Voltage Regulator

[JOddino]

Bob,
What kind of current do these motors draw and what kind of speed control do
you have?  I would think there would be a way to make the speed controller
limit the current which should solve the problem.  You really need to talk
to an expert on electric motors and what causes the failures but I suspect
it is either overheating or overspeeding.  Lower current would help in both
cases.  Have you tried turning down the ATV so you never get full power?  It
might have the result you are looking for.
Jim
----- Original Message ----- 
From: "Bob Miller" <bd4 at inter-linc.net>
To: <discussion at nsrca.org>
Sent: Wednesday, February 11, 2004 6:57 PM
Subject: Re: Voltage Regulator


> Jim,
>
> What I had in mind was using a 3 cell Li-Poly pack with the cheap GWS "D"
> geared motor.  The higher voltage just eats up the motors, but they seem
to
> hold up pretty good on 9.6 volts.
>
> However now you have peaked my interest in using them in my Futaba TX.
> Never considered because of the much higher voltage than 9.6.
>
> What would it cost and how bulky would 9.6 V regulator be for use on the
> foamy flyers everybody is flying today.
>
> Thanks for all of the very useful info you supply us with,
>
> Bob Miller
> ----- Original Message ----- 
> From: "JOddino" <JOddino at socal.rr.com>
> To: <discussion at nsrca.org>
> Sent: Tuesday, February 10, 2004 7:25 PM
> Subject: Re: Voltage Regulator
>
>
> > Hi Bob,
> > No problem.  For transmitter?  Let me know what you need.  It could be
> > pretty cheap.  Lower current and no connectors.
> > From what I hear you can run the full 12.6 V (at full charge) with no
> > problems on Futaba.  Don't know about the rest.
> > Jim
> > ----- Original Message ----- 
> > From: "Bob Miller" <bd4 at inter-linc.net>
> > To: <discussion at nsrca.org>
> > Sent: Tuesday, February 10, 2004 4:33 PM
> > Subject: Re: Voltage Regulator
> >
> >
> > > Jim,
> > >  would you consider making a voltage regulator that would limit 3
> Li-Poly
> > > cells (11.1) to about 9.6 volts?  Or maybe you have and I missed it.
> > >
> > > Bob Miller
> > > ----- Original Message ----- 
> > > From: "JOddino" <JOddino at socal.rr.com>
> > > To: <discussion at nsrca.org>
> > > Sent: Monday, February 09, 2004 6:10 PM
> > > Subject: Re: Voltage Regulator
> > >
> > >
> > > > I hadn't read Troy's response when I suggested the 5.1 volts.  I had
> > heard
> > > > JR servos buzzed a lot on 6 volts.
> > > > I'm curious why you are buying two Li-Ion packs and one regulator.
If
> > you
> > > > are going to carry both packs you ought to use two switch harnesses
> and
> > > two
> > > > regulators for complete redundancy.  If one pack is a spare forget
> what
> > I
> > > > said.
> > > > Jim
> > > >
> > > >
> > > > ----- Original Message ----- 
> > > > From: "D Suding" <junk at velocitus.net>
> > > > To: <discussion at nsrca.org>
> > > > Cc: <troy_newman at msn.com>
> > > > Sent: Monday, February 09, 2004 3:00 PM
> > > > Subject: Re: Voltage Regulator
> > > >
> > > >
> > > > > Thanks, Troy. How does this sound for a Central shopping list:
> > > > >
> > > > > 2 NMP 7.4 Li-Ion packs
> > > > > 1 NMP Charger
> > > > > 5 OS "F" plugs
> > > > > 2 16.5 x 12 W
> > > > > 1 5.7 JACCIO Voltage Regulator.
> > > > >
> > > > > They had it all in stock, shipping this afternoon. I think I'm
set!
> > > > >
> > > > > -D
> > > > >
> > > > > > The JR stuff can handle 6V just fine...I would use that or the
> 5.7V.
> > > The
> > > > > > higher voltage will give better speed and power to the servos.
The
> > > > > > reason to use a reg is that the speed and power is constant from
> > first
> > > > > > flight to last flight. We spend lots of money on stronger and
> faster
> > > > > > servos...the higher voltage is an advantage....Will it make you
a
> US
> > > > > > Team member? NO! Will it give your model better performance and
is
> > it
> > > > > > possible to actually Feel the improvements.....Yes the
difference
> > can
> > > be
> > > > > > felt...and if you don't believe it then try putting a pack
reading
> > > 5.0V
> > > > > > in the model fly your sequence then put one in that reads 6.0V
and
> > fly
> > > > > > the sequence....it will the proof that you need.
> > > > > >
> > > > > > With the 5.7V you have a little bit of margin below when the
> battery
> > > is
> > > > > > suppose to fall off in its voltage and the regulator stops
> > regulating
> > > > > > the voltage.....If the RX battery is at the rated reg voltage
the
> > > > > > regulator is not doing anything and is just passing thru.
> > > > > >
> > > > > > My recommendation is to not fly a 5cell Nicad or Nimh below
> 6V....I
> > > > > > don't fly my Li-ion packs below 7.2V.
> > > > > >
> > > > > > My current model has a 5.7V in it with the NMP Li-ion 2000mah
> > > pack...On
> > > > > > JR servos and RX
> > > > > >
> > > > > >
> > > > > > The Futaba systems don't like the 6V as well as JR so if using
> > Futaba
> > > I
> > > > > > would stick with the 5.1V setup.....
> > > > > >
> > > > > >
> > > > > > I trust Jim Oddino's Regs. He is a smart guy and knows his
stuff.
> > > While
> > > > > > there may be other products out there...The Jaccio regulators
are
> > the
> > > > > > only ones I trust.  I don't know if Jim sells them direct or
> > not...But
> > > > > > Central others carry them. I have been buying these regs since
> like
> > > 98'
> > > > > > or maybe even before. Never had or seen a failure with this
> product.
> > I
> > > > > > know other have complained about regs in general, all the ones I
> > heard
> > > > > > about were from other manufacturers......Your mileage may vary
but
> I
> > > > > > trust Jim's product.
> > > > > >
> > > > > >
> > > > > > Troy
> > > > > >
> > > > > > ----- Original Message -----
> > > > > > From: "D Suding" <junk at velocitus.net>
> > > > > > To: <discussion at nsrca.org>
> > > > > > Sent: Monday, February 09, 2004 2:09 PM
> > > > > > Subject: Voltage Regulator
> > > > > >
> > > > > >
> > > > > >> I'm looking to replace my voltage regulator. I'm using 4
JR8411s
> > and
> > > 1
> > > > > >> JR mini servo. Jaccio has 5.1, 5.7 and 6.0 Volt regulators.
Which
> > one
> > > > > >> should I use?
> > > > > >>
> > > > > >> -Dennis
> > > > > >>
> > > > > >>
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