Comments on: USB Isolator.

By: Paula Swanson

Paula Swanson — Thu, 25 Aug 2011 21:15:55 +0000

Did you ever find a suitable enclosure?

By: josh

josh — Sun, 22 May 2011 14:46:13 +0000

Ok, I tried it and using the same power supply for both sides doesn’t seem to work.

By: josh

josh — Mon, 02 May 2011 01:00:37 +0000

I really like that there are many options for powering this board! Do you think I can disconnect the host side USB +5V and then power both sides from the same regulated external 5VDC?

By: jeff m

jeff m — Fri, 25 Mar 2011 01:06:13 +0000

I managed to most of my hum issues from my usb sound card thats buss powered thats connected to my laptop, but im getting this crackling sound still that happens whenever my laptops power connecter is plugged in, and is reduce considerable when i unplug it. The cracklinng i more severe when i move windows etc. Will this remove these issues, from my audio stream.

By: oleg

oleg — Sat, 05 Mar 2011 17:41:39 +0000

You can use portable charger but since they boost 5V from 3.7V battery, you can get switcher noise.

All payment options are configured to use https.

By: Bubu

Bubu — Sat, 05 Mar 2011 17:00:43 +0000

should be a nice thing!
I believe the external power supply is not necessary, provided the current needed is under 400ma, one can use an isolated DC-DC converter. Something like P10AU-0505ELF. If I buy the USB isolator I would either use that or one of increasingly popular mobile chargers, perhaps with an LDO regulator for cleaner 5V.
Is there a payment option through https?

By: oleg

oleg — Thu, 03 Feb 2011 14:37:21 +0000

This is correct – the $25 kit contains PCB, ADuM4160, caps, resistors, jumpers, and both USB connectors. It was made for people who plan to use their own power supply for the device side. You can see what is included in each kit here -> http://www.circuitsathome.com/adum4160-usb-isolator-assembly-guide

By: Greg Shay

Greg Shay — Thu, 03 Feb 2011 13:31:54 +0000

Hi Oleg,
Nice little board…!

Does the ‘Parts kit, isolator only $25″ include the bare PCB and the USB connectors?
Everything except the DC/DC chip and its support components, right?

Thx
Greg

By: Norman Bishop

Norman Bishop — Thu, 27 Jan 2011 14:58:33 +0000

The FTDI is great, the RS232 side shound be able to communicate with TTL and RS232 levels.

You can contact me directly here nbishop@cplus.org

Norm

By: oleg

oleg — Thu, 27 Jan 2011 08:12:03 +0000

I can make this design – let me figure out lead time and cost, I’ll contact you off–list next week with numbers. Also, do you have a preference for USB-to-serial converter chip – my favorite is FTDI?

Oleg.