Topic: Swedish ASIC miner company kncminer.com - page 1799. (Read 3049501 times)

And did you see that ripple voltage? !!!
Oh my gosh, between 8-20mVp-p at 1 volt!

It's too bad they couldn't use 2 of them at once.
It's too bad they don't have a SYNC function.
It's too bad the SYNC function couldn't be programmed to reduce ripple by interleaving.

If only there were such things.

Oh wait.....
They do have those functions.

Gee I wonder if the KnC guys noticed or it was just coinkydink

It's too bad the pdf you linked didn't include examples of how to deal with the known limitations.
Oh wait.....

All DC/DC converters have limitations.
The efficiency is not bad. It's 80+ and that's DC/DC at 1/12th supply V.

An engineer could design better given enough time and money.

But (there's always a 'but')

Not if you wanted off the shelf _and_ wanted some headroom within the $$$/time budget.
IMneverHO

25% of possible total supply voltage range for the device seems quite flexible to me.
They have V to spare if their thermal budget has any room left.

I almost forgot.
"And the whopper, 1.5ms typical rise in output current from 10% to 90%."

It's too bad they couldn't place caps around the ASIC to compensate.
Oh wait.....

Are you some kind of inductorologist with mad skillz?
I didn't notice your suggestion for a better choice.
Please include delivery time and cost savings if you do venture an opinion.

To me their DC/DC supply fits exactly their 'margin on top of margin' claim.
Thx for the link!

Time will tell

Well, if they took a commitment with Kano it would have been correct to tell him what they plans are in respect of HIS work.

Secondly, I do not think Luke-Jr has been contacted neither.

Pardon my ignorance and laziness to search but are kano and the other guy the only option for developing cgminer drivers? What about bfminer (if I recall the spelling correct)? Can't it be used instead? Not so efficient?

It would have been cool if at least they would have contacted you.

You are mistaking ROI and break-even (like most do in here).

ROI is the profit ("return") you get from an investment. You can have a low or a high ROI, but if you have a ROI you have reached break-even for sure.

Break-even means you recoup all your investment

Most of people in here uses ROI as a synonym for break even, which is nonsense.

 

Yep still heard nothing from them.
So I guess main line cgminer support wont be happening ...

Good news from the Volvo of the ASIC world.
Nice to see them still talking about the next gen too.

No, I haven't. That's why I wrote "proportionally".

+Labcoin +maybe BTCGarden +alydian +...

lol? you maybe forgot about almost million avalon chips, bitfury and other players in this game.)

Call me crazy, but I am in half a mind to place another Saturn+Hosting order...

If they delay, then it means that the expected increase in hashrate will also be delayed proportionally.

Me until Oct 15 max (day 1 Order)

How much are you willing to wait IF they have a delay before requesting a refund? Straight answer please..

The guys are 200% professional, only if things really get ugly they may have issues with refunds. I do not think this will happen though. Maybe only some upset stomachs if they are missing their September deadline by 1-2 weeks. Worst but most possible scenario IMHO..

So far haven't seen anyone denied their refund yet.

600 would be unreal. I mean from 100gh to 150gh per chip? That's a big jump.

I'm thinking maybe only 100-115gh so the end result for a Jupiter could be 400-450gh.

But it's all speculation. However KNC did mention the Jup has potential to be more than 400 and "way less than 1000w".

I think 400gh is just a "best guess" from past yields.

Ironically, I received that same image via PM yesterday from another user.

But that's not why I came here to post. As you all know, I've been busy sticking it up BFL's ass. To date, I've had no reason to check what's happening in Camp KnC. I do have one request though: If at any time KnC refuses to honor refunds, would somebody be so kind as to PM me and let me know?

Later, all.

Bruno Kucinskas

I'd be happy with 175/350 if they shipped Sept. 1

Ha!  Join the club!  Oh wait, you're already in the club.

I have a feeling these knc miners will be more than 200/400 gh, they could be 300/600.  Thoughts?

http://www.lineagepower.com/oem/pdf/MDT040A0X.pdf

Max efficiency at 0.6V out w/ 12V input - 84%
Max efficiency at 1.2V out w/ 12V input - 90%
Max efficiency at 1.8V out w/ 12V input - 92%

And the whopper, 1.5ms typical rise in output current from 10% to 90%.  Not very responsive for such a small converter, esp for switching at 400khz.