Castle - Make A Special Edition Monster

[GriffinRU]

Originally Posted by Pdelcast

The DirectFET is a great package -- but IRF silicon sucks. (Infineon is releasing some DirectFET mosfets soon...)

You will be ahead of the game if you supply IRF with right silicon and get your own fet's. While it would take some time for Infineon to release new package. You know that packaging is the major problem in microfabs. If IRF knows how to package it would be no problem for them to process "your" silicon.

Ok, I will try to come up with software, you convinced me :) Done that in the past, so not a big deal, as you said hardware is relatively simple :)

See, I was hoping you write software, I will do the hardware - the output stage...and then even open source it -> deep inside I think it is the hardware which is complex. Software only become complex, when has tons of bandages and solutions to overcome hardware flaws not limits, limits must be identified at the design stage.

[Pdelcast]

Originally Posted by GriffinRU

You will be ahead of the game if you supply IRF with right silicon and get your own fet's. While it would take some time for Infineon to release new package. You know that packaging is the major problem in microfabs. If IRF knows how to package it would be no problem for them to process "your" silicon.

Ok, I will try to come up with software, you convinced me :) Done that in the past, so not a big deal, as you said hardware is relatively simple :)

See, I was hoping you write software, I will do the hardware - the output stage...and then even open source it -> deep inside I think it is the hardware which is complex. Software only become complex, when has tons of bandages and solutions to overcome hardware flaws not limits, limits must be identified at the design stage.

Well, give it a try. I think you will find it is MUCH more complex than you think... But isn't everything like that? It looks easy from the outside, but when you actually do it, you find it is much more difficult than you first thought. And it's not bandaids either -- just the core software is very complex because of the number of possible states. There aren't any "bandaids" in our software to overcome hardware flaws or limitations -- it is usually easier to mod the hardware than the software....

Why do you think there aren't any "generic" hardware sensorless brushless controller chips? All the hardware chips out there require tuning to a particular motor, and they still don't work well --

And Infineon isn't releasing a new package -- it is the DirectFet package, licensed from IR. Mainly because IR is still behind in the MOSFET arena -- and IR doesn't really have enough fab capacity to handle a lot of new business anyway.

[lutach]

I mentioned it before about Castle having their own MOSFET. Most foundries will be more then glad to do it if you can place orders for a few million MOSFETs. You can also talk to IRF and let them know you will be making your own silicon and want to use their DirectFET casing. I know it might or will be difficult to do, but could be worth it.

Edit: I think Infineon already has their DirectFET, it's acalled CanPAK and they come in a M and S size.

[GriffinRU]

Originally Posted by Pdelcast

Why do you think there aren't any "generic" hardware sensorless brushless controller chips? All the hardware chips out there require tuning to a particular motor, and they still don't work well --

And Infineon isn't releasing a new package -- it is the DirectFet package, licensed from IR. Mainly because IR is still behind in the MOSFET arena -- and IR doesn't really have enough fab capacity to handle a lot of new business anyway.

- No need, RC market not taken seriously.

- Than it is not silicon, but process or both, wierd nice package old technology?!. Even if it is licensed, still require break-in and tuning. It is new technology for the fab.