Hi all,
We are doing both development of FPGAs, uC and PCB hardware boards. While doing this we have had the problem both in lab and in field, that the boards had one ground potential and the PC another - the result range from faulty programming to destroyed programmers and boards.
The solution is quite simple as all programmers today are USB. - Use a USB isolator. Some existed, but the price was $100-$1000 and the devices needed external powersupplies.
We have made a Full Speed USB 2.0 Isolator with analog device chip Adum 4160 and a good isolated DCDC with more than 80% efficiency. All boxed in a small USB stick - easy for LAB and field programming - just place the USB2ISO device between PC and programmer and the described problems are history.
See http://electronics-shop.dk/usb-isolator - Where you can end your troubles for $50 bucks and buy 10pcs and get free shipping.
Works great for our projects and alot of other technical projects - The first batch is almost sold and the next 1K is being produced in mid August 2010.
Best Regards,
Soren
Electronics-shop.dk
We are doing both development of FPGAs, uC and PCB hardware boards. While doing this we have had the problem both in lab and in field, that the boards had one ground potential and the PC another - the result range from faulty programming to destroyed programmers and boards.
The solution is quite simple as all programmers today are USB. - Use a USB isolator. Some existed, but the price was $100-$1000 and the devices needed external powersupplies.
We have made a Full Speed USB 2.0 Isolator with analog device chip Adum 4160 and a good isolated DCDC with more than 80% efficiency. All boxed in a small USB stick - easy for LAB and field programming - just place the USB2ISO device between PC and programmer and the described problems are history.
See http://electronics-shop.dk/usb-isolator - Where you can end your troubles for $50 bucks and buy 10pcs and get free shipping.
Works great for our projects and alot of other technical projects - The first batch is almost sold and the next 1K is being produced in mid August 2010.
Best Regards,
Soren
Electronics-shop.dk
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