Kinetic/Ballistic Systems

[NovakTwo]

C & P from the press release:

540 Amps @ 25°C trans. temp. (brushless),

1,620 Amps @ 25°C trans. temp. (brushed)

Transistor's rating at 25 C junction temp for brushless escs, specification is per each phase of brushless motor (3)

[lutach]

Originally Posted by NovakTwo

C & P from the press release:

540 Amps @ 25°C trans. temp. (brushless),

1,620 Amps @ 25°C trans. temp. (brushed)

Transistor's rating at 25 C junction temp for brushless escs, specification is per each phase of brushless motor (3)

NovakTwo,

This is just absurd information my friend. I posted the continuous AMP rating of the FET at 25°C temp. and I posted the correct way of rating the ESC. The way Novak seems to be rating the ESC is multiplying the amount of FETs by the AMP rating (18 x 30 = 540), but that's wrong. Give me your thoughts on current lipo rating? It's great that you can finally use something other than the one touch set up to fine tune the ESC, but drop the over rating please, a lot of people will respect the brand even more.

If Novak still wants to use such rating, please offer some proof to back it up.

[NovakTwo]

We have never claimed that this current rating applied to the speed control, itself.

This transistor info, (that we have been posting for decades in our BL esc spec chart,) is the transistor rating taken from the technical info sheets provided by the MOSFET manufacturers.

We have never claimed it to be anything other than that. But, I will forward these comments to Bob and Adnan.

[lutach]

Originally Posted by NovakTwo

We have never claimed that this current rating applied to the speed control, itself.

This transistor info, (that we have been posting for decades in our BL esc spec chart,) is the transistor rating taken from the technical info sheets provided by the MOSFET manufacturers.

We have never claimed it to be anything other than that. But, I will forward these comments to Bob and Adnan.

Ok, I have attached 2 datasheets that shows the 2 most powerful PolarPAK MOSFETs that I know of and the Vishay shows a 52A rating at 25°C. So lets try going with 6 FETs per phase, that's only 312A (But divide that by 2 since it's a H bridge config). Now here is the thing, if you go by the datasheet it clearly says the package is only limited to 60A, so lets go with that and multiply it by 6 and still only 360A. Now the silicon is limited to 258A, but that really doesn't mean anything if the package is only limited to 60A. Novak still uses the PolarPAK style MOSFET correct? Please have Mr. Novak and Adnan provide some input on why use such a rating if it doesn't apply to the ESC itself. At the moment, I think the Futaba brushless ESC has the most ridiculous rating of all brushless ESCs.

[NovakTwo]

The historical, ridiculous current ratings were why Adnan decided to only publish the objective transistor ratings and not make any claims about the controller itself.

[lutach]

Originally Posted by NovakTwo

The historical, ridiculous current ratings were why Adnan decided to only publish the objective transistor ratings and not make any claims about the controller itself.

Putting it like that is somewhat more ridiculous if it has nothing to do with the ESC. If you want to put a transistor rating, add the datasheet of it to the website and how the 540A rating came to be. It really doesn't make any sense by putting a number out and not explain it to a simple guy like myself.