Matronics Email Lists :: View topic - Relay Diodes and OVM Modules

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

Relay Diodes and OVM Modules

Matronics Email Lists Forum Index -> AeroElectric-List

View previous topic :: View next topic

Author Message

andrewbutler(at)ireland.c
Guest

Posted: Fri Aug 14, 2009 1:10 am Post subject: Relay Diodes and OVM Modules

Hello,



Self excitation is built into Z13-8Q. There are two 1N5400 diodes attached to the relay. One is in series with the coil. What is the purpose of having a diode here instead of just a piece of wire? I have wired up mine with this diode in place.



It appears to be linked to the presence of the Crowbar Overvoltage Module in parallel with the relay coil, as the same set-up is depicted in other drawings where it is employed (Z21A & Z31).



I have been queried as to why I have used a diode here (I basically followed the drawings) and I am unable to answer. Can someone help me understand the physics here so that I can come up with a meaningful answer.



Best regards,



Andrew Butler,

RV7 EI-EEO

Galway, Ireland.

Firewall Forward and wiring tidy up!

- 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