is between a microcontroller and the cathode circuit of > a CRT so it is almost on topic.) > > Grahame > -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send an email to [email protected]. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/aa52e439-48e5-4c05-b1ea-f1142f1e09f8%40googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
