Matronics Email Lists :: View topic - EV200 Conducted emissions

Matronics Email Lists
Web Forum Interface to the Matronics Email Lists

Get Email Distribution Too! FAQ Search Memberlist Usergroups Register

Profile Log in to check your private messages Log in

EV200 Conducted emissions

Matronics Email Lists Forum Index -> AeroElectric-List

View previous topic :: View next topic

Author Message

nuckollsr(at)cox.net
Guest

Posted: Sun Jan 22, 2006 9:20 pm Post subject: EV200 Conducted emissions

At 08:46 PM 1/22/2006 -0800, you wrote:



 	  Quote: 	
		  

<jrichard(at)ccser.com>



Eric and Others..



The EV200 uses a pulsed coil energizer scheme to enable a low average

current draw to hold the coil in place.  Normal aircraft contactors use DC

to close the coil then the same DC to hold the coil in place.  I talked to

the Kilovac rep about the pulse circuit and he said they have had a few

complaints about interference from the pulsing.  I'm not sure what kind of

interference, but I suspect conducted interference on the coil energizing

line spreading into other sensitive audio circuits.



Here's a web link to the EV200 PDF datasheet



         http://relays.tycoelectronics.com/datasheets/ev200.pdf



Has anyone experienced this interference and does the normal filter scheme

for noisy loads published by 'lectric Bob take care of it?


	


   Hmmmm . . . "noisy" isn't very definitive. I've been spending most of

   my time for the past two weeks in the EMC lab (best duty at RAC . . .

   if you need some thinking time. Dark, quiet, environmentally controlled,

   nothing to do but watch the paint dry). I think I saw one of those

   contactors in a junk box over in experimental flight test. If I can

   put my hands on it, I'll see if I can take a quick peek at conducted

   emissions for this critter. If I can't find it, maybe the Tyco guys

   will sample me one.



   In any case, never met a noise I couldn't filter . . . but I have

   seen some filters that nobody wanted to put in their airplane.



   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

Gilles.Thesee(at)ac-greno
Guest

Posted: Mon Jan 23, 2006 10:49 am Post subject: EV200 Conducted emissions

 	  Quote: 	
		  >I'm not sure what kind of

>interference, but I suspect conducted interference on the coil energizing

>line spreading into other sensitive audio circuits.

>....

>    

>

.... I'll see if I can take a quick peek at conducted

   emissions for this critter. If I can't find it, maybe the Tyco guys

   will sample me one.



   In any case, never met a noise I couldn't filter . . . but I have

   seen some filters that nobody wanted to put in their airplane.



   Bob . . . 



  




	


Hi Bob and all,



In the past few months, I believe I have run across some problems due to 

the Tyco EV-200.

For unknown reasons, it seemed to inhibit my Low Voltage Warning Module.

You'll find the story in English at :



http://contrails.free.fr/elec_lvwm_en.php



Some may remember my postings on the subject during the last two years. 

I found a workaround by changing the LVWM model. It seems some are 

impervious to the EV-200, and some are not. The guys at Tyco never 

answered my e-mails.



FWIW,

Regards,

Gilles Thesee

Grenoble, France

http://contrails.free.fr



P.S. Please feel free to help me correct my English

- 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

nuckollsr(at)cox.net
Guest

Posted: Mon Jan 23, 2006 1:19 pm Post subject: EV200 Conducted emissions

Interesting! I couldn't find the EV-200 relay I thought was

    laying loose in the junk box. I'll see if I can get them

    to sample me one.



    Bob . . .



 	  Quote: 	
		  Hi Bob and all,



In the past few months, I believe I have run across some problems due to

the Tyco EV-200.

For unknown reasons, it seemed to inhibit my Low Voltage Warning Module.

You'll find the story in English at :



http://contrails.free.fr/elec_lvwm_en.php



Some may remember my postings on the subject during the last two years.

I found a workaround by changing the LVWM model. It seems some are

impervious to the EV-200, and some are not. The guys at Tyco never

answered my e-mails.



FWIW,

Regards,

Gilles Thesee

Grenoble, France

http://contrails.free.fr



P.S. Please feel free to help me correct my English 



--




	




        Bob . . .

      < What is so wonderful about scientific truth...is that >

      < the authority which determines whether there can be   >

      < debate or not does not reside in some fraternity of   >

      < scientists; nor is it divine. The authority rests     >

      < with experiment.                                      >

      <                            --Lawrence M. Krauss       >

                   http://www.aeroelectric.com

- 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

Display posts from previous:

	Matronics Email Lists Forum Index -> AeroElectric-List	All times are GMT - 8 Hours
Page 1 of 1

Jump to:

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