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nuckolls.bob(at)aeroelect
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 Posted: Mon Jun 23, 2014 5:01 am Post subject: How to decide if a heat sink is required for a Rect Br |
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At 11:07 PM 6/22/2014, you wrote:
| Quote: | I wanted to have one for each device in case the device eat the diode or the diode eat itself ( I might get power for the diodes from the two regular busses as well instead of the battery busses but then that means I must have a relay energized with just battery power
Here’s a clip but I have attached pdf of what I have thus far on the layout….
p;
[img]cid:7.1.0.9.0.20140623075247.01f5dc18(at)aeroelectric.com.1[/img]
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Okay. I'm thinking that your present 'state of the system' is
a bit over-complicated. The purpose of the diode pairs in Z-19
is to improve on reliability of available power to SINGULAR
critical loads. I.e. a single ECU has power available from
two sources which are isolated from each other by the diode
-OR- pair.
In your diagram you show two fuel pumps. There's no value in
providing multiple power sources for both pumps . . .
your stacking redundancies. Recommend you eliminate
the lower two diode pairs. Run one pump from engine bus
through what ever automated controls are available;
run second pump from main bus with its own, dedicated
on/off switch.
This leaves only one diode -OR- pair to boost power
source integrity for the ECU/IGN systems.
Bob . . .
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Eric M. Jones
Joined: 10 Jan 2006
Posts: 565
Location: Massachusetts
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| Posted: Wed Jun 25, 2014 5:50 am Post subject: Re: How to decide if a heat sink is required for a Rec |
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I sell very nice Power_Deuce_Schottkys for the Z-19 half bridges or any other purpose. Very low Vf, modest heat sink included.
| | - The Matronics AeroElectric-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
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| Description: |
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Download |
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Power_Deuce_Schottky_ Manual.pdf |
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_________________
Eric M. Jones
www.PerihelionDesign.com
113 Brentwood Drive
Southbridge, MA 01550
(508) 764-2072
emjones(at)charter.net |
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