---------------------------------------------------------- AeroElectric-List Digest Archive --- Total Messages Posted Sun 12/26/10: 2 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 01:17 PM - Voltage Regulator Output (MHerder) 2. 01:19 PM - Re: Voltage Regulator Output (MHerder) ________________________________ Message 1 _____________________________________ Time: 01:17:40 PM PST US Subject: AeroElectric-List: Voltage Regulator Output From: "MHerder" I am using a Jabiru 3300 with a permanent magnet alternator and a kubota voltage regulator. I have some questions since I don't fully understand the PM alternator output. 1) What does the voltage out of the regulator look like on an oscilloscope? Is it really pure DC or does it have some squiggles that avionics may not do so well with? 2) Jabiru suggests tying the yellow wire (senses voltage and tells whether or not the system needs charge or dumps excess to ground) and the Red wire (charges battery) as close to the positive terminal as possible. I would like to charge and sense voltage at the starter contactor for the following reason... If I have an over voltage situation, I will get an alarm from my EIS and I can simply shut off my master switch which would hopefully prevent a problem.... Take a look at my schematic and let me know what you think. 3) What should the voltage be at say 800 RPM, 1500 RPM and 2800 RPM? -------- One Rivet at a Time! Read this topic online here: http://forums.matronics.com/viewtopic.php?p=324581#324581 Attachments: http://forums.matronics.com//files/regulator_wiring_572.pdf ________________________________ Message 2 _____________________________________ Time: 01:19:35 PM PST US Subject: AeroElectric-List: Re: Voltage Regulator Output From: "MHerder" To clarify, my main concern is with damaging avionics since my charging would rin past the avionics bus on the way to the positive side of my battery. I also have concerns with what happens if the red and yellow are disconnected. Where would the voltage go, or would it just be an open circuit? -------- One Rivet at a Time! Read this topic online here: http://forums.matronics.com/viewtopic.php?p=324582#324582 ------------------------------------------------------------------------------------- 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.