Which is why I ordered 500 of the BTS70102EP dual relay drivers and only started on the board upgrades when the parts were in _my_ inventory.
So anyone who wants to design a new version of the STMBL, or anything that uses hi-tech parts, should decide to make say 100 and order the parts. When they have arrived, then design the PC boards and get them made. It means sitting on a lot of dollars of inventory for as long as a year. Just the way it is now. John > -----Original Message----- > From: Markus Bechtold [mailto:mar...@r-bechtold.de] > Sent: October-16-22 1:27 PM > To: Enhanced Machine Controller (EMC) > Subject: Re: [Emc-users] stmbl servo drives - want to buy... > > There are newer versions of the stmbl and multiple add ons but the > development is on hold at the moment > because there is a problem: selecting parts, design the board and just > before ordering boards most of the > parts will become unoptanium rinse and repeat. I hope it will change in the > next month. > > > On 16. Oct 2022, at 14:03, Markus Bechtold <mar...@r-bechtold.de> wrote: > > > > This problem with the power stage is solved there is a solution with a new > > High power powerstage > > > > The main problem at the moment is that some critical components like the 2 > > stm32 are not available (as of > today there is a delivery date 10.03.2023) The stmbl uses some features of > this stm controllers like the > internet HIghspeed comperators and Shunt opamps. > > Hopefully there will be new stmbl as short as possible if the craziness of > > the chip market will normalise and > you have not to pay something like 45� for a stm32 > > > > > > > >> On 16. Oct 2022, at 08:41, Roland Jollivet <roland.jolli...@gmail.com> > >> wrote: > >> > >>> Now. Why is it not available? Two reasons. The key thing about the > >>> STMBL for 3 phase AC servos was that it used single driver for all three > >>> windings. Probably originally designed for washing machines. It was > >>> discontinued. A different one with slightly lower power was available. > >>> There are others but different pinout so board change. > >>> > >> > >> Yes, the same style driver chip found in all the chinese drives too. A > >> 27pin PDIP > >> I opened a Chinese drive up and it looked to be a text-book implementation > >> of one of these drivers. With very little noise suppression though. > >> > >> _______________________________________________ > >> Emc-users mailing list > >> Emc-users@lists.sourceforge.net > >> https://lists.sourceforge.net/lists/listinfo/emc-users > > > > > > > > _______________________________________________ > > Emc-users mailing list > > Emc-users@lists.sourceforge.net > > https://lists.sourceforge.net/lists/listinfo/emc-users > > > > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
