AeroElectric-List Digest Archive

Thu 04/10/14


Total Messages Posted: 5



Today's Message Index:
----------------------
 
     1. 12:57 AM - Re: Re: When are diodes needed? (Bob Verwey)
     2. 05:13 AM - Re: Re: When are diodes needed? (William Schertz)
     3. 06:06 AM - Re: Re: When are diodes needed? (Bob McCallum)
     4. 06:19 AM - Re: Simple Diode Tester (Christopher Cee Stone)
     5. 11:07 AM - Re: Re: Z13/8 Main Alternator. (Bill Allen)
 
 
 


Message 1


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    Time: 12:57:04 AM PST US
    Subject: Re: When are diodes needed?
    From: Bob Verwey <bob.verwey@gmail.com>
    Is there a practical application for this? On 09/04/2014, Bob McCallum <robert.mccallum2@sympatico.ca> wrote: > Yes. > > All else being equal if you connect both a 12V and a 6V source in parallel > to a single load without any other intervening components then the 12V > source will supply the load and the 6V source will sit idly by doing > nothing. > > Bob McC > >> Subject: AeroElectric-List: Re: When are diodes needed? >> From: fransew@gmail.com >> Date: Wed, 9 Apr 2014 11:18:58 -0700 >> To: aeroelectric-list@matronics.com >> >> >> It is true that a load will draw current from whichever source has the >> higher voltage. >> Joe >> >> -------- >> Joe Gores >> >> >> >> >> Read this topic online here: >> >> http://forums.matronics.com/viewtopic.php?p=421830#421830 >> >> >> >> >> >> >> > =========== > =========== > =========== > =========== >> >> >> > -- Best... Bob Verwey


    Message 2


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    Time: 05:13:33 AM PST US
    From: "William Schertz" <wschertz@comcast.net>
    Subject: Re: When are diodes needed?
    I believe that the 12V source will try to charge the 6V source, overcharging the 6V battery if a diode is not present. From: Bob McCallum Sent: Wednesday, April 09, 2014 3:37 PM Subject: RE: AeroElectric-List: Re: When are diodes needed? Yes. All else being equal if you connect both a 12V and a 6V source in parallel to a single load without any other intervening components then the 12V source will supply the load and the 6V source will sit idly by doing nothing. Bob McC > Subject: AeroElectric-List: Re: When are diodes needed? > From: fransew@gmail.com > Date: Wed, 9 Apr 2014 11:18:58 -0700 > To: aeroelectric-list@matronics.com > <fransew@gmail.com> > > It is true that a load will draw current from whichever source has the higher voltage. > Joe > > -------- > Joe Gores > > > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=421830#421830 > > > > Archive Search & Download, 7-Day Browse, Chat, FAQ, > --> http://www.matronics.com/Navigator?AeroElectric-List > ======================= > > >


    Message 3


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    Time: 06:06:59 AM PST US
    From: Bob McCallum <robert.mccallum2@sympatico.ca>
    Subject: Re: When are diodes needed?
    Yes absolutely ! (assuming the sources are batteries. If they are diode iso lated power supplies (alternators) the original statement stands) I wasn't suggesting that this was a practical thing to do. Mearly that the higher voltage source will supply the load. Normally we would be talking pa ralleled batteries or a battery and an alternator. In either case the highe r voltage source will supply the load. All else being equal=2C the lower vo ltage source will be idle until the system voltage sags to equal the lower. (even this is an oversimplification=2C but hopefully gets the idea across. The higher of two paralleled differing voltages will be supplying the load s=2C including attempting to raise the lower voltage source. That's the bas is of how a charging system works) Bob McC From: wschertz@comcast.net Subject: Re: AeroElectric-List: Re: When are diodes needed? =0A =0A =0A =0A =0A =0A I believe that the 12V source will try to charge the 6V source=2C =0A overcharging the 6V battery if a diode is not present.=0A =0A =0A =0A =0A From: Bob McCallum =0A Sent: Wednesday=2C April 09=2C 2014 3:37 PM=0A =0A Subject: RE: AeroElectric-List: Re: When are diodes =0A needed?=0A =0A =0A Yes. All else being =0A equal if you connect both a 12V and a 6V source in parallel to a =0A single load without any other intervening components then the 12V source wi ll =0A supply the load and the 6V source will sit idly by doing nothing. Bob =0A McC =0A > Subject: AeroElectric-List: Re: When are diodes needed? > From: =0A fransew@gmail.com > Date: Wed=2C 9 Apr 2014 11:18:58 -0700 > To: =0A aeroelectric-list@matronics.com > > --> AeroElectric-List =0A message posted by: "user9253" <fransew@gmail.com> > > It is =0A true that a load will draw current from whichever source has the higher =0A voltage. > Joe > > -------- > Joe Gores > =0A > > > > Read this topic online here: > =0A > http://forums.matronics.com/viewtopic.php?p=421830#421830 > =0A > > > Archive Search & Download=2C 7-Day Browse=2C Chat=2C =0A FAQ=2C > --> http://www.matronics.com/Navigator?AeroElectric-List > =0A ======================= > > > =0A =0A href="http://www.matronics.com/Navigator?AeroElectric-List">http://www.ma tronics.com/Navigator?AeroElectric-List=0A href="http://forums.matronics.com">http://forums.matronics.com=0A href="http://www.matronics.com/contribution">http://www.matronics.com/c =0A =0A =0A =0A =0A =0A ============0A ============0A ============0A ============0A =0A


    Message 4


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    Time: 06:19:18 AM PST US
    Subject: Re: Simple Diode Tester
    From: Christopher Cee Stone <rv8iator@gmail.com>
    Should work in aircraft as well... Keep earths negative energy from pulling the aircraft to the ground when not intended. do not archive On Mon, Mar 31, 2014 at 5:59 PM, Eric M. Jones <emjones@charter.net> wrote: > emjones@charter.net> > > Simple Diode Tester. > > Here is a simple diode tester you may find useful: > > http://www.energpolarit.com/docs/muscletest_withdirect.pdf > > -------- > Eric M. Jones > www.PerihelionDesign.com > 113 Brentwood Drive > Southbridge, MA 01550 > (508) 764-2072 > emjones(at)charter.net > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=421409#421409 > >


    Message 5


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    Time: 11:07:21 AM PST US
    Subject: Re: Z13/8 Main Alternator.
    From: Bill Allen <billallensworld@gmail.com>
    Yes, I was away Jan/Feb. I'll be back here much more after Easter as Gary will be here then, so May/June would be a good time - call or text me? Bill On 9 April 2014 21:22, MikeDunlop <mdunlop001@aol.com> wrote: > > Bill, > > Nice to hear from you again, I've called by your hangar a few times but > missed you. > > Yes I'm hoping to get things wrapped up soon and start the testing phase. > > I will definitely like to meet Gary again and talk EZ, I picked up some > very useful information last time that made me change the cowling air > intake design and the prop attachment method. > > Regards > > Mike > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=421841#421841 > >




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