Today's Message Index:
----------------------
1. 01:47 AM - Re: pin confirmation (Peter Mather)
2. 03:29 AM - Re: Vans RPM Transducer IE VTACHGEN 12 (John Dalman)
3. 06:09 AM - Re: pin confirmation (Mike Welch)
4. 06:13 AM - Re: pin confirmation (Robert L. Nuckolls, III)
5. 06:49 AM - Re: pin confirmation (Mike Welch)
6. 09:20 AM - Radio Shack 3 row 15 pin d-Sub (rparigoris)
7. 10:49 AM - Re: Vans RPM Transducer IE VTACHGEN 12 ()
8. 11:40 AM - Re: Radio Shack 3 row 15 pin d-Sub (Robert L. Nuckolls, III)
9. 12:01 PM - Re: Vans RPM Transducer IE VTACHGEN 12 (Robert L. Nuckolls, III)
10. 04:18 PM - Re: Radio Shack 3 row 15 pin d-Sub (rparigoris)
11. 04:32 PM - Re: Re: Radio Shack 3 row 15 pin d-Sub (Robert L. Nuckolls, III)
Message 1
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Subject: | Re: pin confirmation |
Correct: see
http://www.irf.com/product-info/datasheets/data/irfp3703.pdf page 8
Remember that the metal tab is also connected to the drain so be careful
how you mount it
----- Original Message -----
From: Mike Welch
To: aeroelectric-list@matronics.com
Sent: Friday, September 24, 2010 2:26 AM
Subject: RE: AeroElectric-List: pin confirmation
>From I could find out, it looks like the pin #3 is the source, pin #2
the gate, and pin #1 the drain.
>But, I am not sure at all.
>Thanks, Mike Welch
Group, From what it appears, from the TO247AC description (the MOSFET's
case),it looks like pin #1 is the gate, pin #2 is the drain, and pin #3
is the source,not the way I described them above.Mike Welch
Message 2
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Subject: | Re: Vans RPM Transducer IE VTACHGEN 12 |
Don't make this harder than it needs to be. Wiring is red +12v. Black to ground
and white is the signal wire. Whatever device you hook it to is where you make
the settings which in the case of the Grand Rapids EIS has the settings in it's
manual. The settings with the EIS are for 4 Cycle or 2 cycle.
Then when you start the engine look at the tach and see if the rpm looks right.
It if doesn't will will probably be off by a factor of two. Check the display
device's manual to see how to correct that.
I have the device in my RV-8 and it only took a minute to set up in the EIS
Sent from my iPad
Message 3
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Subject: | pin confirmation |
Peter=2C
Thanks for the reply. I have looked at that data sheet probably 10 times
=2C but I couldn't
seem to locate where it says what the pin assignment is. But=2C I just saw
at the very bottom=2C
in the right corner of the last page=2C where it lists the pin assignments.
Thanks=2C Mike
From what it appears=2C from the TO247AC description (the MOSFET's case)
=2Cit looks like pin #1 is the gate=2C pin #2 is the drain=2C and pin #3 is
the source=2CMike Welch
Message 4
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Subject: | Re: pin confirmation |
At 06:20 PM 9/23/2010, you wrote:
Bob, Group,
My IRFP3703 MOSFET arrived today. In doing a little research on
it, the best I can tell is
the pins are 1,2 & 3, from left to right, if the MOSFET is facing you
and the pins are down,
and you can read the product information.
If we assume the pins are as described above, can someone confirm
which pin is which?
From I could find out, it looks like the pin #3 is the source, pin
#2 the gate, and pin #1 the drain.
But, I am not sure at all.
Don't need to assume anything. Here's a view I captured from
the data sheet.
Emacs!
Bob . . .
Message 5
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Subject: | pin confirmation |
Thanks Bob!
Message 6
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Subject: | Radio Shack 3 row 15 pin d-Sub |
Hi group
I need to find a connector that will fit into the stick of my Europa. It ends up
the 9 pin connector I was using doesn't work too well since it became obvious
I need 10 pins.
Radio Shack sells a 15 pin what they call D-Sub connector with 3 rows and is the
same size as the 9 pin D-sub that Bob depicts for use as a connector for Ray
Allen pitch servos.
This is a solder pot bent sheet metal connector, but the pins are smaller in size
compared to normal D-sub pins as I am familiar with.
The package has them rated for 5 amps for 1 minute at 600v AC.
The highest current carrying in the connector will be by the pitch servo.
I want to mutilate the connector like Bob depicts for pitch servo so it will fit
in stick, then wrap it with silicone tape to keep it together.
Anyone see anything wrong with using this connector for this purpose?
BTW #26 wire goes to the male connector from the stick switches, and the female
connector is connected to two #22 5 conductor Tefzel cables. The #22 wires fit
the solder pots, but #20 wire may not.
Thx.
Ron Parigoris
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=313615#313615
Message 7
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Subject: | Vans RPM Transducer IE VTACHGEN 12 |
Thanks - yeah, nothing hard about it at all. So, what's the setting? You
can't tell me this is a guessing game? Ok, I've got 10 fingers to go.
The point is this should be published somewhere. Sure, I guessed black
was ground and red was power. Got that part down quickly.
Seems like all the Van's folks use the EIS 4k, I'm using the Dynon 180
which is similar but different.
Glenn E. Long
-----Original Message-----
From: owner-aeroelectric-list-server@matronics.com
[mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of John
Dalman
Sent: Friday, September 24, 2010 6:21 AM
Subject: Re: AeroElectric-List: Vans RPM Transducer IE VTACHGEN 12
<jdalmansr@gmail.com>
Don't make this harder than it needs to be. Wiring is red +12v. Black to
ground and white is the signal wire. Whatever device you hook it to is
where you make the settings which in the case of the Grand Rapids EIS
has the settings in it's manual. The settings with the EIS are for 4
Cycle or 2 cycle.
Then when you start the engine look at the tach and see if the rpm looks
right. It if doesn't will will probably be off by a factor of two. Check
the display device's manual to see how to correct that.
I have the device in my RV-8 and it only took a minute to set up in the
EIS
Sent from my iPad
Message 8
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Subject: | Re: Radio Shack 3 row 15 pin d-Sub |
Radio Shack sells a 15 pin what they call D-Sub connector with 3 rows
and is the same size as the 9 pin D-sub that Bob depicts for use as a
connector for Ray Allen pitch servos.
with.
Yes, this is the "high density" version of the D-sub series connectors.
They are becoming increasingly popular in GA radio designs.
Garmin uses them a lot. The connector you're looking at is
the same one used to bring VGA video out the back of
your computer for the monitor.
The package has them rated for 5 amps for 1 minute at 600v AC.
The highest current carrying in the connector will be by the pitch servo.
I want to mutilate the connector like Bob depicts for pitch servo so
it will fit in stick, then wrap it with silicone tape to keep it together.
Anyone see anything wrong with using this connector for this purpose?
Why does it need to be inside the stick?
Could you bring a pendant cable out of the
stick to some convenient location where you
can use a 25-pin connector with crimped pins?
BTW #26 wire goes to the male connector from the stick switches, and
the female connector is connected to two #22 5 conductor Tefzel
cables. The #22 wires fit the solder pots, but #20 wire may not.
No, they won't. The HD series is limited to 22AWG
or smaller.
Bob . . .
Message 9
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Subject: | Vans RPM Transducer IE VTACHGEN 12 |
Seems like all the Van's folks use the EIS 4k, I'm using the Dynon 180
which is similar but different.
What you're needing is the SCALE FACTOR for the transducer
in pulses per revolution of the engine crankshaft. No doubt
the setup instructions for the Dynon will tell you what
calibration code or dip-switch setting to use for that
particular transducer scale factor.
Unless someone on the list has installed that combination
of hardware items or incidental access to those two values
you're going to have to do some legwork. Does the
transducer have a brand and part number on it?
Bob . . .
Message 10
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Subject: | Re: Radio Shack 3 row 15 pin d-Sub |
Hi Bob
Thx. for the reply.
It seems you are insinuation to not use this 15 pin connector.
What is your reasons to not use this high density 15 pin connector?
"Why does it need to be inside the stick?
Could you bring a pendant cable out of the
stick to some convenient location where you
can use a 25-pin connector with crimped pins?"
By having a connector inside the stick it would make for easy servicing of the
switches "when" they get hurt.
The current routing of wires doesn't easily allow install of a D-sub. If you have
a good reason to not use the high density 15 pin, I could arrange things where
i could remove the stick to service switches.
Ron Parigoris
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=313661#313661
Message 11
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Subject: | Re: Radio Shack 3 row 15 pin d-Sub |
>The current routing of wires doesn't easily allow install of a
>D-sub. If you have a good reason to not use the high density 15 pin,
>I could arrange things where i could remove the stick to service switches.
Give it a try. They're not "evil" . . . just
challenging. I don't fiddle with the solder
version of these connectors . . . like I don't
hand-solder 0805 surface mount parts either.
Bob . . .
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