five(5) diy brushless ESC designs

Aug 08, 2003, 06:04 AM	#1
Ron van Sommeren homo ludens modellisticus Join Date: Feb 2001 Location: near Nijmegen, Netherlands Posts: 8,674	seven diy brushless ESC designs For a compilation of brushed diy ESC designs have a look at this thread: http://www.rcgroups.com/forums/showt...hreadid=157193 Please report dead links. Books/theory http://www.amazon.com/exec/obidos/AS...ectronicformod An online course on magnetism/flux, motors and ESC's http://www.consult-g2.com/course.html http://www.innovatia.com/ http://www.innovatia.com/Design_Cent...lectronics.htm Sensored http://homepages.paradise.net.nz/bhabbott/sensored.html Sensorless OSMC project kits: www.robotpower.com Discussion group: www.yahoogroups.com/group/osmc Discussion groups http://groups.yahoo.com/group/osmc/ -> files section http://mailman.evtech.org/mailman/listinfo/evtech Development discussion http://www.rcgroups.com/forums/showthread.php?t=200567 (very active and excellent) http://www.rcgroups.com/forums/showt...1&page=2&pp=10 http://www.rclineforum.de/forum/thre...did=48225&sid= (very good too, 0.45gr brushless controller) http://www.rcgroups.com/forums/showt...hreadid=168476 http://www.rcgroups.com/forums/showt...hreadid=181247 http://www.rcgroups.com/forums/showthread.php?t=200567 This design one we all know, Jo Aichingers family of Speedy-BL controllers. Sadly, Jo passed away in april 2006, I don't know if any one else does the firmware IC programming now, maybe Thomas Radetzki? ??? http://www.speedy-bl.com/ http://www.radetzki.info/html/sbl_micro_e.html http://www.ele.tut.fi/~peni/speedy_s...dy_sprint.html http://www.aerodesign.de/peter/2001/...DY-BL_eng.html 'Mass' production http://users.cybercity.dk/~ccc16084/ -> electronic page -> Brushless Speed Controllers http://plaza29.mbn.or.jp/~sgl02777/ (English/Japanese) http://www.rcgroups.com/forums/showt...threadid=70373 http://gb97816.bei.t-online.de/ (German) -> projekte http://www.2mslbldc.g4g-server.com/ A group design http://www.bldc.de (German/English) Rod Hower's design http://www.rcgroups.com/forums/showt...41#post1838041 http://home.versanet.de/~b-konze/ (English & German) http://www.turbinemuseum.de/Modellba...blmc__uk_.html (English) http://people.freenet.de/khruehlow/ Takao Shimizu's design, source code and schematics http://www.rcgroups.com/forums/showp...&postcount=153 TVE http://www.hanfordsite.com/ French diy sites http://frederic.brame.free.fr/variat...0brushless.htm http://www.silicium628.fr/ -> electronique Ezone diy electronics subforum http://www.rcgroups.com/forums/forumdisplay.php?f=199 'Elektor' magazine design (also published in it's French, German, Dutch and Italian pendants) http://www.elektor-electronics.co.uk...ProductID=2721 -> 'Brushless Motor Controller' For underwater robot http://aquaticus.info/bldc_controller http://groups.yahoo.com/group/lrk-to.../message/10239 http://jetcontrol.de/Bastelstube/d2pack.html micro motor controller http://www.rcgroups.com/forums/showthread.php?t=261316 1.57gr brushless controller http://home.foni.net/~c-schlabitz/Floh/ http://home.versanet.de/%7Eb-konze/blmc_flea/blmc.htm Wiki http://bldc.wikidot.com/ with reverse http://www.rcgroups.com/forums/showt...14#post8056614 Demo's and tutorials on www.freescale.com, e.g. http://www.freescale.com/files/micro...orbldctut.html high voltage http://rmmx.gmxhome.de/bldchv/english/start.html Brushless controller/timer for Control Line: http://www.pek.nu/pekproj/proj/el/sc/ Discussion: http://www.svensktmodellflyg.se/foru...entMainTopic=2 Vriendelijke groeten Ron Last edited by Ron van Sommeren; Oct 14, 2009 at 11:23 AM.

Aug 08, 2003, 09:52 AM	#2
Markz Regiztered Uzer Join Date: Feb 2001 Location: Quebec, Canada Posts: 441	Thanks Ron I've always been contemplating a challenge like this. This is a great compilation of designs - too bad I can't read german, but I'll see what the web translators can come up with Marc

Aug 08, 2003, 11:32 AM	#3
KreAture Impossible? Hah! Join Date: Jun 2003 Location: Oslo Fornebu, Norway Posts: 2,820	Mine will be very much like number 4 I think.

Sep 18, 2003, 10:37 AM	#4
Mark Sanders Registered User Join Date: Jun 2001 Location: Windsor, UK Posts: 298	Thanks Ron - keep up the good work / mark

Oct 20, 2003, 05:45 AM	#5
Mr DIY Registered User Join Date: Aug 2003 Location: South Africa Posts: 587	Continuing on with Brushless designs, I am close to finalizing mine and have progressed to my second PCB version that now incorporates the sensor circuitry. I have managed to get a HD motor running without a problem, but when I attempted my Mega motor, I promptly burned out the high side FETs. There seems to be limited information relating to the method of drive and I do not have a commercial one at my disposal that would answer all my questions. Now this may sound like a very stupid question to those that know, but what I need to know is … when starting the motor, a PWM signal is applied. But once up and running, then what? Is the PWM discarded and short pulses triggered at the start of each new phase? In other words, fire the “controlled” pulse, which accelerates the motor, and then wait for “crossing” feedback whilst motor decelerates. The controlled pulse width then determines the final speed. Is this the way it is done, or is the PWM signal being used all the time? I am finding that an extended duration PWM signal is the cause of my FETs going bang. They are being driven via a FET driver IC. My controller at present is an overkill as far as the digital stuff goes. Wanted to play with a logic device, so added it in order to make controller more flexible and allow very high speeds. Will post pic as soon as I get a motor running.

Jan 06, 2004, 09:05 PM	#6
Takao Shimizu Registered User Join Date: Nov 2002 Location: Tokyo, Japan Posts: 678	Too slow detection and starting Mr DIY, >wait for “crossing” feedback You must wait the feed back signal for next switch to start and run, for sure. So far, My new program generates "preset duty" drive phase signal applying sequently until next 1/2Vcc cross signal detection, under no information of magnet rotor position. http://www.rcgroups.com/forums/showt...89#post1676789 Also, "Too slow condition" as over load can be detected while running by timer. This condition is also caused at starting.Then,my program has no-output timer as starting duty control when the system does not start. FET works CD-ROM RC motor, because of the coil winding wire is not so thick as low resistance compared to RDS(On):On Resistance between Drain and Source. FET does not heat up at all on my winding. The problem is "preset duty" setting value to protect FETs when the motor coil is wound with very a few turns and with very low registance thick wire. You may sense the starting rush current by RDS(On) on FET or one of current sense hall device on power line by A/D for best solution. Last edited by Takao Shimizu; Sep 12, 2004 at 10:03 AM.

Jan 06, 2004, 09:34 PM

FlyByMike

Registered User

Join Date: Jan 2002

Location: Pittsburgh, PA

Posts: 1,283

Quote:

Originally posted by Markz
Thanks Ron

I've always been contemplating a challenge like this. This is a great compilation of designs - too bad I can't read german, but I'll see what the web translators can come up with

Marc

This site will translate words, phrases, and even URLs: http://babel.altavista.com/translate.dyn
I use it a lot

-Mike

Jan 07, 2004, 05:32 PM	#8
Ron van Sommeren homo ludens modellisticus Join Date: Feb 2001 Location: near Nijmegen, Netherlands Posts: 8,674	Or http://www.google.com/language_tools?hl=en

Jan 07, 2004, 06:34 PM	#9
FlyByMike Registered User Join Date: Jan 2002 Location: Pittsburgh, PA Posts: 1,283	Thanks Ron, I've bookmarked that one too. -Mike

Jan 08, 2004, 10:20 AM	#10
mr_wood Registered User Join Date: Sep 2001 Location: London Heathrow, Great Britain (UK) Posts: 314	Sensored Design Hi, I am looking for a sensored design. I want to use the hall sensors on the CD board I have. Surely this can't be too difficult ?? Anyone have any ideas ? Thanks Tim

Jan 08, 2004, 08:05 PM	#11
FlyByMike Registered User Join Date: Jan 2002 Location: Pittsburgh, PA Posts: 1,283	Sensorless is simpler than sensor type, parts-wise that is -Mike edit: Posted after Takao's post to clarify it. Which he deleted and re-posted. Maybe I should delete this as it is confusing. BTW, controller software is much easier w/ a sensored motor. Last edited by FlyByMike; Jan 08, 2004 at 08:14 PM.

Jan 08, 2004, 08:07 PM	#12
Takao Shimizu Registered User Join Date: Nov 2002 Location: Tokyo, Japan Posts: 678	Re: Sensored Design Tim, Sensored type is useful to get the starting torque for RC car application. Sensore less circuit is simpler than sensored type. Takao Attached Thumbnails 44.0 KB · Views: 22279

Jan 09, 2004, 04:20 AM	#13
mr_wood Registered User Join Date: Sep 2001 Location: London Heathrow, Great Britain (UK) Posts: 314	this is very complex, I was hoping it would be easy like the circuit for the 2-phase motor in http://www.rcmicroflight.com/library/motor1.asp . Incidently would a 2 phase motor be powerful enough for RC - the controller is certainly simple ! Thanks Tim

Jan 09, 2004, 04:30 AM	#14
Takao Shimizu Registered User Join Date: Nov 2002 Location: Tokyo, Japan Posts: 678	Tim, This is my simplest flying single phase motor. http://www.rcgroups.com/forums/showt...518#post594518 Takao

Jan 15, 2004, 07:42 PM	#15
Ron van Sommeren homo ludens modellisticus Join Date: Feb 2001 Location: near Nijmegen, Netherlands Posts: 8,674	Added development discussions: http://www.rcgroups.com/forums/showt...hreadid=168476 http://www.rcgroups.com/forums/showt...hreadid=181247

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