rene-dev
IRAM256-2067A2 Obsolete and out of stock
Yes, Infineon discontinued it after they bought IR. New design is in the pipeline.
IRAM256-1567A2 or IRAM256-1067A2 can be used as replacement, but they only have 15 and 10A, but thats plenty for most servos. they are still available at mouser.
Have you chosen a new part for the next revision yet? I'd like to get some boards made soon so would like to start gathering components. Many thanks for this project!
the next revision is far from complete, dont bother stocking parts. Make v4 if you cant wait.
can we replace IRAM256-2067A2 with ON semiconductors- STK551U3A2A-E ? http://www.farnell.com/datasheets/2354470.pdf?_ga=2.109968454.293445377.1539426500-505894212.1539426500
No this does not work with 3 low side shunts (connected emitters of the lower igbts). The next STMBL version has a discrete 3 PH bridge with TO220, but the design is not ready yet.
okay, thank you! STK554U392A-E: this is 15A version and this works with 3 low side shunts http://www.farnell.com/datasheets/2354469.pdf?_ga=2.30356220.293445377.1539426500-505894212.1539426500 will it work?
I know I feel like a total nag. I was going to build one of these, the bought a full CNC instead....but it turns out that machine can't get "Polygonal turning" (I want it for gear hobbing) so I'm going to add a spindle I can synchronize. I was planning on the full 2Kw. I may see if I can beg for one of the older chips. I'm not requiring this....now....as I've got some other design and building to do of the mechanical parts. Any hints as to when it will be out? Any beta's? as long as its not going to catch on fire, I'm game :)
I have a source, they got 20 units of the IRAM256-2067A2 in Stock left, but these costs 44,06€ per piece. If you think it is worth it i can order these IBGT Modules. I am from Germany (Berlin).
I’m no github expert, otherwise it contact you off of this (if it’s possible). I’d order 4. If you can get my contact info, just contact me direct. I’m in the USA, so I know shipping won’t be the easiest!
Hi,
Le mar. 19 févr. 2019 à 14:16, acetylen-joe [email protected] a écrit :
I have a source, they got 20 units of the IRAM256-2067A2 in Stock left, but these costs 44,06€ per piece. If you think it is worth it i can order these IBGT Modules. I am from Germany (Berlin).
Currently in planning/design/sourcing stage of a metal mill build that I want to be as Open Source as possible, I stumbled this week on this project and would love to be part of a group buy as I sadly discovered yesterday that supplies were an issue until next version (not before months). I'd need at least 3 drives to begin with for axes, may be a 4th one if I can drive my spindle motor with STMBL. Next, there should be one more for the ATC, and two others for the rotary axes, but a handfull of versions should have been released by that time ;) :D Would be even better if part of my money could benefit the project and help further development. And I'm in south of France FWIW.
@rene-dev can yo give a guess or an etimation when the next version / generation of the STMBL Board will be published - that means without the obsolete IRAM Chips from Infineon therefore with an other IBGT module?
I am undecided or it is worth to build the actual design with the last IRAM256 Chips if maybe in a couple of weeks there will be no more need for this IBGT Module and it is replaed with a new Version with estimated Production Lifetife for ne next 10+ years. And of course a lot cheaper than the last IRAM Chips in Stock now.
Hello Rene,
Le mer. 20 févr. 2019 à 11:30, Rene Hopf [email protected] a écrit :
sounds interesting, any more info about the machine?
Don't want to hijack this thread so, shortly, project is a 500x250x250 mm work enveloppe metal mill (Z height provision for trunion for future upgrade to 5 axes), ball bearing rails, ballscrews, servo driven axes, linear encoders feedback for positioning, 3HP and above servo driven spindle (ridgid taping etc), xx30/40 tool holding, automatic tool change, auto lubrication, flood and mist coolant (hopefully center of tool too), controled by LinuxCNC (or MachineKit ?). Should maximize use of standard compliant COTS parts and design should minimize (if not avoid) need for large machining, treatment operations. Structure will be reinforced cast epoxy concrete (alternatively high strength concrete) or epoxy concrete filled steel tubes/profiles. All documentation, design models, plans, BoMs, etc. will be Open Sourced (and published here on GH), LinuxCNC is of course FOSS, I now have found OSHW servo drives (yeah !), Mesa cards at least have their firmware Open Sourced so, that's not so bad :) You guys know of OSHW BLDCs ?! Everything else should be field replaceable by widely available (non propietary !) parts. Machine should be built minimal with 3 axes and produce (most of) its own upgrades (mainly ATC, 4th axis, 5th axis trunion,...). Well, here we are, that wasn't short :P
Hi guys. Who is interested in IRAMs can find some at tme.eu At the moment they declare 63 pcs in stock. Thee ones that I ordered came from Poland as I remember The price is 22€ each for 3+ pcs
This is a different version. iram256-2067a2 is needed
ср, 20 февр. 2019 г., 20:30 5tran9er [email protected]:
Hi guys. Who is interested in IRAMs can find some at tme.eu At the moment they declare 63 pcs in stock. Thee ones that I ordered came from Poland as I remember The price is 22€ each for 3+ pcs
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If the Vers. 4.1 of the stmbl works with the IRAM256-2067A Module, i will give it a try. But i have one Question left: whats the difference between the IRAM256-2067A and the IRAM256-2067A2 IGBTs?
the way the pins are bend. https://github.com/rene-dev/stmbl/issues/91#issuecomment-399050388
@rene-dev STK554U392A-E looks to be pin compatible, do you have any thoughts on this?
https://uk.farnell.com/on-semiconductor/stk554u392a-e/motor-driver-3-phase-ac-15a-sip/dp/2424504
Aren't these the good ones ?: https://www.electronics-distributor.com/components/International-Rectifier(Infineon-Technologies)/IRAM256-2067A2.html https://www.avnet.com/shop/us/products/infineon/iram256-2067a2-3074457345624908256/ https://www.digipart.com/part/iram256-2067a2?gclid=Cj0KCQiAzePjBRCRARIsAGkrSm5PHYnI2n_eZbIYmGF9fHAkB9kmrR6MpJyiG4In5JWSB0iJVP3CEbwaAi1gEALw_wcB
Infineon IKCM series seems to be a good replacement, for example IKCM30F60GA. It would require only minor modification to the existing design.
Hi Rene, I am very impressed with you project. I know the question would I ask was asked many time but answer was not exactly for my question. Could you tell me if the new version of stmbl for TO220 will change only the HV power board or also control board ?
Thank you.
the logic board will change slightly to keep the isolation distance (the cutout for the HV mounting screw moves a bit)
