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Can Rotax be self exciting?

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rparigor(at)SUFFOLK.LIB.N
Guest

Posted: Tue May 22, 2007 10:15 pm Post subject: Can Rotax be self exciting?

Could Z-16 (Rotax 912/914 System) incorporate self excitation feature as

seen in Z25 (note 25) and be self exciting and maintain overvoltage

protection?



Thx.

Ron Parigoris

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nuckollsr(at)cox.net
Guest

Posted: Wed May 23, 2007 4:46 am Post subject: Can Rotax be self exciting?

At 06:14 AM 5/23/2007 +0000, you wrote:



 	  Quote: 	
		  



Could Z-16 (Rotax 912/914 System) incorporate self excitation feature as

seen in Z25 (note 25) and be self exciting and maintain overvoltage

protection?



Thx.

Ron Parigoris


	


   Probably. But this is based on a schematic deduced

   by individuals who disassembled a Ducati regulator.

   The regulator topology is very close to that of the

   regulator sold by B&C so assuming that our presumptions

   are accurate and that the diagram has not changed,

   the answer would be yes.



   Bottom line is that the repeatable experiment rules.

   Try it, see what results you get and then let us know

   one way or another.



   Bob . . .

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Hoffmann.RS(at)T-Online.d
Guest

Posted: Thu May 24, 2007 11:44 am Post subject: Can Rotax be self exciting?

Hello,

  

 I have found two aftermarket products which claim  to run without battery with capacitor only:

  

 http://www.schicke-electronic.de/dgr3.htm switches  near the zero transition and thus produces very low noise. Consider the cooling  fins in comparison to the original Rotax regulator and You may believe it is a  product designed for very long life.

 http://www.silent-hektik.com/Duc_R_Rot.htm run  Rotax injection which is electrical dependent. They say that the engine will  continue running as long as it is above 1000rpm with capacitor  only.

 Hope that helps especially for the 912 / 914  engines

 Bob is right once more (

 Richard

   [quote][b]

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Peter H

Joined: 20 Mar 2007
Posts: 197

Posted: Thu May 24, 2007 2:18 pm Post subject: Can Rotax be self exciting?

The Jabiru PM alternator/ with rectifier regulator also runs when fitted according to Bob’s plan Z note 25 . It is a big advantage for very little cost.  

Peter  

         

  

From: owner-aeroelectric-list-server(at)matronics.com [mailto:owner-aeroelectric-list-server(at)matronics.com] On Behalf Of Hoffmann D- Remscheid

 Sent: Friday, 25 May 2007 5:39 AM

 To: aeroelectric-list(at)matronics.com

 Subject: Re: Can Rotax be self exciting?   

  

     

Hello,  

    

   

    

I have found two aftermarket products which claim to run without battery with capacitor only:  

    

   

    

http://www.schicke-electronic.de/dgr3.htm switches near the zero transition and thus produces very low noise. Consider the cooling fins in comparison to the original Rotax regulator and You may believe it is a product designed for very long life.  

    

http://www.silent-hektik.com/Duc_R_Rot.htm run Rotax injection which is electrical dependent. They say that the engine will continue running as long as it is above 1000rpm with capacitor only.  

    

Hope that helps especially for the 912 / 914 engines  

    

Bob is right once more (  

    

Richard  

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        [quote][b]

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longg(at)pjm.com
Guest

Posted: Fri May 25, 2007 7:16 am Post subject: Can Rotax be self exciting?

Thanks  Richard,

     This is very interesting. We'll if it works on a Ducati...  Any idea if there is anything like this available for a Subaru? Does it matter?  Could this be adapted to any electrically dependent system?

 [quote]   

   --

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