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user9253
Joined: 28 Mar 2008
Posts: 1927
Location: Riley TWP Michigan
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 Posted: Wed Feb 05, 2014 9:43 am Post subject: Electrical architecture with aux battery |
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Attached is a circuit with a brownout battery (non cranking). It will be kept charged through a diode when the E-Bus alternate feed is off. The aux battery will be connected in parallel with the main battery when both aux battery switch and the E-Bus switch are turned on (expected normal operation after engine start). This circuit is not for my plane. I offer it for discussion and comments.
Joe
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Z-11 Modified 2.pdf |
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nuckolls.bob(at)aeroelect
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| Posted: Wed Feb 05, 2014 12:49 pm Post subject: Electrical architecture with aux battery |
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At 11:43 AM 2/5/2014, you wrote:
| Quote: |
Attached is a circuit with a brownout battery (non cranking). It
will be kept charged through a diode when the E-Bus alternate feed
is off. The aux battery will be connected in parallel with the main
battery when both aux battery switch and the E-Bus switch are turned
on (expected normal operation after engine start). This circuit is
not for my plane. I offer it for discussion and comments.
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There is a way to avoid charging the aux
battery through a diode and eliminate one
switch.
http://tinyurl.com/7ro5yuc
Bob . . .
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user9253
Joined: 28 Mar 2008
Posts: 1927
Location: Riley TWP Michigan
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user9253
Joined: 28 Mar 2008
Posts: 1927
Location: Riley TWP Michigan
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| Posted: Wed Feb 05, 2014 2:44 pm Post subject: Re: Electrical architecture with aux battery |
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When the alternator is off or has failed, the extra switch in my circuit would allow powering the E-bus by only one battery at a time. I do not know if that is an advantage or not. The more complicated a system is, the greater the chance for pilot error.
Joe
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