---------------------------------------------------------- AeroElectric-List Digest Archive --- Total Messages Posted Fri 11/17/17: 4 ---------------------------------------------------------- Today's Message Index: ---------------------- 0. 07:50 AM - What's Your Contribution Used For? (Matt Dralle) 1. 09:29 AM - Schottky diode (Carlos Trigo) 2. 10:08 AM - Re: Schottky diode (user9253) 3. 03:04 PM - Re: Schottky diode (Robert L. Nuckolls, III) ________________________________ Message 0 _____________________________________ Time: 07:50:00 AM PST US From: Matt Dralle Subject: AeroElectric-List: What's Your Contribution Used For? Dear Listers, You might have wondered at some point, "What's my Contribution used for?" Here are just a few examples of what your direct List support enables... It provides for the expensive, commercial-grade Internet connection used on the List. It pays for the regular system hardware and software upgrades enabling the highest performance possible for List services such as the Archive Search Engine, List Browser, and the Web Forums. It pays for the over 23 years of on-line archive data always available for instant search and access. And, it offsets the many hours spent writing, developing, and maintaining the custom applications that power these List Service such as the List Browse, Search Engine, Forums, and Wiki. But most importantly, your List Contribution enables a forum where you and your peers can communicate freely in an environment that is free from moderation, censorship, advertising, commercialism, SPAM, and computer viruses. It is YOUR CONTRIBUTION that directly enables all these aspects of Matronics List services. Please support it today with your List Contribution. Its one of the best investments you can make in your Sport! List Contribution Web Site: http://www.matronics.com/contribution or, you can send a personal check to the following address: Matronics / Matt Dralle 581 Jeannie Way Livermore, CA 94550 Thank you for your support! Matt Dralle Email List Administrator ________________________________ Message 1 _____________________________________ Time: 09:29:24 AM PST US From: Carlos Trigo Subject: AeroElectric-List: Schottky diode Guys In my RV-10 electric system, with 2 batteries and 2 alternators (the Primary ALT being a Plane Power 60A, and the Secondary ALT being a BC410-H, formerly known as SD-20), I have a Main Battery contactor and an Aux Battery contactor. This being, unless I have the Aux Batt contactor On (closed), the Alternators will not charge the Aux battery. Therefore, I am thinking in installing a Schottky diode (I have one from Perihelion Design sitting in my shelf, which is rated at 60A of maximum allowable continuous current, and voltage loss around 0,20V), between the Main battery Buss and the Aux battery + terminal, to allow the alternators who are charging the Main battery, also to charge the Aux battery, even when the Aux BATT contactor is not closed. First question: is there any downside to this solution, or is it even not recommended at all? Second question (or more...): in this solution, I should put a fuse in the wire between the Main Batt buss and the Schottky diode, to protect this wire, right? Which is the A recommended for this fuse, 30 A? And by the way, which wire gauge, AWG#12? Thanks Carlos ________________________________ Message 2 _____________________________________ Time: 10:08:51 AM PST US Subject: AeroElectric-List: Re: Schottky diode From: "user9253" Your plans sound good to me. Wires should be fused at the source end. Since the wire with the diode connects two sources (batteries) together, you might consider fusing it at both ends, especially if it is a long wire or if there is any chance of it shorting to ground. -------- Joe Gores Read this topic online here: http://forums.matronics.com/viewtopic.php?p=475179#475179 ________________________________ Message 3 _____________________________________ Time: 03:04:25 PM PST US From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: Schottky diode At 10:53 AM 11/17/2017, you wrote: > >Guys > >In my RV-10 electric system, with 2 batteries and 2 alternators (the >Primary ALT being a Plane Power 60A, and the Secondary ALT being a >BC410-H, formerly known as SD-20), I have a Main Battery contactor >and an Aux Battery contactor. > >This being, unless I have the Aux Batt contactor On (closed), the >Alternators will not charge the Aux battery. > >Therefore, I am thinking in installing a Schottky diode (I have one >from Perihelion Design sitting in my shelf, which is rated at 60A of >maximum allowable continuous current, and voltage loss around >0,20V), between the Main battery Buss and the Aux battery + >terminal, to allow the alternators who are charging the Main >battery, also to charge the Aux battery, even when the Aux BATT >contactor is not closed. > >First question: is there any downside to this solution, or is it >even not recommended at all? > >Second question (or more...): in this solution, I should put a fuse >in the wire between the Main Batt buss and the Schottky diode, to >protect this wire, right? >Which is the A recommended for this fuse, 30 A? >And by the way, which wire gauge, AWG#12? Why not wire like Z-12 with a z-30 second battery? Are you planning to have battery bus(es)? Which electro-whizzies will run from each bus? Why not fly with both battery contactors closed? 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