SMALL - espritmodel.com SMALL - Telemetry SMALL - Radio
Closed Thread
Thread Tools
Old Dec 21, 2002, 09:56 AM
Registered User
norbique's Avatar
United States, HI, Honolulu
Joined Dec 2002
350 Posts
Simple one-way Speed Controller - Updated!

Hello

I present you a simple analog yet powerful (up to 40A constant current) one-way speed controller built up with power MOS FETs. It is quite easy to build, and uses cheap components.

The drawback of this controller is that it has no BEC and you must add extra batteries for the receiver and the servos. Or in case your receiver supports higher input voltages up to 8.4 volts you can use the same batteries that the motor uses.
The positive thing is that the 4N25 optocoupler used in the device separates the Controller from the receiver, this way protecting it from possible malfunctions of the controller, e.g.. If the MOS FETs die.

The input operating voltage of the device goes from 7.2 to 19.2 Volts, from 6 to 16 cells.

As it is too hard to translate the theory the controller works (as the original text is written in Hungarian) I rather present you the schematic diagram, the parts layout, the PCB layout, the parts list and provide you with some useful information.

please follow the link below:
http://geocities.com/norbique/sc/index.htm

Merry Christmas to Everyone!
norbique is offline Find More Posts by norbique
Last edited by norbique; Dec 24, 2002 at 08:22 AM.
Sign up now
to remove ads between posts
Old Dec 22, 2002, 04:24 PM
Baptised Heathen
batman's Avatar
Bundaberg, Qld, Australia
Joined Jun 2002
1,365 Posts
Unfortunately the schematics, pcb layout and parts list won't show, at least not on my computer. Can you post them in another format?
batman is offline Find More Posts by batman
Old Dec 22, 2002, 09:26 PM
"Experienced-Crasher"
Demon-Leather's Avatar
Rex, NC "Extreme Boonies"
Joined Jan 2002
2,355 Posts
Doesn't on Mine Either...

I hope You re-post them,.. I'm VERY interested! I'm presently trying to repair one of mine now. If it looks like I can solder the replacement FET in, I'd love trying to build My own Speed controller! Bob
Demon-Leather is offline Find More Posts by Demon-Leather
Old Dec 22, 2002, 09:43 PM
Registered User
buckeyes1997's Avatar
columbus, oh, usa
Joined Jun 2001
426 Posts
to see them

you can easily see them by right clicking on the spot where the image is supposed to be and then goto properties. copy and paste the link into a new webpage and there ya go.

the pics are at this address simply paste them to new page.


http://www.geocities.com/norbique/pictures/03.jpg

http://www.geocities.com/norbique/pictures/02.jpg

http://www.geocities.com/norbique/pictures/01.gif
buckeyes1997 is offline Find More Posts by buckeyes1997
Old Dec 23, 2002, 01:46 AM
Registered User
norbique's Avatar
United States, HI, Honolulu
Joined Dec 2002
350 Posts
I'll try to solve the problem...

Yes unfortunatelly I have also experienced that the images don't show, but have no idea why.

I was working on a small presentation yesterday , instead of these not-showing pictures and and I'll put it online very soon.

I'll let you know when it's ready, and give you the link.

Thank you for your interest and patience.
norbique is offline Find More Posts by norbique
Old Dec 23, 2002, 01:57 AM
Registered User
norbique's Avatar
United States, HI, Honolulu
Joined Dec 2002
350 Posts
Speed Controller Online

Hello!

Here's the link I promised:

http://geocities.com/norbique/sc/index.htm

Good Luck!
norbique is offline Find More Posts by norbique
Closed Thread


Thread Tools

Similar Threads
Category Thread Thread Starter Forum Replies Last Post
Question HELP! How to connect TWO brushless to ONE speed controller?? vertik Electric Ducted Fan Jet Talk 31 Sep 01, 2004 02:28 PM
Simple Speed Controller Circuit for 12v fuel pump? Grimtooth DIY Electronics 3 Aug 06, 2004 09:16 PM
Question How to run two brushless EDF from one speed controller Charlye Power Systems 14 Jul 21, 2004 05:10 PM
A new way to blow a Model Motors Speed controller? StefV Power Systems 8 Jun 09, 2004 07:27 PM
two brushless motors on one speed controller? Xnaron Power Systems 4 Jun 04, 2003 07:10 AM