---------------------------------------------------------- AeroElectric-List Digest Archive --- Total Messages Posted Fri 12/02/11: 9 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 07:03 AM - Re: EFIS brownout capacitor (user9253) 2. 07:48 AM - Re: 1 Wire vs. 3Wwire alternators (jonlaury) 3. 09:17 AM - Re: Re: 1 Wire vs. 3Wwire alternators (cdnch701builder) 4. 09:31 AM - Re: 1 Wire vs. 3Wwire alternators (user9253) 5. 09:42 AM - 1 Wire vs. 3Wwire alternators (ROGER & JEAN CURTIS) 6. 10:04 AM - Re: 1 Wire vs. 3Wwire alternators (cdnch701builder) 7. 10:04 AM - Re: Re: 1 Wire vs. 3Wwire alternators (cdnch701builder) 8. 11:57 AM - Re: Re: EFIS brownout capacitor (Robert L. Nuckolls, III) 9. 12:23 PM - Re: Re: EFIS brownout capacitor (Ken) ________________________________ Message 1 _____________________________________ Time: 07:03:09 AM PST US Subject: AeroElectric-List: Re: EFIS brownout capacitor From: "user9253" Bob, Thanks for the Bus-Booster circuit. I was thinking that an inductor in series with an EFIS would limit the inrush current to a large capacitor. And when the main battery voltage dropped during cranking, that an inductor will try to maintain current flow to the EFIS while the capacitor tries to maintain the voltage. I do not know what size inductor is required. Inductors are heavy compared to capacitors. It is starting to look like a small backup battery is the easiest solution to brownout protection. Joe -------- Joe Gores Read this topic online here: http://forums.matronics.com/viewtopic.php?p=360065#360065 ________________________________ Message 2 _____________________________________ Time: 07:48:05 AM PST US Subject: AeroElectric-List: Re: 1 Wire vs. 3Wwire alternators From: "jonlaury" Ron, Try this http://home.earthlink.net/~timrv6a/alternator.htm Good Luck, John Read this topic online here: http://forums.matronics.com/viewtopic.php?p=360068#360068 ________________________________ Message 3 _____________________________________ Time: 09:17:30 AM PST US From: cdnch701builder Subject: Re: AeroElectric-List: Re: 1 Wire vs. 3Wwire alternators Thanks John... my alternator is a 40A Denzo 3 wire. It's pretty hard to make out from the photos! Ron :--)> :--)> Ron, :--)> Try this :--)> :--)> http://home.earthlink.net/~timrv6a/alternator.htm :--)> :--)> Good Luck, :--)> John :--)> :--)> :--)> Read this topic online here: :--)> :--)> http://forums.matronics.com/viewtopic.php?p=360068#360068 :--)> :--)> :--)> AeroElectric-List Email Forum - :--)> MATRONICS WEB FORUMS - :--)> http://www.matronics.com/contribution ________________________________ Message 4 _____________________________________ Time: 09:31:28 AM PST US Subject: AeroElectric-List: Re: 1 Wire vs. 3Wwire alternators From: "user9253" Here is another link to modifying an alternator: http://www.eaa.org/experimenter/articles/2009-09_howto_alternator.asp Joe -------- Joe Gores Read this topic online here: http://forums.matronics.com/viewtopic.php?p=360075#360075 ________________________________ Message 5 _____________________________________ Time: 09:42:01 AM PST US From: "ROGER & JEAN CURTIS" Subject: AeroElectric-List: 1 Wire vs. 3Wwire alternators >I have a 3 wire internally regulated alternator... that I would like >to convert to external >regulator! > Here is one from the EAA Website http://www.eaa.org/experimenter/articles/2009-09_howto_alternator.asp Roger ________________________________ Message 6 _____________________________________ Time: 10:04:03 AM PST US From: cdnch701builder Subject: Re: AeroElectric-List: 1 Wire vs. 3Wwire alternators Thanks Roger... Ron :--)>:--)> I have a 3 wire internally regulated alternator... that I would like to :--)>:--)> convert to external regulator! :--)>:--)> :--)> Here is one from the EAA Website :--)> :--)> :--)> http://www.eaa.org/experimenter/articles/2009-09_howto_alternator.asp :--)> :--)> Roger ________________________________ Message 7 _____________________________________ Time: 10:04:03 AM PST US From: cdnch701builder Subject: Re: AeroElectric-List: Re: 1 Wire vs. 3Wwire alternators Thanks Joe... That is for a 1 wire, I have a 3 wire... is there much difference? Ron :--)> :--)> Here is another link to modifying an alternator: :--)> http://www.eaa.org/experimenter/articles/2009-09_howto_alternator.asp Joe :--)> :--)> -------- :--)> Joe Gores :--)> :--)> :--)> Read this topic online here: :--)> :--)> http://forums.matronics.com/viewtopic.php?p=360075#360075 :--)> :--)> :--)> AeroElectric-List Email Forum - :--)> MATRONICS WEB FORUMS - :--)> http://www.matronics.com/contribution ________________________________ Message 8 _____________________________________ Time: 11:57:29 AM PST US From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: Re: EFIS brownout capacitor At 08:57 AM 12/2/2011, you wrote: > >Bob, >Thanks for the Bus-Booster circuit. >I was thinking that an inductor in series with an EFIS would limit >the inrush current to a large capacitor. And when the main battery >voltage dropped during cranking, that an inductor will try to >maintain current flow to the EFIS while the capacitor tries to >maintain the voltage. I do not know what size inductor is >required. Inductors are heavy compared to capacitors. It is >starting to look like a small backup battery is the easiest solution >to brownout protection. An inductor would have that effect . . . but on a scale of weight and volume that would be exceedingly unattractive. Yes, batteries are effective energy storage devices when their weight and volume are compared with other technologies. The cost-of-ownership driver for standby batteries is maintenance. What would be really cool is to craft a cell technology that might offer a fraction of the energy storage capability for popular cells but high longevity numbers. Bob . . . ________________________________ Message 9 _____________________________________ Time: 12:23:15 PM PST US From: Ken Subject: Re: AeroElectric-List: Re: EFIS brownout capacitor > The cost-of-ownership driver for standby batteries > is maintenance. What would be really cool is to > craft a cell technology that might offer a > fraction of the energy storage capability > for popular cells but high longevity numbers. > > > Bob . . . > pretty hard to beat a couple of D cell flashlight batteries (and a mini relay) for a couple of seconds of 1 amp 3 volt boost if that is still the situation being discussed. One could even leave the batteries in the flashlight so that it can be used as a --- flashlight. 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