Hi! I'm new friend of lrk-torquemax group! I'm Italian (Frosinone), my english is not very well, but the brushless is most interesting and i will build it.. I...
Hi Herbert just need details off your TRIO-design ;) your pix are gone in the yahoo-foto-folder. please give us an URL to your HP THX wurpfel ... Gesendet von...
Hallo Wurpfel, Search for user 'herbert' and keyword 'trio' in the 'power systems' subforum at www.rcgroups.com Met vriendelijke groeten ;-) Ron van Sommeren ...
Neil ... you said .. ... Is there any theory behind this? My first motor has 24 magnets with 2 S-S or N-N magnets butted right up against each other. No...
Hi Brian, There are two possible reasons for space between magnets: A) From memory "magnet coverage should be about 70% to 90% of the circumference, with the...
Thanx for the prompt feedback Neil So what you are saying, the gap between butted magnets is purely from the controller point of view. I have noted this...
Hi, i think by placing he magnets ns-sn-ns-sn instead of nn-ss-nn-ss you get "sharper" flux risetimes, and more trapezoid flux, less sine-shaped. Well, that's...
I agree with Stefan :) but I also think that the benefit of ns-sn-ns-sn magnet positioning might be to optimise the total efficiency of the motor-controller...
... it was too hard to go against life's experience that anything that is easy is no good, and anything that is difficult must be good! ... Good point Neil....
On Wed, 1 Dec 2004 12:14:43 -0000, Neil Stainton <neil@...> ... well spoken ;-) i'm not sure myself, maybe someone can do two identical bells and...
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Goedendag ;-) If you find you are getting too many messages, you can also read them on the homepage at http://www.yahoogroups.com/group/lrk-torquemax/ To...
Hi Steve, If you equipped the design with Si4562DY you can serve about 5-7Amps per Phase. So no additional MOSFET will need to add in this Power Range. I must...
I was just wondering - is there any relationship between the number of winds and the Kv of a BL motor? For instance, if one winds a motor and measures the Kv,...
Hello Product Kv * Number of turns is roughly a constant .. given a stator and a rotor Peter Rother calls it "W constant" Regards Louis ... I was just...
With everything else constant, Kv is linearly related to # turns. More winds = less RPM/V Andrew P On Wed, 1 Dec 2004 17:06:14 +0200, Christo van der Merwe...
Kv * turns = constant So kv1*n1 = kv2*n2 So kv2 = kv1*n1/n2 Where n1 = number of turns for motor 1 n2 = number of turns for motor 2 kv1 = Kv of motor 1 kv2 =...
Louis, Andrew Thanks for the quick responses. So, once one has one Kv value with a motor, it should then be possible to do a spreadsheet which will give the...
Yes, that should work fine. If you're making a spreadsheet, you should probably include a voltage drop term across the winding resistance, Rm, since that is...
Thanks Andrew That may explain why my previous attempt at making such a spreadsheet didn't work out. It seemed that something was amiss, because the...
BTW all these answers assume Kv is defined in the non-SI way, as rotational speed/potential difference i.e. RPM/V in modellers' units. Using this non-SI ...
Hello There is no ambiguity if you indicate the unit For example Kv = 1000 rpm/V or Kv = 0.001 V/rpm or Kv = another figure V/rad/s .... But, of course, Kv...
... Maybe everyone can express their measurements with units at the end (V/rad/s, rpm/V, etc). That should clear up any confusion. And if you're posting some...
Hello I have heared and noticed that it does not work. I know that this question comes up again and again. :-) Of course i have searched here, but did not...
... There is no reason it shouldn't work, especially if the motors are identical. Kontronik controllers are reputed to be better but I don't know if many...
