• AVR Freaks

Hot!ICSP-Programmer with Galvanic Insulation

Author
eg67150
New Member
  • Total Posts : 11
  • Reward points : 0
  • Joined: 2013/05/14 01:35:58
  • Location: Germany, Baden-Württemberg
  • Status: offline
2019/03/27 08:52:10 (permalink)
0

ICSP-Programmer with Galvanic Insulation

Hi there,
Does anybody knows of a Programmer with galvanic insulation either on the ICSP or USB side ( something like the ST-Link Iso we use on STM32F chips)? The Programming doesn't need ot be very fast, but has to be reliable.
This is targetted to device using PIC18F26K22 and PIC18F46K22 placed on systems powered by 230VAC, 400VAC(3Ph) and eventually 480VAC (3Ph).
I haven't found any so far. We are thinking about building the insulation ourself with ADuMs or Optos, but if we can find an affordable and reliable ready-to-use solution, this could save us time .
Thanks
Eric
 
#1

6 Replies Related Threads

    NKurzman
    A Guy on the Net
    • Total Posts : 17248
    • Reward points : 0
    • Joined: 2008/01/16 19:33:48
    • Location: 0
    • Status: offline
    Re: ICSP-Programmer with Galvanic Insulation 2019/03/27 09:14:28 (permalink)
    0
    The Real-Ice has an optional Isolator, but it is Not Cheap.
    Keterex makes an USB-150 the works with the ICD 3 ( and ADuMs solution)
    Cheaper ones (ie B&B Electronics also ADuMs) should work with the PICKit 3/4 and the ICD4 (The ICD4 has an external power Plug).
     
     
    #2
    NorthGuy
    Super Member
    • Total Posts : 5379
    • Reward points : 0
    • Joined: 2014/02/23 14:23:23
    • Location: Northern Canada
    • Status: offline
    Re: ICSP-Programmer with Galvanic Insulation 2019/03/27 16:18:38 (permalink)
    0
    We have an isolated programmer:
     
    https://www.northernsoftware.com/nsdsp/pi.htm
     
    It is fast and reliable. It is LVP only and it supports both of your devices.
     
    #3
    SpokaneNexus
    Super Member
    • Total Posts : 419
    • Reward points : 0
    • Joined: 2013/02/05 14:53:25
    • Location: 0
    • Status: offline
    Re: ICSP-Programmer with Galvanic Insulation 2019/04/23 08:27:11 (permalink)
    5 (1)
    I know this thread is a bit dated, but we too needed an isolated ICD3. The best solution we found, and the one we use daily now, is the LTP2884 from Linear Tech (yes, that Linear, the chip company now owned by Analog Devices). DigiKey stocks it for $150. Nothing fancy, no drivers, it does EXACTLY what you expect. It has a separate wall wart power supply to power its own internal board so the USB port doesn't see the additional load. We use it all the time now, even on non-isolated boards.
     
    Very happy with the LTP2884, a great solution for this particular requirement.
    #4
    NKurzman
    A Guy on the Net
    • Total Posts : 17248
    • Reward points : 0
    • Joined: 2008/01/16 19:33:48
    • Location: 0
    • Status: offline
    Re: ICSP-Programmer with Galvanic Insulation 2019/04/23 08:36:00 (permalink)
    0
    Nice.  The Aux 12 volts is the key.  Most of the Regular ones do not have the Needed Power.
    I wonder if an ICD4 would work with a regular Isolator since it has and AUX Power input on the Puck.
    #5
    Mysil
    Super Member
    • Total Posts : 3322
    • Reward points : 0
    • Joined: 2012/07/01 04:19:50
    • Location: Norway
    • Status: offline
    Re: ICSP-Programmer with Galvanic Insulation 2019/04/23 09:18:19 (permalink)
    0
    Hi, 
    There are various Isolated USB hubs and USB isolators from suppliers of  industrial communication equipment.
    One of the possibilities may be Advantech:
    https://www.advantech.com...4f3a-9e7e-dc5df0519cda
    I believe they have merged in the former B&B Electronics company and their products.
     
    Another possibility: https://intona.eu/en/products/7054
     
    There may also be fiberoptic extension links for USB, but there may be some products that support only USB 3.0 High Speed, and thus may not work.
     
        Mysil 
     
    post edited by Mysil - 2019/04/23 09:28:54
    #6
    SpokaneNexus
    Super Member
    • Total Posts : 419
    • Reward points : 0
    • Joined: 2013/02/05 14:53:25
    • Location: 0
    • Status: offline
    Re: ICSP-Programmer with Galvanic Insulation 2019/04/23 09:28:08 (permalink)
    0
    Yep, we found quite a few "USB Isolators" but the elegant simplicity of the Linear device - not to mention that they publish EVERYTHING about it including full schematics and PCB artwork (it's really a sort of marketing tool for their USB isolator chip) - pushed it to the top of the list for us.
    #7
    Jump to:
    © 2019 APG vNext Commercial Version 4.5