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was RV-14, now brownouts/resets at engine crank

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deej(at)deej.net
Guest

Posted: Mon Oct 27, 2014 7:44 am Post subject: was RV-14, now brownouts/resets at engine crank

Yes, potentially if it is wired correctly.



The point I was trying to subtly make was that we don't yet have a Z

figure that incorporates brownout protection (that I am aware of, please

correct me if this is incorrect), and many people keep asking about this.



-Dj

On 10/27/2014 11:29 AM, Ken Ryan wrote:

 	  Quote: 	
		   If you have two batteries wired so that one is for starting, doesn't

 that solve the problem?

 

 On Mon, Oct 27, 2014 at 4:43 AM, user9253 <fransew(at)gmail.com

 <mailto:fransew(at)gmail.com>> wrote:

 

     

     <fransew(at)gmail.com <mailto:fransew(at)gmail.com>>

 

     For many of us (if not most), experimental airplanes are toys. 

     There are other modes of transportation that are less expensive and

     safer.  And some of these aircraft have expensive avionics (more

     toys).  Pilots want their avionics to work without the annoyance of

     rebooting during engine start.  It is not a matter of what is needed

     or what is practical.  We want to play with our toys without being

     annoyed with brownouts.  I would like to see this discussion deal

     with a solution that is inexpensive, lightweight and uncomplicated. 

     Topics could include Eric's deslumpifier (capacitors), backup

     batteries, and DC to DC converters.

     Joe

 

     --------

     Joe Gores


	




-- 

Dj Merrill - N1JOV - VP EAA Chapter 87

Sportsman 2+2 Builder #7118 N421DJ - http://deej.net/sportsman/

Glastar Flyer N866RH - http://deej.net/glastar/

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jluckey(at)pacbell.net
Guest

Posted: Mon Oct 27, 2014 8:12 am Post subject: was RV-14, now brownouts/resets at engine crank

No Z drawing but, as you & I have discussed DJ, brown-out protection is one of the design criteria behind my UPS-style design.

[evangelize mode: On]

Brown-out protection is baked-in to the design.  It is not an afterthought.  And one of its advantages is its simplicity.  It does not require voltage-sensing modules, multiple busses, relays, DC-to-DC converters, mega-capacitors, etc.  (I know you are aware of this but other members may not be).

[evangelize mode: Off]



-Jeff

 

     On Monday, October 27, 2014 8:54 AM, Dj Merrill <deej(at)deej.net> wrote:  

   --> AeroElectric-List message posted by: Dj Merrill <deej(at)deej.net (deej(at)deej.net)>Yes, potentially if it is wired correctly.The point I was trying to subtly make was that we don't yet have a Zfigure that incorporates brownout  protection (that I am aware of, pleasecorrect me if this is incorrect), and many people keep asking about this.-DjOn 10/27/2014 11:29 AM, Ken Ryan wrote:> If you have two batteries wired so that one is for starting, doesn't> that solve the problem?> > On Mon, Oct 27, 2014 at 4:43 AM, user9253 <fransew(at)gmail.com (fransew(at)gmail.com)> <mailto:fransew(at)gmail.com (fransew(at)gmail.com)>> wrote:> >     --> AeroElectric-List message posted by: "user9253">      <fransew(at)gmail.com (fransew(at)gmail.com) <mailto:fransew(at)gmail.com (fransew(at)gmail.com)>>> >     For many of us (if not most), experimental airplanes are toys. >     There are other modes of transportation that are less expensive and>     safer.  And some of these aircraft have expensive avionics (more>     toys).  Pilots want their avionics to work without the annoyance of>     rebooting during engine start.  It is not a matter of what is needed>     or what is practical.  We want to play with our toys without being>      annoyed with brownouts.  I would like to see this discussion deal>     with a solution that is inexpensive, lightweight and uncomplicated. >     Topics could include Eric's deslumpifier (capacitors), backup>     batteries, and DC to DC converters.>     Joe> >     -------->     Joe Gores-- Dj Merrill - N1JOV - VP EAA Chapter 87Sportsman 2+2 Builder #7118 N421DJ - http://deej.net/sportsman/Glastar Flyer N866RH - 

  

 

  

 

 [quote][b]

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deej(at)deej.net
Guest

Posted: Mon Oct 27, 2014 9:15 am Post subject: was RV-14, now brownouts/resets at engine crank

On 10/27/2014 12:12 PM, Jeff Luckey wrote:

 	  Quote: 	
		   No Z drawing but, as you & I have discussed DJ, brown-out protection is

 one of the design criteria behind my UPS-style design.


	


Yes, I know.  I am trying to gently nudge Bob to include a Z drawing

with brownout protection in the Aeroelectric Connection since so many

people are repeatedly asking about it.



My own version incorporating the KISS principle:



http://deej.net/glastar/pics/electrical/Electrical-Rev-3.jpg



Please forgive the rough drawing.  I've been flying with this for a few

months now and am happy with it.



I haven't updated the drawing, but changes that I've made are:



1) The GRT Mini-X only has one power input, so it is wired only to the

Essential buss.



2) The GPS, COM and NAV radios are on the Essential buss.

The Essential Buss diode is the 221-201 sold by B&C:



http://www.bandc.biz/essentialbusdiodew15wattheatsink.aspx



-Dj



-- 

Dj Merrill - N1JOV - VP EAA Chapter 87

Sportsman 2+2 Builder #7118 N421DJ - http://deej.net/sportsman/

Glastar Flyer N866RH - http://deej.net/glastar/

- The Matronics AeroElectric-List Email Forum -

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

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