any one got high power speed control diy plans?????????

[lttakas]

ok well this is very frustrating i cant find the plans for the speed control i want to build and this is the onlyu place i know that some one might help me.Does any one know where i could get some high power speed control plans i am looking for soemthing that can push more tan 90A plz help.

[slipstick]

Basically it's a question of picking a design and just adding FETs (and possibly extra drivers) until it will handle the current. But do you need brushed or brushless ? They're very different.

Steve

[lttakas]

sorry i did not mention but yeah i am looking for brushed

[clipclop]

Check out the 12F675 DIY ESC thread and this link http://www.designsoft.com.au/ahome/rc/PIC-ESC/ESC.html
Stewart

[lttakas]

the link dont work

[Andy W]

Works for me..
Brushed Motor ESC

23 November 2004

This project documents how to build and construct your own Brushed Motor ESC using a Microchip 12F675 PIC and a small number of standard components. Various test systems are also described that allow the investigation of how ESCs function.
...

[lttakas]

ok now i see it hmm but i still need more power

[Andy W]

As already stated, just add FET's..
..a

[TugBoat]

You could try a PM to 'hpi'. He has produced a high power car ESC based on the design mentioned above and may be able to share what he did with you (see this post http://www.rcgroups.com/forums/showpost.php?p=2516607&postcount=32 )

Although, as mentioned by everyone else you just need enough FETs (or enough heatsinks on the FETs).

Tim

[Foxy]

Just remember that the gate capacitance can be an issue when adding lots of FETS, often you will need a better driver than just the pic output.

Adam

[MAVA]

Ittakas,,

Try this one...

http://www.microchip.com/stellent/idcplg?IdcService=SS_GET_PAGE&nodeId=1824&appnote=en012017

Hex Code and program listing

http://ww1.microchip.com/downloads/en/AppNotes/00847.zip

Description

http://ww1.microchip.com/downloads/en/AppNotes/00847a.pdf

Hope that helps..

For more power just add more fets..


Martin