 |
Matronics Email Lists
Web Forum Interface to the Matronics Email Lists
|
| View previous topic :: View next topic |
| Author |
Message |
email(at)jaredyates.com
Guest
|
 Posted: Wed Jan 05, 2011 10:45 am Post subject: Pulse Wave Modulation Dimmers |
 |
|
Earlier someone on the list asked about using these as LED dimmers:
http://www.aircraftspruce.com/catalog/elpages/pwmDimmer.php
Just to follow up, did anyone ever install them and have anything good
or bad to say about them? I noticed that some very similar looking
units are available here:
http://www.allelectronics.com/make-a-store/item/DMR-9/12VDC-18W-PWM-DIMMER/SPEED-CONTROL/1.html
and
http://www.allelectronics.com/make-a-store/item/DMR-10/DUAL-12-VDC-18W-PWM-DIMMER/SPEED-CONTROL/1.html
for a lower price. As Bob said before, it's cheap enough to buy and
try, (even cheaper now), but I thought I'd check first just in case.
| | - 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:
http://www.matronics.com/Navigator?AeroElectric-List |
|
|
|
| Back to top |
|
 |
longg(at)pjm.com
Guest
|
| Posted: Wed Jan 05, 2011 11:41 am Post subject: Pulse Wave Modulation Dimmers |
|
|
Jared,
I use one of these for my panel LED lights. It works ok. Occasionally
the lights blink on/off when the switch is completely off. Also, the
backing on the switch does not grip the panel well which tends to allow
it to spin in the hole.
It modulates the light perfectly and doesn't jump, spark or crackle when
adjusting. If you have LED lights you want to dim, you need one of these
(or a similar cousin). As indicated in the pictures it is easy to hook
up.
Glenn E. Long
--
| | - 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:
http://www.matronics.com/Navigator?AeroElectric-List |
|
|
|
| Back to top |
|
|
tim2542(at)sbcglobal.net
Guest
|
| Posted: Wed Jan 05, 2011 12:35 pm Post subject: Pulse Wave Modulation Dimmers |
|
|
On 1/5/2011 10:39 AM, Jared Yates wrote:
| Quote: |
Earlier someone on the list asked about using these as LED dimmers:
|
I used one, the first one was bad out of the box, I didn't discover it
until several months had passed but ACS replaced it after some
"discussions".
One thing though, I'm told PWM will not dim most avionics.
Tim Andres
| | - 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:
http://www.matronics.com/Navigator?AeroElectric-List |
|
|
|
| Back to top |
|
|
nuckolls.bob(at)aeroelect
Guest
|
| Posted: Wed Jan 05, 2011 12:47 pm Post subject: Pulse Wave Modulation Dimmers |
|
|
At 01:39 PM 1/5/2011, you wrote:
They will function as advertised. The only caveat goes
to the method for bringing wires onto and off the board.
[img]cid:.0[/img]
We discussed the "twist-n-squash" terminal boards
a few years back when Greg featured them on the BMA power
distribution board described on page 41 of
http://www.aeroelectric.com/articles/richter/response_1.pdf
[img]cid:.1[/img]
This tecnology for bringing wires off of etched circuit
board argues with the idea of gas-tight connections
favored with immediately adjacent insulation support
discussed in . . .
http://www.aeroelectric.com/articles/terminal.pdf
The technology for these dimmers is pretty simple. Here's
on example of a duty cycle controller suitable
for their LED or incandescent lamps.
[img]cid:.2[/img]
A dimmer of this genere could be crafted
with some really solid termination technology
(d-sub, fast-on, etc. etc). Bill of materials
is about $10.
Bob . . .
| | - 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:
http://www.matronics.com/Navigator?AeroElectric-List |
|
| Description: |
|
| Filesize: |
47.2 KB |
| Viewed: |
2492 Time(s) |
|
| Description: |
|
| Filesize: |
121.37 KB |
| Viewed: |
2492 Time(s) |
|
| Description: |
|
| Filesize: |
35.67 KB |
| Viewed: |
2492 Time(s) |
|
|
|
| Back to top |
|
|
nuckolls.bob(at)aeroelect
Guest
|
| Posted: Thu Jan 06, 2011 4:50 am Post subject: Pulse Wave Modulation Dimmers |
|
|
| Quote: | I used one, the first one was bad out of the box, I didn't discover
it until several months had passed but ACS replaced it after some
"discussions".
One thing though, I'm told PWM will not dim most avionics.
|
Avionics with LCD screens often use
florescent tubes for backlighting. These
lamps use hv power supply/ballast assembly
that does not function well at lower voltages
conductive to "dim" operations.
Bob . . .
| | - 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:
http://www.matronics.com/Navigator?AeroElectric-List |
|
|
|
| Back to top |
|
|
|
|
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You can download files in this forum
|
Powered by phpBB © 2001, 2005 phpBB Group
|
Get Email Distribution Too!
FAQ
Search
Memberlist
Usergroups
Register
Profile
Log in to check your private messages
Log in
