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Forum: Castle Creations 04.17.2019, 12:45 PM
Replies: 2
Views: 1,128
Posted By Pdelcast
Had a hiccup with motor supply, but everything...

Had a hiccup with motor supply, but everything running smoothly again. Will be a little while before everything is back in stock, but we are again at full production.

Thanks!

Patrick
Forum: Castle Creations 10.02.2018, 02:46 PM
Replies: 7
Views: 2,224
Posted By Pdelcast
That's about right, including the wire and...

That's about right, including the wire and bullets.
Forum: Castle Creations 10.01.2018, 03:48 PM
Replies: 7
Views: 2,224
Posted By Pdelcast
No, those are wrong, sorry. I was thinking...

No, those are wrong, sorry.

I was thinking about each individual winding, not bullet to bullet. There are two windings per phase in series (four poles) and two phases in series due to the wye.
...
Forum: Castle Creations 09.28.2018, 07:03 PM
Replies: 7
Views: 2,224
Posted By Pdelcast
1. About 170 microohms 2. About 2.2A 3. ...

1. About 170 microohms
2. About 2.2A
3. About 1200 watts (5 minutes)
Forum: Castle Creations 09.13.2018, 02:31 PM
Replies: 40
Views: 8,075
Posted By Pdelcast
Over 200A for 20 seconds. And yeah, it's a...

Over 200A for 20 seconds.

And yeah, it's a pretty big value, but yes, it's for a very short time. The actual current where damage happens to the MOSFETs due to real damage to the die is over 600A.
Forum: Castle Creations 09.12.2018, 01:22 PM
Replies: 40
Views: 8,075
Posted By Pdelcast
1. 120C is the preset shutdown temp. 2. The...

1. 120C is the preset shutdown temp.
2. The overcurrent is set to around 400A initially, and drops with temperature. But I have to explain that the "logged" current is an average, and the...
Forum: Castle Creations 08.30.2018, 07:38 PM
Replies: 12
Views: 6,620
Posted By Pdelcast
Working on it now. :)

Working on it now. :)
Forum: Castle Creations 08.30.2018, 07:06 PM
Replies: 12
Views: 6,620
Posted By Pdelcast
OK! I'll get some samples made and tested.

OK! I'll get some samples made and tested.
Forum: Castle Creations 08.30.2018, 04:22 PM
Replies: 12
Views: 6,620
Posted By Pdelcast
Those would be 1650kV and 1200kV respectively. ...

Those would be 1650kV and 1200kV respectively. OK?
Forum: Castle Creations 08.21.2018, 07:15 AM
Replies: 9
Views: 2,485
Posted By Pdelcast
I mean that in some circumstances, AFW reduces...

I mean that in some circumstances, AFW reduces the system efficiency vrs passive freewheeling.


I don't know offhand if the MMX will support Cryodrive. Sorry, I'm stuck in Shanghai at the...
Forum: Castle Creations 08.21.2018, 06:26 AM
Replies: 9
Views: 2,485
Posted By Pdelcast
While true, there are also instances when active...

While true, there are also instances when active freewheeling reduces efficiency significantly.

Cryodrive is more sophisticated than simple AFW, and results in efficiency gains across the board.
Forum: Castle Creations 08.21.2018, 06:10 AM
Replies: 9
Views: 2,485
Posted By Pdelcast
I can't comment on any future releases. Sorry!

I can't comment on any future releases. Sorry!
Forum: Castle Creations 08.20.2018, 01:20 AM
Replies: 9
Views: 2,485
Posted By Pdelcast
Not exactly. Cryo-drive is more sophisticated...

Not exactly. Cryo-drive is more sophisticated than synchronous rectification -- it's a true active freewheeling.
Forum: Castle Creations 08.20.2018, 01:19 AM
Replies: 12
Views: 6,620
Posted By Pdelcast
New motors!

Actually, I'm looking for suggestions for new sizes/KVs of motors of release.

Any good suggestions?

Thanks!
Forum: Castle Creations 01.08.2018, 02:44 PM
Replies: 40
Views: 8,075
Posted By Pdelcast
Ceramic bearing may decrease IO somewhat. But I...

Ceramic bearing may decrease IO somewhat. But I wouldn't expect much of a difference.

When you compare our motor with others, you will notice our IO is very low, and efficiency higher.
Forum: Castle Creations 12.14.2017, 02:24 PM
Replies: 40
Views: 8,075
Posted By Pdelcast
Well, no. The heatsink would have to be removed...

Well, no. The heatsink would have to be removed to read the chips, and that would void any warranty.

Sorry. :cry:
Forum: Castle Creations 12.12.2017, 03:57 PM
Replies: 40
Views: 8,075
Posted By Pdelcast
Ceramic bearings can make it both quieter and...

Ceramic bearings can make it both quieter and reduce IO -- but be careful, they damage easy. And the front bearing is especially easy to damage.

I can't comment on what MOSFETs we use. But you...
Forum: Castle Creations 12.11.2017, 06:22 PM
Replies: 40
Views: 8,075
Posted By Pdelcast
Disappointed by what? Those are excellent...

Disappointed by what?

Those are excellent numbers. At 100A, the whole motor is only dissipating 50W.

The difference is simply that there are tabs -- and A & C phase have slightly higher...
Forum: Castle Creations 12.08.2017, 02:44 PM
Replies: 40
Views: 8,075
Posted By Pdelcast
Not surprising you didn't see a difference --...

Not surprising you didn't see a difference -- even in sensored mode, timing above a certain threshold is dominated by the sensorless routine. (which makes sense...)

You are probably close to the...
Forum: Castle Creations 12.08.2017, 02:42 PM
Replies: 40
Views: 8,075
Posted By Pdelcast
I'm surprised to see THAT much difference,...

I'm surprised to see THAT much difference, usually they are a little better balanced.

I'd honestly expect to see slightly lower (A) to (B) and (B) to (C) than (A) to (C).

B phase has a shorter...
Forum: Castle Creations 12.07.2017, 06:56 PM
Replies: 40
Views: 8,075
Posted By Pdelcast
Were you running sensored or sensorless? What...

Were you running sensored or sensorless? What phase advance were you using?

Note that you will see higher IO at higher phase advance.

Thanks!

Patrick
Forum: Castle Creations 10.05.2017, 05:55 PM
Replies: 7
Views: 3,594
Posted By Pdelcast
He needs to PM me here!

He needs to PM me here!
Forum: Castle Creations 06.02.2017, 07:42 PM
Replies: 4
Views: 3,979
Posted By Pdelcast
Hmmmmm... Possible there's an issue with the...

Hmmmmm...

Possible there's an issue with the current measurement on the slow ESC. It may think the current is higher.

Not sure. You can always send it in for a checkup.

Thanks!

Patrick
Forum: Castle Creations 06.02.2017, 07:00 PM
Replies: 4
Views: 3,979
Posted By Pdelcast
I asked my software folks about this, and got...

I asked my software folks about this, and got this reply (below) -- so, it seems it's just a firmware modification. Back down to 1.78, and get the fastest possible setup on the XLX.

From Robert:...
Forum: Castle Creations 05.24.2017, 01:21 PM
Replies: 13
Views: 3,698
Posted By Pdelcast
I would have to disagree with the whole "2-pole...

I would have to disagree with the whole "2-pole is faster" thing.

The two pole motors on the market are three slot stators. That means they need a lot of turns per pole to make significant...
Showing results 1 to 25 of 500

 
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