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Eric M. Jones
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jluckey(at)pacbell.net
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 Posted: Thu Apr 09, 2015 7:51 am Post subject: V-Charger |
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Pretty "boffo" ...
Looks as thought it was just released in March. Any idea how much $?
-Jeff
On Thursday, April 9, 2015 8:28 AM, Eric M. Jones <emjones(at)charter.net> wrote:
--> AeroElectric-List message posted by: "Eric M. Jones" <emjones(at)charter.net (emjones(at)charter.net)>
Carling Technologies sells a boffo charger for USB powered devices. 12/24V input. Worth a look.
https://www.carlingtech.com/controls-v-charger?abm_pos=2&abm_adtype=boombox_ad&abm_type=image&abm_adcategory=paid
--------
Eric M. Jones
www.PerihelionDesign.com
113 Brentwood Drive
Southbridge, MA 01550
(508) 764-2072
emjones(at)charter.net
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=440499#440499
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[quote][b]
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rv6a(at)rogers.com
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| Posted: Thu Apr 09, 2015 10:11 am Post subject: V-Charger |
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http://www.mouser.com/ProductDetail/Carling-Technologies/V-USB-24-G11-1BB1/?qs=%2fha2pyFaduiuWIyF7eXWC5mA2RXT2%2fejv7WHWaq9hVmcvfrfzSKbdQ%3d%3d
On Apr 9, 2015, at 11:50 AM, Jeff Luckey <jluckey(at)pacbell.net (jluckey(at)pacbell.net)> wrote:
[quote]Pretty "boffo" ...
Looks as thought it was just released in March. Any idea how much $?
-Jeff
On Thursday, April 9, 2015 8:28 AM, Eric M. Jones <emjones(at)charter.net (emjones(at)charter.net)> wrote:
--> AeroElectric-List message posted by: "Eric M. Jones" <emjones(at)charter.net (emjones(at)charter.net)>
Carling Technologies sells a boffo charger for USB powered devices. 12/24V input. Worth a look.
https://www.carlingtech.com/controls-v-charger?abm_pos=2&abm_adtype=boombox_ad&abm_type=image&abm_adcategory=paid
--------
Eric M. Jones
www.PerihelionDesign.com
113 Brentwood Drive
Southbridge, MA 01550
(508) 764-2072
emjones(at)charter.net
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=440499#440499
http://www.matronics.com/Navigator?AeroElectric-List<; http://forums.sp; - List Contribution Web Site -
_; &nb://www.matronics.com/contribution" target="_blank">http://www.matronics.c===================
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"3D"courier" new,courier"="">[url=3D"http://www.matronics.com/Navigator?AeroElectric-List"]http://www.matronics.com/Navigator?AeroElectric-List[/url]
D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
//forums.matronics.com
D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
ot;">http://www.matronics.com/contribution
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jan_de_jong(at)casema.nl
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| Posted: Fri Apr 10, 2015 1:16 pm Post subject: V-Charger |
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I have found a cheap lighter socket step down converter generate noise
on radio reception in a DA40 (Garmin 430 I believe).
Via power supply or radiated unknown.
I would be interested in experience with the V-charger. The data sheet
does not say anything about antagonistic qualities.
Jan de Jong
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rv8iator(at)gmail.com
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| Posted: Fri Apr 10, 2015 5:21 pm Post subject: V-Charger |
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Very compact packaging and looks rugged... but 50 bucks (jluckey(at)pacbell.net (jluckey(at)pacbell.net)> wrote:[quote]Pretty "boffo" ...
Looks as thought it was just released in March. Any idea how much $?
-Jeff
On Thursday, April 9, 2015 8:28 AM, Eric M. Jones <emjones(at)charter.net (emjones(at)charter.net)> wrote:
--> AeroElectric-List message posted by: "Eric M. Jones" <emjones(at)charter.net (emjones(at)charter.net)>
Carling Technologies sells a boffo charger for USB powered devices. 12/24V input. Worth a look.
https://www.carlingtech.com/controls-v-charger?abm_pos=2&abm_adtype=boombox_ad&abm_type=image&abm_adcategory=paid
--------
Eric M. Jones
www.PerihelionDesign.com
113 Brentwood Drive
Southbridge, MA 01550
[url=tel:%28508%29%20764-2072](508) 764-2072[/url]
emjones(at)charter.net
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=440499#440499
http://www.matronics.com/Navigator?AeroElectric-List<; http://forums.sp; - List Contribution Web Site -
_; &nb://www.matronics.com/contribution" target="_blank">http://www.matronics.c===================
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ist" target="_blank">http://www.matronics.com/Navigator?AeroElectric-List
tp://forums.matronics.com
_blank">http://www.matronics.com/contribution
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millner(at)me.com
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Eric M. Jones
Joined: 10 Jan 2006
Posts: 565
Location: Massachusetts
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nuckolls.bob(at)aeroelect
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| Posted: Sat Apr 11, 2015 8:26 am Post subject: V-Charger |
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Virtually ALL 12 to USB charger products are
crafted with some version of the switch-mode,
buck converter design . . .
[img]cid:.0[/img]
In recent years, the capability and sophistication
of various step-down chargers has mushroomed. You see
bins of cigar cigar lighter adapters at the
cash register of convenience stores . . . priced
from 4 to 10 dollars each.
[img]http://i.ebayimg.com/00/s/NjAwWDYwMA==/z/lX0AAOSwNSxVJbNi/.JPG[/img]
You can buy guts-only boards for this and similar
products for as little as 50 cents per working item
on ebay. Here's a 4-port, 5 Amp adjustable model you can
buy for less than $5 mailed to your door.
[img]cid:.1[/img]
The the technology to make these capable critters for
so little money is gargantuan automated production
volumes and minimizing parts count. These convertera
all operated at 100 KHz up . . . some as high as one
Mhz. Problem is that the waveforms are anything but
sine-wave and exceedingly rich in harmonics. They
are miniature rogue transmitters. The minimalist
parts count philosophy encourages designers to
discount if not totally ignore any potential for
interference to other systems. FCC Part 15 rules
allow extra-ordinarily antagonistic emissions with
the admonition, "Users must discontinue use of
this device if it interferes with other products
or systems".
The EASY work around is to craft a 14 to 5 volt
step down regulator with linear components. Virtually
noise free but the have to toss off a lot of heat.
They are limited to 33% efficiency by design.
Further, another feature in the USB charging
cable protocols that can produce unexpected
behaviors. For example, I used to have a cell phone
that refused to accept power from an "unauthorized
charger" . . . Turns out that SOME appliances
expect to see SOME kinds of 'communication' from
the charger in the form of treatment of the normally
dormant data lines (The OTHER two wires in the
usb cable).
So even if you build yourself a noise-free linear,
you may find that the target appliance rejects
power from your handy-work based on a lack of
proper hand-shake from the charger. I've not had
time to dig into this deeply . . . perhaps someone
on the List can enlighten us further.
Given the limited, captive market that is aviation,
commercial off the shelf USB charger products
friendly to the cockpit will be pricey . . . even
if the additional parts required are only a few
cents cost.
We had a gentleman here on the List perhaps
a year ago who was striving to bring such a product
to market. I helped him with the pennies-per-device
additions necessary to do the filtering. The design
was apparently satisfactory but I've not heard from
him since as to his experience in the marketplace.
This isn't a complex problem. The simple-ideas and
their application supporting a successful design are
well known. The problem is that folks who buy these
devices at the convenience store cash register
out-number us by about 100:1!
Even the so-called 'noise free' chargers advertised
only seem to speak to ripple voltage on the 5v output
while ignoring or being oblivious to the potential
for radio frequency emissions. Here's one article
going to great lengths to talk about quality, safety
and noise on output line with the word 'radio' appearing
only once.
http://tinyurl.com/bz4nv3y
It's a wild and wooly USB world out there but not
really difficult to thrive in.
Bob . . .
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user9253
Joined: 28 Mar 2008
Posts: 1938
Location: Riley TWP Michigan
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| Posted: Sat Apr 11, 2015 11:08 am Post subject: Re: V-Charger |
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| Quote: | you may find that the target appliance rejects
power from your handy-work based on a lack of
proper hand-shake from the charger. I've not had
time to dig into this deeply . . . perhaps someone
on the List can enlighten us further. |
http://tinyurl.com/Eric-Page-s-Post
Message 7
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Joe Gores |
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edpav8r(at)yahoo.com
Guest
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| Posted: Sat Apr 11, 2015 8:20 pm Post subject: V-Charger |
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handainc(at)madisoncounty
Guest
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| Posted: Mon Apr 13, 2015 7:34 am Post subject: V-Charger |
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Bob..... I am beginning work on a new panel for a Piper Pacer I am building. Primary navigation will be by a dock mounted iPad and everything will be hard wired. After flying for 20+ years with wires running all over the cockpit, I am determined that there will be none of that in the new bird. However I do need recharging capability for electronic devices and a reliable panel mount USB that does not emit interference. What is the solution, as the UK source provided here does not have stock, and the unit IS pricy.
M. Haught
Sent from my iPad
On Apr 11, 2015, at 11:23 AM, Robert L. Nuckolls, III <nuckolls.bob(at)aeroelectric.com (nuckolls.bob(at)aeroelectric.com)> wrote:
[quote]
Virtually ALL 12 to USB charger products are
crafted with some version of the switch-mode,
buck converter design . . .
<22018140.jpg>
In recent years, the capability and sophistication
of various step-down chargers has mushroomed. You see
bins of cigar cigar lighter adapters at the
cash register of convenience stores . . . priced
from 4 to 10 dollars each.
[img]http://i.ebayimg.com/00/s/NjAwWDYwMA==/z/lX0AAOSwNSxVJbNi/.JPG[/img]
You can buy guts-only boards for this and similar
products for as little as 50 cents per working item
on ebay. Here's a 4-port, 5 Amp adjustable model you can
buy for less than $5 mailed to your door.
<2201817f.jpg>
The the technology to make these capable critters for
so little money is gargantuan automated production
volumes and minimizing parts count. These convertera
all operated at 100 KHz up . . . some as high as one
Mhz. Problem is that the waveforms are anything but
sine-wave and exceedingly rich in harmonics. They
are miniature rogue transmitters. The minimalist
parts count philosophy encourages designers to
discount if not totally ignore any potential for
interference to other systems. FCC Part 15 rules
allow extra-ordinarily antagonistic emissions with
the admonition, "Users must discontinue use of
this device if it interferes with other products
or systems".
The EASY work around is to craft a 14 to 5 volt
step down regulator with linear components. Virtually
noise free but the have to toss off a lot of heat.
They are limited to 33% efficiency by design.
Further, another feature in the USB charging
cable protocols that can produce unexpected
behaviors. For example, I used to have a cell phone
that refused to accept power from an "unauthorized
charger" . . . Turns out that SOME appliances
expect to see SOME kinds of 'communication' from
the charger in the form of treatment of the normally
dormant data lines (The OTHER two wires in the
usb cable).
So even if you build yourself a noise-free linear,
you may find that the target appliance rejects
power from your handy-work based on a lack of
proper hand-shake from the charger. I've not had
time to dig into this deeply . . . perhaps someone
on the List can enlighten us further.
Given the limited, captive market that is aviation,
commercial off the shelf USB charger products
friendly to the cockpit will be pricey . . . even
if the additional parts required are only a few
cents cost.
We had a gentleman here on the List perhaps
a year ago who was striving to bring such a product
to market. I helped him with the pennies-per-device
additions necessary to do the filtering. The design
was apparently satisfactory but I've not heard from
him since as to his experience in the marketplace.
This isn't a complex problem. The simple-ideas and
their application supporting a successful design are
well known. The problem is that folks who buy these
devices at the convenience store cash register
out-number us by about 100:1!
Even the so-called 'noise free' chargers advertised
only seem to speak to ripple voltage on the 5v output
while ignoring or being oblivious to the potential
for radio frequency emissions. Here's one article
going to great lengths to talk about quality, safety
and noise on output line with the word 'radio' appearing
only once.
http://tinyurl.com/bz4nv3y
It's a wild and wooly USB world out there but not
really difficult to thrive in.
Bob . . .
[b]
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ngeorge(at)continentalmot
Guest
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| Posted: Mon Apr 13, 2015 9:29 am Post subject: V-Charger |
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Marvin –
We use one of these in our Cherokee, have not noticed any interference …
http://Commitlift.com
Neal
From: On Behalf Of H. Marvin Haught Jr <![if !supportLineBreakNewLine]> <![endif]>
Bob..... I am beginning work on a new panel for a Piper Pacer I am building. Primary navigation will be by a dock mounted iPad and everything will be hard wired. After flying for 20+ years with wires running all over the cockpit, I am determined that there will be none of that in the new bird. However I do need recharging capability for electronic devices and a reliable panel mount USB that does not emit interference. What is the solution, as the UK source provided here does not have stock, and the unit IS pricy.
M. Haught
<![if !supportLineBreakNewLine]> <![endif]>
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user9253
Joined: 28 Mar 2008
Posts: 1938
Location: Riley TWP Michigan
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| Posted: Mon Apr 13, 2015 9:36 am Post subject: Re: V-Charger |
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12 to 5 volt converters at Jameco.com
SD-15A-5 $13
SKM15A-05 $25
SKA20A-05 $27
SD-25A-5 $20
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Joe Gores |
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jan_de_jong(at)casema.nl
Guest
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| Posted: Mon Apr 13, 2015 2:10 pm Post subject: V-Charger |
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Thank you, Joe.
Look good, especially the high efficiency SK* items, but they have a
minimum output current of several hundred mA.
I would like to know what happens to the output voltage when the output
current drops below the minimums in the datasheets (device being charged
could be off).
Jan de Jong
On 4/13/2015 7:36 PM, user9253 wrote:
| Quote: |
12 to 5 volt converters at Jameco.com
SD-15A-5 $13
SKM15A-05 $25
SKA20A-05 $27
SD-25A-5 $20
--------
Joe Gores
|
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user9253
Joined: 28 Mar 2008
Posts: 1938
Location: Riley TWP Michigan
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| Posted: Mon Apr 13, 2015 5:14 pm Post subject: Re: V-Charger |
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|
http://www.jameco.com/Jameco/Products/ProdDS/2166629.pdf
I wonder what the output would be if the load were less than 300ma?
Would it refuse to turn on unless it sees a certain resistance?
Or would it turn on but the voltage would be unstable?
Joe
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handainc(at)madisoncounty
Guest
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| Posted: Mon Apr 13, 2015 5:32 pm Post subject: V-Charger |
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Thanks George.....will check those out.
M. Haught.
Sent from my iPad
On Apr 13, 2015, at 12:28 PM, Neal George <ngeorge(at)continentalmotors.aero (ngeorge(at)continentalmotors.aero)> wrote:
[quote] <![endif]--> 120 Clean false false false EN-US X-NONE X-NONE <![endif]--> <![endif]-->/* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman","serif";} <![endif]--> <![endif]--> <![endif]-->
Marvin –
We use one of these in our Cherokee, have not noticed any interference …
http://Commitlift.com
Neal
From: On Behalf Of H. Marvin Haught Jr
Bob..... I am beginning work on a new panel for a Piper Pacer I am building. Primary navigation will be by a dock mounted iPad and everything will be hard wired. After flying for 20+ years with wires running all over the cockpit, I am determined that there will be none of that in the new bird. However I do need recharging capability for electronic devices and a reliable panel mount USB that does not emit interference. What is the solution, as the UK source provided here does not have stock, and the unit IS pricy.
M. Haught
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