Re: [PSUBS-MAILIST] Brushless motors

[MerlinSub@t-online.de]

Hmm.. the 1,6 to 2,6 kw high power running a modelhelicopter units also?

Better test before speed on building 2-3 thruster this way and find out that the sub sensors are blind by by pulse noise. The brushless electronic is also pulse moudulation isn't it? 

vbr Carsten

<JimToddPsub@aol.com> schrieb:
> Carsten,
>  
> You brought up another advantage of brushless motors.  They cause much  
> less interference than brushed motors which is one reason they're used  in hard 
> drives and cooling fans in computers.
>  
> Jim
>  
>  
> In a message dated 12/25/2010 3:17:46 A.M. Central Standard Time,  
> MerlinSub@t-online.de writes:
> 
> Why not.  But make shure that brushles motors and sonar/echosounder do not  
> interfer.
> vbr Carsten
> 
> <JimToddPsub@aol.com> schrieb:
> >  Since one of the problems with compensated motors is the tendency of the 
>   
> > brushes to float at higher RPM, this begs the question of why  brushless 
> > motors  are not commonly used instead to eliminate  that issue?  
> Brushless also 
> > tend  to generate less  heat  as well as having other advantages.  Is the 
>  
> >  issue just the higher cost?  Less availability?  Complexity of   
> controllers?
> >  
> > I don't know If Minnkota produces  brushless units or not, but I  can 
> > contact them.  What  about the manufacturers of bow  thrusters?
> > Weigh in with what you  know.
> >  
> > Thanks,
> >  Jim
> 
> 
> 
> 
> ************************************************************************
> ************************************************************************
> ************************************************************************
> The  personal submersibles mailing list complies with the US Federal
> CAN-SPAM  Act of 2003.  Your email address appears in our database
> because  either you, or someone you know, requested you receive messages
> from our  organization.
> 
> If you want to be removed from this mailing list simply  click on the
> link below or send a blank email message to:
> removeme-personal_submersibles@psubs.org
> 
> Removal of your email address  from this mailing list occurs by an
> automated process and should be  complete within five minutes of
> our server receiving your  request.
> 
> PSUBS.ORG
> PO Box 53
> Weare, NH   03281
> 603-529-1100
> ************************************************************************
> ************************************************************************
> ************************************************************************
> 
> 




************************************************************************
************************************************************************
************************************************************************
The personal submersibles mailing list complies with the US Federal
CAN-SPAM Act of 2003.  Your email address appears in our database
because either you, or someone you know, requested you receive messages
from our organization.

If you want to be removed from this mailing list simply click on the
link below or send a blank email message to:
	removeme-personal_submersibles@psubs.org

Removal of your email address from this mailing list occurs by an
automated process and should be complete within five minutes of
our server receiving your request.

PSUBS.ORG
PO Box 53
Weare, NH  03281
603-529-1100
************************************************************************
************************************************************************
************************************************************************