Today's Message Index:
----------------------
1. 01:00 AM - Re: Starting the Engine Reboots the EFIS (Jan de Jong)
2. 01:23 AM - Re: Starting the Engine Reboots the EFIS (Bob Verwey)
3. 02:11 AM - Re: Starting the Engine Reboots the EFIS (Jan de Jong)
4. 01:37 PM - Re: Starting the Engine Reboots the EFIS (Mickey Coggins)
5. 03:31 PM - Re: Starting the Engine Reboots the EFIS (user9253)
6. 05:59 PM - Re: Starting the Engine Reboots the EFIS (Eric Page)
7. 08:21 PM - Re: Shower of Sparks ()
8. 08:53 PM - Re: Shower of Sparks (FLYaDIVE)
Message 1
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Subject: | Re: Starting the Engine Reboots the EFIS |
The 2 attached (pilfered) figures aim to show when the EFIS reboot
occurs in the engine start sequence.
The deep voltage drawdown where the EFIS reboots is resolved as soon as
the starter motor picks up speed.
The "deslumping" only needs to hold up the voltage for a few hundred ms.
Jan de Jong
Message 2
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Subject: | Re: Starting the Engine Reboots the EFIS |
Jan so would a relay then be fast enough to catch the lump? Looking at the
figures it would appear that the big spike is of very short duration.
Best...
Bob Verwey
082 331 2727
On 17 May 2018 at 09:59, Jan de Jong <jan_de_jong@casema.nl> wrote:
> The 2 attached (pilfered) figures aim to show when the EFIS reboot occurs
> in the engine start sequence.
> The deep voltage drawdown where the EFIS reboots is resolved as soon as
> the starter motor picks up speed.
> The "deslumping" only needs to hold up the voltage for a few hundred ms.
>
> Jan de Jong
>
Message 3
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Subject: | Re: Starting the Engine Reboots the EFIS |
It is a race with the relay and solenoid that enables the starter motor.
A small relay will win I would think.
But I would prefer the "deslumpifier" of Eric Jones that Eric Page
elaborated. No moving parts, no active electronics, no batteries.
Jan de Jong
On 5/17/2018 10:21 AM, Bob Verwey wrote:
> Jan so would a relay then be fast enough to catch the lump? Looking at
> the figures it would appear that the big spike is of very short duration.
>
Message 4
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Subject: | Re: Starting the Engine Reboots the EFIS |
Hi Jan, Which eric jones product are you talking about? I've been all
over his site http://www.periheliondesign.com/ and can't find anything. I
just bought 4 a123 18650 lifepo4 batteries and a battery holder I plan to
wire into my EIS and EFIS, but if there is a more elegant solution from
Eric I'm interested.
Mickey Coggins
On Thu, 17 May 2018 at 11:20, Jan de Jong <jan_de_jong@casema.nl> wrote:
> It is a race with the relay and solenoid that enables the starter motor. A
> small relay will win I would think.
> But I would prefer the "deslumpifier" of Eric Jones that Eric Page
> elaborated. No moving parts, no active electronics, no batteries.
>
> Jan de Jong
>
> On 5/17/2018 10:21 AM, Bob Verwey wrote:
>
> Jan so would a relay then be fast enough to catch the lump? Looking at the
> figures it would appear that the big spike is of very short duration.
>
>
Message 5
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Subject: | Re: Starting the Engine Reboots the EFIS |
Even though Eric Jones designed and built a prototype, he does not sell the deslumpifier.
Last I heard, he does not intend to either. Maybe he would if the
demand was big enough. Eric Page built a few that had more capacitance. He
sold them to AeroElectric members at cost for the parts. That was really nice
of him and he did a professional job. He probably has the schematic and parts
list and gerber files that are necessary to order the PC boards. With that
information, a person could order the parts and make their own deslumpifier.
--------
Joe Gores
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=480215#480215
Message 6
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Subject: | Re: Starting the Engine Reboots the EFIS |
I do still have circuit boards available for this project. Ordinarily Id be happy
to assemble another one, but Im just starting to build a house and my free
time is extremely limited. If you review the first couple of posts in this thread...
http://forum.matronics.com/viewtopic.php?p=477147
...youll find all the information about it. A link to a Digi-Key shopping cart
populated with all of the required components is given on the schematic diagram.
A few notes:
- This is a brownout/reboot preventer only; its not a source of emergency power
for avionics. For that, the TCW units or a similar DIY setup are a better choice.
- Youll need a fairly stout soldering iron to successfully solder the large diodes.
A soldering gun would be a good idea if you have one. All other components
are solderable with normal techniques. The diodes are installed with their
ring marking (cathode) facing up.
- Its a good idea to apply some sort of adhesive around the base of the capacitors
and large resistor heatsink to provide mechanical support. I used Shoe Goo
on the boards that I assembled.
- Id recommend using the plastic box as a mounting base for the circuit board and
leave the lid off. This will help to keep things cool while the capacitors
are charging.
Let me know if you want a PCB. Ill sell what I have left at my cost: $0.55 ea.
+ postage and PayPal fee. Ill include the M2.5 screws needed to mount it in
the box.
Eric
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=480216#480216
Message 7
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Subject: | Shower of Sparks |
Thank you very much for the help,
The spark plug test light worked like a charm, thanks for the good idea
Keep well
Mike
From: owner-aeroelectric-list-server@matronics.com [mailto:owner-aeroelectr
ic-list-server@matronics.com] On Behalf Of FLYaDIVE
Sent: May 15, 2018 6:05 PM
Subject: Re: AeroElectric-List: Shower of Sparks
Mike:
To test the Shower Of Sparks -
Disconnect the Starter.
You can do this easily by pulling the control wire to the Starter Relay.
This way you can activate the Shower Of Sparks (SOS) and LISTEN for the BUZ
Z and SAFELY not have to worry about a spinning prop.
You can also remove the spark plug wire from each of the spark plugs.
Do you want to check out the Mag and the Spark Plug wires as well as the SO
S?
If so here is another TRICK!
Go to a automotive store and get the Clear Plastic Spark Plug test light...
It has a Neon bulb inside.
You hook up the test light to the wires.
Re-Connect the control wire on the starter relay and CRANK AWAY.
You will see a longer time duration to the spark than if there was NO SOS.
And, it will be a nice bright light. Again as compared to a standard Impuls
e Mag.
On Tue, May 15, 2018 at 8:32 PM, <mike@vision499.com <mailto:mike@vision499
=2Ecom> > wrote:
ision499.com> >
I have installed a LOM engine with a Shower of Sparks,
1. How long can I safely keep the unit on (buzzing) while testing it
=8BBarry - I never had a over heating problem. I would guess and eas
y Minute.=8B
2. When I turn the motor over and ground the plug to the engine what type o
f spark or sparks should I expect.
=8BBarry - A standard Blueish Spark of Longer Duration.=8B
3. Are there any other tests that I can perform.
=8BBarry - See above.
=8BBest of Luck,=8B
Barry=8B
Thanks
Mike
---
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Message 8
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Subject: | Re: Shower of Sparks |
Mike:
You are quite welcome.
Did you notice how long the spark lasted?
Way longer than just a Mag spark.
Easy test.
Barry
On Thu, May 17, 2018 at 11:19 PM, <mike@vision499.com> wrote:
> Thank you very much for the help,
>
>
> The spark plug test light worked like a charm, thanks for the good idea
>
>
> Keep well
>
>
> Mike
>
>
> *From:* owner-aeroelectric-list-server@matronics.com [mailto:
> owner-aeroelectric-list-server@matronics.com] *On Behalf Of *FLYaDIVE
> *Sent:* May 15, 2018 6:05 PM
> *To:* aeroelectric-list@matronics.com
> *Subject:* Re: AeroElectric-List: Shower of Sparks
>
>
> Mike:
>
>
> To test the Shower Of Sparks -
>
> Disconnect the Starter.
>
> You can do this easily by pulling the control wire to the Starter Relay.
>
> This way you can activate the Shower Of Sparks (SOS) and LISTEN for the
> BUZZ and SAFELY not have to worry about a spinning prop.
>
> You can also remove the spark plug wire from each of the spark plugs.
>
> Do you want to check out the Mag and the Spark Plug wires as well as the
> SOS?
>
> If so here is another TRICK!
>
> Go to a automotive store and get the Clear Plastic Spark Plug test
> light... It has a Neon bulb inside.
>
> You hook up the test light to the wires.
>
> Re-Connect the control wire on the starter relay and CRANK AWAY.
>
> You will see a longer time duration to the spark than if there was NO SO
S.
>
> And, it will be a nice bright light. Again as compared to a standard
> Impulse Mag.
>
>
> On Tue, May 15, 2018 at 8:32 PM, <mike@vision499.com> wrote:
>
>
> I have installed a LOM engine with a Shower of Sparks,
>
> 1. How long can I safely keep the unit on (buzzing) while testing it
>
> =8BBarry - I never had a over heating problem. I would guess and e
asy
> Minute.=8B
>
>
> 2. When I turn the motor over and ground the plug to the engine what type
> of spark or sparks should I expect.
>
> =8BBarry - A standard Blueish Spark of Longer Duration.=8B
>
>
> 3. Are there any other tests that I can perform.
>
> =8BBarry - See above.
>
>
> =8BBest of Luck,=8B
>
>
> Barry=8B
>
>
> Thanks
>
> Mike
>
>
> ---
>
>
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