Capi's Brushless Motor and ESC 101

[k2NDN]

Wow, I didnt realize that this hobbie could get so complicated. Awsome write-up and while I dont understand it all it is very infomative and answered a few of the questions I had. Thanks for the great info

[DominicD]

Thanks. As much as I would love to do a more detailed and up to date 102 brushless my job is just kicking my butt, and I can only see getting busier.

[47box]

Hi,

""As the motor turns faster and faster the cycle becomes shorte""

The cycle is not the same? Why? ... I mean ... the engine cycle will not be 360°....strange!!

Tks

[DominicD]

Instead of just providing a smart-ass remark please explain how I was wrong.

[47box]

Hei friend,

I did not say you are wrong!!...........I was reading the material (good material) and studying it and I had this doubt.

I´m trying to undertand when you said about the cycle become shorter....you means the time to cycle between the stator poles is fast?

Do not get me wrong friend, because I am new to the hobby

Thanks for the material....I have been studying it....very interesting materials to learn.

[DominicD]

Sorry I am alittle stressed at work and sick as a dog.

Basically the cycle is always 360degrees but the time required to complete those 360 degrees gets shorter and shorter at higher RPM (aka radians/sec). Think of an internal combustion engine, the timing is basically the location of the piston when the spark plug ignites the fuel/air mixture. The faster the piston moves the more often the spark plug has to fire (each time it fires a cycle begins ). So the location of piston when the spark plug lites is always the same regardless of the engine RPM.

[47box]

Thanks mate ........ reading again my question was also in doubt about my placement.
Anyway thank you for the material and understand me well.
With your explanation now everything was clearer.



I´m keep reading the material.......nice!!!!

[DominicD]

I'd love to read this book I bought on electric drives and give a more detailed explanation to this article but since finishing school I am MUCH more interested in learning finance then more engineering.

[dadio]

thank's that was very informative , i have a question if i may , i recently did a brushless conversion on a wltoys v944 as a sort of learning experiment , i used a "bolt 6 amp cool" esc and walkera m5 motor , it works but when binding it goes through a series of beep's , it's almost as if it's waiting for an in put to change the set up but the esc came without any instructions ? i've ordered a usb esc programming stick but it's not arrived yet. the performance at the moment is no better than the stock motor and i was hoping for better , given that this is a fixed pitch heli can i tern of the governor mode off altogether once i have the usb programming stick ?
Dadio

[kriswithak]

Since no one has said well done for over 3 years, Thought I would stick my head in. WELL DONE SIR.

Thanks for sharing your knowledge you and all.

[DominicD]

Thanks, the information is really dated at this point, our modern ESCs are MUCH better than when I wrong this. I haven't done any power electronics since I graduated school and have forgotten what little I already known. At this stage the best guy to update/rewrite this is extrapilot.