 |
Matronics Email Lists
Web Forum Interface to the Matronics Email Lists
|
| View previous topic :: View next topic |
| Author |
Message |
echristley(at)nc.rr.com
Guest
|
 Posted: Wed Aug 02, 2006 12:32 pm Post subject: MPJA speed control |
 |
|
I read of the MPJA DC motor speed controller kit being used as a light
dimmer, so I ordered me one. Had it together in an afternoon and
breadboarded up some LEDs to give it a test. I have access to a scope
to check what it's doing, but haven't had time to go by Mark's shop
yet. So far, I find the light flickers visibly, and there is only a
very small change in the brightness as the adjustment knob is turned.
Has anyone else attempted to use this device to control the brightness
of LEDs, and if so, how successful were you?
--
,|"|"|, Ernest Christley |
----===<{{(oQo)}}>===---- Dyke Delta Builder |
o| d |o http://ernest.isa-geek.org |
| | - 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 |
|
 |
Mark Phillips in TN
Joined: 10 Jan 2006
Posts: 431
Location: Columbia, TN
|
| Posted: Thu Aug 03, 2006 3:57 am Post subject: MPJA speed control |
|
|
In a message dated 08/02/2006 3:34:49 PM Central Daylight Time, echristley(at)nc.rr.com writes:
| Quote: | Has anyone else attempted to use this device to control the brightness
of LEDs, and if so, how successful were you? |
>>>
I'm using one to drive over 60 red superbrights plus the incandescents0on my Van's fuel gauges. Works well with the exception of an occasional random flicker which I suspect is a AMP connector that needs some attention. I removed the variable resistor from the board and remote-located a 100Kohm, 2 watt from Digikey (# RV4N104C-ND) to the panel alongside the other lighting switches. Very linear control of all LEDs and fuel gauge bulbs, from full bright to almost completely off. Schematic on ACAD if interested...
Mark Phillips
| | - 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 |
|
_________________
From The PossumWorks... |
|
| Back to top |
|
|
sam.marlow
Joined: 25 Feb 2006
Posts: 99
|
| Posted: Thu Aug 03, 2006 5:41 am Post subject: MPJA speed control |
|
|
Where do I purchase one of these, and what is ACAD?
Fiveonepw(at)aol.com (Fiveonepw(at)aol.com) wrote:
| Quote: | In a message dated 08/02/2006 3:34:49 PM Central Daylight Time, echristley(at)nc.rr.com (echristley(at)nc.rr.com) writes:
| Quote: | Has anyone else attempted to use this device to control the brightness
of LEDs, and if so, how successful were you? |
>>>
I'm using one to drive over 60 red superbrights plus the incandescents on my Van's fuel gauges. Works well with the exception of an occasional random flicker which I suspect is a AMP connector that needs some attention. I removed the variable resistor from the board and remote-located a 100Kohm, 2 watt from Digikey (# RV4N104C-ND) to the panel alongside the other lighting switches. Very linear control of all LEDs and fuel gauge bulbs, from full bright to almost completely off. Schematic on ACAD if interested...
Mark Phillips
|
| | - 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 |
|
|
mark.steitle(at)austin.ut
Guest
|
| Posted: Thu Aug 03, 2006 8:15 am Post subject: MPJA speed control |
|
|
Hi Ernest,
Yes, I'm using the MPJA pwm speed controller for dimming LED's. In the
attached jpg. you can see the string of led's across the top of my panel
which are controlled by a single MPJA speed controller. I too
repositioned the potentiometer with a remote unit of higher quality. All
of my circuits were configured from the manufacturer to operate on 12v
as the MPJA pwm speed controller is designed to operate a 12v motor.
Works great with no noticeable flicker.
Mark S.
0
--
| | - 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: |
140.05 KB |
| Viewed: |
184 Time(s) |
|
|
|
| Back to top |
|
|
Mark Phillips in TN
Joined: 10 Jan 2006
Posts: 431
Location: Columbia, TN
|
|
| 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
