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Search: Posts Made By: MrMin
Forum: Revo 05.19.2009, 02:19 PM
Replies: 19
Views: 8,194
Posted By MrMin
Looks like the EVX2 got a bug fixed. The...

Looks like the EVX2 got a bug fixed.

The red middle wire from the receiver has a SS36 schottky diode on it. Looks like they are protecting from reverse voltage. I have been bitten by the press...
Forum: Brushless 03.07.2009, 03:46 PM
Replies: 9
Views: 6,252
Posted By MrMin
mr bl-revo. I have the zippy-h.. I did not...

mr bl-revo.

I have the zippy-h.. I did not want to wait.. I think the flightmaxx chemistry is better and certainly 30c is the way to go.

It you got time go for flightmaxx or buy zippy-h's......
Forum: Brushless 03.06.2009, 01:15 PM
Replies: 182
Views: 86,043
Posted By MrMin
At least we have someone who actually looked at...

At least we have someone who actually looked at the datasheets..well done lutach. viva brasil.
Forum: Brushless 03.06.2009, 11:08 AM
Replies: 182
Views: 86,043
Posted By MrMin
Did anyone actually look at the current rating of...

Did anyone actually look at the current rating of each FET?
MMM --> NTMFS4108N = 30A x 36
HW --> 150A NTMFS4833N= 180A x 36

WTF?
Forum: Brushless 03.05.2009, 09:47 AM
Replies: 182
Views: 86,043
Posted By MrMin
How did you get the heatsink off? I tried, but...

How did you get the heatsink off? I tried, but couldn't.
Forum: Castle Creations 03.04.2009, 06:10 PM
Replies: 291
Views: 74,903
Posted By MrMin
I just took another look for our friend...

I just took another look for our friend briang(see other post). I carefully counted only two banks of 6 fets. They were placed in the same place as the 80A, but there were only 12 of them. I could...
Forum: Brushless 03.04.2009, 05:59 PM
Replies: 182
Views: 86,043
Posted By MrMin
Just because I'm such a nice guy I went to look...

Just because I'm such a nice guy I went to look again, took it apart. There are TWO banks of 6 FETS on the other side of the brain board. Thats makes a grand total of 12 as I said before. Did not...
Forum: Brushless 03.04.2009, 05:33 PM
Replies: 182
Views: 86,043
Posted By MrMin
Well to be really honest. I had to use very...

Well to be really honest. I had to use very creative lighting to even see it (I now understand your statement). On the one side of the board there were two rows of 6...maybe there were more directly...
Forum: Castle Creations 03.04.2009, 05:25 PM
Replies: 26
Views: 4,359
Posted By MrMin
Well if you had two connectors then maybe it...

Well if you had two connectors then maybe it would help a *tiny*, *tiny* bit, but redundancy is always better..in case..you flip your batteries out while you are running... ..then..it might well be...
Forum: Castle Creations 03.04.2009, 04:54 PM
Replies: 291
Views: 74,903
Posted By MrMin
If it makes any difference I just took apart my...

If it makes any difference I just took apart my 150A hobbywing and I must say that the mmm seems to be built much better. The screws are barely holding on the fan and it has no firmware upgrades, it...
Forum: Brushless 03.04.2009, 04:42 PM
Replies: 182
Views: 86,043
Posted By MrMin
My 150A has 12 of the following FETS ...

My 150A has 12 of the following FETS
http://www.onsemi.com/pub_link/Collateral/NTMFS4833N.PDF
Forum: Brushless 03.04.2009, 04:41 PM
Replies: 10
Views: 2,153
Posted By MrMin
I just took apart my 150A. It has 12 of the...

I just took apart my 150A.
It has 12 of the following FETS
http://www.onsemi.com/pub_link/Collateral/NTMFS4833N.PDF
Forum: Castle Creations 03.03.2009, 11:24 AM
Replies: 291
Views: 74,903
Posted By MrMin
I agree. I also think zippy-r's are very...

I agree. I also think zippy-r's are very impressive. The mmm is more powerful than the mm, but had some teething problems(which seem to be gone now) and now is pretty reliable. The mmm does not fail...
Forum: Castle Creations 03.03.2009, 10:10 AM
Replies: 291
Views: 74,903
Posted By MrMin
I can understand your statement, but that is...

I can understand your statement, but that is purely speculative basd on your experience. I also run zippy-h's and zippy-r's and think they are great and "believe"(as in religion) that they hold their...
Forum: Castle Creations 03.03.2009, 07:05 AM
Replies: 26
Views: 4,359
Posted By MrMin
Either way the 540watts must be "eaten" when...

Either way the 540watts must be "eaten" when braking..in one second. I dont think 4s or 6s plays a big role in this. It is more to do with the internal resistance of the batteries and that affects...
Forum: Castle Creations 03.03.2009, 03:34 AM
Replies: 26
Views: 4,359
Posted By MrMin
What I mean is 4 power zeners(6 amps constant) in...

What I mean is 4 power zeners(6 amps constant) in parrallel to draw power like a clamping device during the load dump. The TVS cannot dissipate the power.
Forum: Castle Creations 03.02.2009, 02:58 PM
Replies: 26
Views: 4,359
Posted By MrMin
Theme switch - quickly - Zippy batteries. I've...

Theme switch - quickly - Zippy batteries. I've kind of been obsessed about the fact that I've been reading zippies are tricky and not good etc...
I've been doing some basic calc....momentum.. 540...
Forum: Castle Creations 03.02.2009, 02:38 PM
Replies: 291
Views: 74,903
Posted By MrMin
Guys. I understand castle's standpoint here. As...

Guys. I understand castle's standpoint here. As far as I understand, the problem is that the zippies cannot handle the current coming back to the batts(they got to handle 540 joules!! in 1-2...
Forum: Brushless 03.02.2009, 02:13 PM
Replies: 182
Views: 86,043
Posted By MrMin
http://i716.photobucket.com/albums/ww164/mrmin/hob...

http://i716.photobucket.com/albums/ww164/mrmin/hobbywing/P1050932.jpg

I am awaiting my 150A. In the meantime I got this...

http://i716.photobucket.com/albums/ww164/mrmin/hobbywing/P1050934.jpg...
Forum: Castle Creations 02.24.2009, 07:03 PM
Replies: 26
Views: 4,359
Posted By MrMin
and thats why almost nothing else can compare to...

and thats why almost nothing else can compare to it. It's very interesting how much detail went into its design and quality build.
Forum: Castle Creations 02.24.2009, 06:43 PM
Replies: 291
Views: 74,903
Posted By MrMin
Patrick -- quick question -- are you using a...

Patrick -- quick question -- are you using a transorb to clamp the overvoltage??
Forum: Castle Creations 02.24.2009, 06:28 PM
Replies: 291
Views: 74,903
Posted By MrMin
The switching is on the motors, not on the dc...

The switching is on the motors, not on the dc source. If the TVS spikes a big cap it should smooth it out - i suppose a batt is a big cap, so patrick and brian are correct. But I imagine when the...
Forum: Castle Creations 02.24.2009, 05:51 PM
Replies: 291
Views: 74,903
Posted By MrMin
Patrick...I dont think it is fair for you to...

Patrick...I dont think it is fair for you to replace controller after controller if this really is the problem... Brian did a good "no load regen brake test" somewhere recently and made some pretty...
Forum: Castle Creations 02.24.2009, 05:34 PM
Replies: 26
Views: 4,359
Posted By MrMin
Three cheers for Patrick! I'm impressed at...

Three cheers for Patrick!

I'm impressed at the level of detail. You wont find any other esc and bl motor manufacturer giving this level of info and care to their obsessed customers. Simply...
Forum: Castle Creations 02.24.2009, 04:36 PM
Replies: 26
Views: 4,359
Posted By MrMin
Conductivity ?

Conductivity ?
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