On 01/12/2013 01:22, David Forbes wrote:
On 11/30/13 11:13 AM, 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 ...
Grahame,
A quick Google search turned up this HP (Agavo) app
Quoth Grahame Marsh at 2013-12-01 19:18 ...
Thank you for the paper it has helped a lot - if I have read it
correctly, the best performance is a catagory 3 opto coupler can stand
off 1kVDC for 100 000 hrs. So it looks like my search for a part ends
'cause there is no such part... back to the
On 01/12/2013 09:32, Matthew Smith wrote:
Quoth Grahame Marsh at 2013-12-01 19:18 ...
Thank you for the paper it has helped a lot - if I have read it
correctly, the best performance is a catagory 3 opto coupler can stand
off 1kVDC for 100 000 hrs. So it looks like my search for a part ends
Standing off 40kV is much more fun…
Yeah, one monitor I had used fiber optics for that trick,
Cheers Grahame
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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:
Hi Grahame,
I don't know if this is of any help but if you want to go for the $1 solution I assume you like to test things with parts you already have lying around. I was thinking, you could use 2 optocouplers in series so that each carries 1kV. The only "problem" is that you need to have a power
Quoth Michel van der Meij at 2013-12-02 08:16 ...
...The only problem is that you need to have a
power supply available between the 2 optocouplers that can carry a 1kV
working voltage. For testing you could use a 9V battery, or a DC/DC
converter as in attached drawing.
You can also use
Hi
Thanks for all the comments I have now found this $5 part
/With creepage and clearance of greater than 13mm, the ACNV2601 is
designed to provide high isolation voltage (7500 Vrms). It can withstand
a continuous high working voltage of 2262 Vpeak and a surge voltage of
12,000 Vpeak//
/
Delightfully on topic for me! This makes the second part that I'm using perhaps
well outside its design limits. (The first was Michel's pointing out that my
bias on the DAC's analogue ground is outside parameters.)
I hadn't thought too much about the 6N137 isolation wear
problem, beyond just
Why not just make your own optocoupler? Fill a lexan or acrylic 10 cm tube
with clear, slow-setting epoxy and then affix an IR led on one and a
darlington phototransistor on the other end, with these two components
serving as end plugs for the epoxy. Then paint the unit black with a
low-voc
Alternatively, for a simpler approach, take a look at this 12 kV single
component isolation solution:
http://www.micropac.com/images/HVOC/66353%20Datasheet.pdf
It's even space-qualified.
On Sun, Dec 1, 2013 at 9:49 PM, Ulysses Balis ulba...@gmail.com wrote:
Why not just make your own
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