Society of Robots - Robot Forum

General Misc => Misc => Topic started by: Trumpkin on February 23, 2008, 09:05:21 AM

Title: Homemade ESCs
Post by: Trumpkin on February 23, 2008, 09:05:21 AM

I have found a couple of homemade ESCs that look pretty good. I thought I would post them since somebody on this forum probably has a use for them.
http://www.nyblimp.com/articles/ESC.htm
http://www.rc-airplane-advisor.com/electronic-speed-controller.html

Title: Re: Homemade ESCs
Post by: frank26080115 on February 23, 2008, 11:23:31 AM

They are not hard to make from scratch, just program a microcontroller to read pulse lengths and output PWM signals to a H-bridge.
Servos are expensive, it's best not to just waste them.

Title: Re: Homemade ESCs
Post by: TrickyNekro on February 23, 2008, 11:27:21 AM

If you want to get more involved with electronics.... have a look here...

http://images.google.gr/imgres?imgurl=http://www.stefanv.com/quiet/riser100/t-photo9.jpg&imgrefurl=http://www.stefanv.com/rcstuff/riser100.html&h=142&w=450&sz=23&hl=el&start=8&um=1&tbnid=JddZDaBJ5xI6gM:&tbnh=40&tbnw=127&prev=/images%3Fq%3DHomemade%2BESC%26um%3D1%26hl%3Del%26sa%3DN

Homemade ESCs are becoming popular.... But I can't still find an ESC schematics for brushless...


Have something in mind???

Quote from: frank26080115 on February 23, 2008, 11:23:31 AM

They are not hard to make from scratch, just program a microcontroller to read pulse lengths and output PWM signals to a H-bridge.
Servos are expensive, it's best not to just waste them.

I had a broken one and it worked fine!!!
And HS-311 cost almost nothing... And you can still keep the gears... PWM and H-bridge can be not as good as expected...



Cheers

Title: Re: Homemade ESCs
Post by: Trumpkin on February 23, 2008, 12:05:25 PM

I just posted those because i thought other people might want to use them for something.

Title: Re: Homemade ESCs
Post by: javafiend on February 26, 2008, 07:48:39 AM

So what's the difference between an ESC and a DC motor driver?

Title: Re: Homemade ESCs
Post by: ed1380 on February 26, 2008, 03:58:57 PM

an esc is a type of dc motor driver.
an esc takes servo signals and transforms them into dc motors outputs.

motor driver is to animal
as ESC is to dog

Title: Re: Homemade ESCs
Post by: TrickyNekro on February 26, 2008, 04:55:02 PM

Well the main difference is that ESC uses pulses to operate... But Motor controller would use what ever like pulses, data (most commonly), etc

It's like ed mentioned...


Cheers!!!