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Author Topic: Inexpensive brushless DC motor controller  (Read 10314 times)

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Offline Steve JoblinTopic starter

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Inexpensive brushless DC motor controller
« on: July 01, 2008, 10:56:23 AM »
I've been searching for a cost effective brushless DC motor controller that can control a 24V 250W motor via PWM... The only ones I have found seem to be hundreds of dollars... does anyone know where I can find an inexpensive one, or does it make more sense to make it myself?

Offline izua

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Re: Inexpensive brushless DC motor controller
« Reply #1 on: July 01, 2008, 12:02:32 PM »
At that power you shouldn't expect something cheap, you know.
Check out my homepage for in depth tutorials on microcontrollers and electronics.

Offline BANE

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Offline airman00

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Re: Inexpensive brushless DC motor controller
« Reply #3 on: July 01, 2008, 07:27:53 PM »
I just purchused this one yesterday, I'll tell you how it works then it comes in.
http://www.robotshop.ca/home/products/robot-parts/motor-controllers/brushed-motor-controllers/all-brushed-motor-controllers/solarbotics-l298-motor-driver-kit.html
Bane


I never knew they made a board for the L298 , i've always used the chip by itself
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Offline BANE

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Re: Inexpensive brushless DC motor controller
« Reply #4 on: July 01, 2008, 07:45:51 PM »
Quote
I just purchused this one yesterday, I'll tell you how it works then it comes in.
http://www.robotshop.ca/home/products/robot-parts/motor-controllers/brushed-motor-controllers/all-brushed-motor-controllers/solarbotics-l298-motor-driver-kit.html
Bane
I never knew they made a board for the L298 , i've always used the chip by itself

I was about to have one custom made for like $50 before i found this one
Bane

Offline bens

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Re: Inexpensive brushless DC motor controller
« Reply #5 on: July 01, 2008, 07:52:58 PM »
The L298 is not a brushless motor driver.

Offline BANE

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Re: Inexpensive brushless DC motor controller
« Reply #6 on: July 01, 2008, 08:04:27 PM »
Whoops, should have read the post :D.  Your right, does he want a Stepping motor driver or something?  If not, i'm of no help :P

Bane

Offline hgordon

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Re: Inexpensive brushless DC motor controller
« Reply #7 on: July 01, 2008, 09:27:55 PM »
Do you need forward & reverse, or just a single direction ?  A 10A controller shouldn't cost too much, though I'm not 100% certain about the voltage - the brushless controllers with which I'm familiar generally aren't used above 15V, e.g.
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Offline TrickyNekro

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Re: Inexpensive brushless DC motor controller
« Reply #8 on: July 02, 2008, 02:35:51 AM »
Whoops, should have read the post :D.  Your right, does he want a Stepping motor driver or something?  If not, i'm of no help :P

Bane

L298 is not a stepper motor driver either.... It's a dual H-bridge... if you want to connect a stepper interface it with L297 to have stepper control...

But L298 can be used for brushless motors... as far as you have some other goodies on board....
To make a brushless motor controller you need both extended programming and electronics knowledge...

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P.S. I've been inactive for almost a year... Don't give promises but I'll try to complete my tutorials. I'll let you know when..

Cheers!

 


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