 |
Matronics Email Lists
Web Forum Interface to the Matronics Email Lists
|
| View previous topic :: View next topic |
| Author |
Message |
user9253
Joined: 28 Mar 2008
Posts: 1938
Location: Riley TWP Michigan
|
 Posted: Sat Dec 20, 2014 11:51 am Post subject: How does the Ducatti rectifier/regulator work? |
 |
|
A fellow RV-12 builder asked me this: | Quote: | From the the little that I have read concerning dynamos, they operate at full output all the time as they have no field current controlling them.
Does that mean that if one runs the strobes and landing light all the time, the Ducati reg/rectifier will have less heat to dissipate through the cooling fins, and perhaps stay cooler and last longer? |
I do not know the answer, thus am asking the experts on the AeroElectric List. How does the Rotax 912 rectifier/regulator work? Does it short out the dynamo output to control voltage? Or does it add a series resistance to drop the output voltage? Or what?
Thanks, Joe
| | - 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:
http://www.matronics.com/Navigator?AeroElectric-List |
|
_________________
Joe Gores |
|
| Back to top |
|
 |
kenryan
Joined: 20 Oct 2009
Posts: 429
|
| Posted: Sun Dec 28, 2014 9:33 am Post subject: How does the Ducatti rectifier/regulator work? |
|
|
Joe, this comes from the 914 Installation Manual:
"(A capacitor) is necessary to protect the correct function of regulator and to flatten voltage. The regulator is not designed to store any electrical charge. If for any reason the battery or bus system is disconnected from the regulator while the engine is running (i.e. the master switch is shut off) the capacitor will safely absorb and dissipate the electrical charge produced by the generator. Otherwise the regulator would be damaged."
On Sun, Dec 28, 2014 at 8:02 AM, user9253 <fransew(at)gmail.com (fransew(at)gmail.com)> wrote:
[quote]--> AeroElectric-List message posted by: "user9253" <fransew(at)gmail.com (fransew(at)gmail.com)>
Using Bob's formula and Gilles webpage info
http://www.aero-hesbaye.be/circuit_elec.htm
5 pair of magnets x 6000 RPM / 60 seconds = 500 Hz maximum
BTW, Gilles' webpage is interesting. It is written in German. Google Chrome translated it. But much is lost in translation, making some of it difficult to understand. During the short circuit test, the Rotax dynamo put out 21 amps without overheating.
The 22,000 microfarad capacitor improves the output waveform, but is it required by avionics? (Not that I intend to remove mine.)
Joe
--------
Joe Gores
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=436360#436360
===========
br> fts!)
r> > com" target="_blank">www.aeroelectric.com
w.buildersbooks.com" target="_blank">www.buildersbooks.com
p.com" target="_blank">www.homebuilthelp.com
e.com" target="_blank">www.mypilotstore.com
" target="_blank">www.mrrace.com
target="_blank">http://www.matronics.com/contribution
-Matt Dralle, List Admin.
===========
-
Electric-List" target="_blank">http://www.matronics.com/Navigator?AeroElectric-List
===========
FORUMS -
_blank">http://forums.matronics.com
===========
[b]
| | - 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:
http://www.matronics.com/Navigator?AeroElectric-List |
|
|
|
| Back to top |
|
|
Bob McC
Joined: 09 Jan 2006
Posts: 258
Location: Toronto, ON
|
| Posted: Sun Dec 28, 2014 10:01 am Post subject: How does the Ducatti rectifier/regulator work? |
|
|
Joe;
Don't mean to be contradictory or create any controversy, but Gilles webpage
is in French not German. The dot fr is for France not Germany. If Google was
asked to translate from German that's perhaps how some clarity was lost in
the translation.
Bob McC
[quote] --
| | - 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:
http://www.matronics.com/Navigator?AeroElectric-List |
|
_________________
Bob McC
Falco #908
(just starting) |
|
| Back to top |
|
|
user9253
Joined: 28 Mar 2008
Posts: 1938
Location: Riley TWP Michigan
|
|
| Back to top |
|
|
|
|
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You can download files in this forum
|
Powered by phpBB © 2001, 2005 phpBB Group
|
Get Email Distribution Too!
FAQ
Search
Memberlist
Usergroups
Register
Profile
Log in to check your private messages
Log in
