yt_link
insta_link
fb_link
twitter_link
Blog#18 - Portable iron


Last tutorial - Homemade cheap drone!
Check here my last tutorial. I hope that you will like it. Keep up you guys!

last tutorial


Brushless motor on a PCB
Help me by sharing this post

Go back ↞ See other blog→

Author: Andrei
09/09/2018

Looking over videos on youTube, we've found a video by Carl Bugeja and think it is very interesting. He presents a tiny PCB that are actually coils for a triple phase brushless motor. A brushless motor will create a magnetic field with the coils and push or drag some permanent magnets, in this case some neodynimum magnets. The change of polarity of the coils is made electronically. The board, as we can see has 6 coils on both sides of the PCB to increase the magnetic field created. In the middle it has space for a small bearing on with the top side of the motor will be placed.

To order your boards, use JLCPCB.com and select your color.




For tests, he measured the resistance of the winding for each coil. We have 3 main windings divided in 6 poles in a star configuration where the ends of all coils are joined togheter. He also made tests for torque and currend draw. Of course, to power this kind of motors, we need an ESC or electronic speed controller that will apply the signals to the triple phase input of the mototor.

I really like the design. It is so small and simple and it could also be improved. And that what Carl Bugeja did for his second version. He placed a ferrite layer belwo the PCB and that increased the torque up to 1.5 grams from 0.9 grams. That is a big improvement. During tests, the temperature of the PCB reached 70 degrees C and with the ferrite layer even a bit more.


He even tried a double layer of magnets to improve the torque but with no success. So adding ferrite layer was the good option to go. His final proposal is to use a delta configuration instead of the star made for this board since that would eliminate the voltage drop on one of the windings so the current would pass trough pnly one coil. But for that we should waid for next version.
And that was the PCB brushless motor. Check his videos for more information. And if you want to make your own PCB, check our sponsor page. Keep up you guys!







Help me by sharing this post

Go back ↞ See other blog→





ADVERTISERS
PCBWay Ad



AFFILATE














Gearbest JGAURORA A3S Fully Metal LCD Display Control DIY 3D Printer
JGAURORA A3S Fully Metal LCD Display Control DIY 3D Printer only $299.99
Gearbest Geeetech E180 Mini 3D Printer with WiFi Module
Geeetech E180 Mini 3D Printer with WiFi Module only $245.99


Gearbest JGAURORA A5X 3D Printer Kit Printing
JGAURORA A5X 3D Printer Kit Printing only $379.99


Gearbest Min DS202 Oscilloscope 113€
Min DS202 Oscilloscope 113€


Gearbest UTD2052CL DIGITAL 2-ch Oscilloscope 275€
UTD2052CL DIGITAL 2-ch Oscilloscope 275€


Gearbest UT139C True RMS Digital Multimeter 29€
UT139C True RMS Digital Multimeter 29€


Gearbest SBK8586 Soldering station Hot Air + Iron 63€
SBK8586 Soldering station Hot Air + Iron 63€


Gearbest BAYANGTOYS X21 Brushless RC Quadcopter
BAYANGTOYS X21 Brushless RC Quadcopter 153€