Quote:
Originally Posted by NovakTwo
I don't want to repeat myself, but we adopted the soon-to-be-deleted transistor current info years ago when other makers of (probably) brush controllers were making ridiculous claims for their escs current handling.
Expecting all mfgs to adopt esc current rating standards would probably be expecting too much...  Maybe where speed control current ratings are concerned there is no "truth", only "it depends".
We will continue to rate our controllers by the motor wind limit and number of cells; anything exceeding that range could damage the electronics. |
Didn't Novak just follow the same claims? We need data to back up such claims or at least the correct rating. Look at Castle and Tekin, they don't rate like you do. For example, the Tekin R1/RS ESC is rated for 104A when using the Ta 25C 26A rating and 76A when using the Ta 85C 19A rating of the On Semi NTMFS4833N. Now if I use he Tc 25C 191A rating the ESC would be a 764A and the Tc 85C 138A rating it would a 552A, but here is where things get interesting. The NTMFS4833N has a Pulse current of 288A which would give you a 1152A rating. How did I get those numbers you ask? Simple, the R1/RS uses 8 MOSFETs per phase, but I only multiplied the AMP number by 4 due to the H bridge design of a brushless ESC. Now the R1/RS has a total of 24 MOSFETs. If it's possible to get the part number for the MOSFET you use in your Kinetic ESC, we could come up with a better rating for it. Will it be less then the 540A rating yes, but I would respect the true rating more then the 540A out of the blue rating.
BTW, we are still waiting for an explanation on how Novak came up with the 540A rating.