4 ms·
Indeed, at least I've added a fuse and Schottky diodes to protect the PC but I'd love some advises on how to be sure people won't fry their USB controllers :)
by gbin 12y ago
Indeed, at least I've added a fuse and Schottky diodes to protect the PC but I'd love some advises on how to be sure people won't fry their USB controllers :)
- comboy 12y agoIt's awesome that you made it all open source. You could probably spin up some kickstarter since making them in bulk would be cheaper (plus you get something for all the work you've done). I'd be happy to get one.
- deleted 12y ago[deleted]
- Sanddancer 12y agoAn isolating transformer, like the ADUM3160 ( http://www.analog.com/en/products/interface-isolation/isolation/standard-digital-isolators/adum3160.html#product-overview http://www.analog.com/en/products/interface-isolation/isolat...) should be more than overkill in protecting there.
- gbin 12y agoInteresting, thanks for the pointer !
- andyjohnson0 12y agoI use an Olmex isolator [1], which I believe is also based on Analog's ADuM chip. Its worth knowing that the ADuM only supports USB "Full speed" mode (12Mbit/sec) and not the normal "High Speed" mode (480Mbit/sec). [1] http://uk.farnell.com/olimex/usb-iso/usb-isolator-1000vdc-for-pc-laptop/dp/1795095 http://uk.farnell.com/olimex/usb-iso/usb-isolator-1000vdc-fo...
- kenrikm 12y agoResettable PTC fuse for overvoltage and P-Channel MOSFET for reverse voltage protection without a large voltage drop.