---------------------------------------------------------- AeroElectric-List Digest Archive --- Total Messages Posted Sun 12/28/14: 4 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 09:03 AM - Re: How does the Ducatti rectifier/regulator work? (user9253) 2. 09:33 AM - Re: Re: How does the Ducatti rectifier/regulator work? (Ken Ryan) 3. 10:01 AM - Re: Re: How does the Ducatti rectifier/regulator work? (Bob McCallum) 4. 12:18 PM - Re: How does the Ducatti rectifier/regulator work? (user9253) ________________________________ Message 1 _____________________________________ Time: 09:03:26 AM PST US Subject: AeroElectric-List: Re: How does the Ducatti rectifier/regulator work? From: "user9253" 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 ________________________________ Message 2 _____________________________________ Time: 09:33:06 AM PST US From: Ken Ryan Subject: Re: AeroElectric-List: Re: 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 wrote: > > 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 > > ________________________________ Message 3 _____________________________________ Time: 10:01:09 AM PST US From: Bob McCallum Subject: RE: AeroElectric-List: Re: 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 > -----Original Message----- > From: owner-aeroelectric-list-server@matronics.com [mailto:owner-aeroelectric-list- > server@matronics.com] On Behalf Of user9253 > Sent: Sunday, December 28, 2014 12:02 PM > To: aeroelectric-list@matronics.com > Subject: AeroElectric-List: Re: How does the Ducatti rectifier/regulator work? > > > 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 > > > > > > > > _- > ===================================================== > ===== > _- > ===================================================== > ===== > _- > ===================================================== > ===== > _- > ===================================================== > ===== > > ________________________________ Message 4 _____________________________________ Time: 12:18:38 PM PST US Subject: AeroElectric-List: Re: How does the Ducatti rectifier/regulator work? From: "user9253" > 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. You are correct Bob McC. Whatever language it is, it is Greek to me. :D Joe -------- Joe Gores Read this topic online here: http://forums.matronics.com/viewtopic.php?p=436367#436367 ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message aeroelectric-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/AeroElectric-List.htm Web Forum Interface To Lists http://forums.matronics.com Matronics List Wiki http://wiki.matronics.com Full Archive Search Engine http://www.matronics.com/search 7-Day List Browse http://www.matronics.com/browse/aeroelectric-list Browse Digests http://www.matronics.com/digest/aeroelectric-list Browse Other Lists http://www.matronics.com/browse Live Online Chat! http://www.matronics.com/chat Archive Downloading http://www.matronics.com/archives Photo Share http://www.matronics.com/photoshare Other Email Lists http://www.matronics.com/emaillists Contributions http://www.matronics.com/contribution ------------------------------------------------------------------------------------- These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.