Go Back   Home > Forums > >
Home Forums Rules Articles diyAudio Store Blogs Gallery Wiki Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Class D Switching Power Amplifiers and Power D/A conversion

DC protection
DC protection
Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Thread Tools Search this Thread
Old 1st March 2010, 09:59 PM   #11
portreathbeach is offline portreathbeach  United Kingdom
diyAudio Member
Join Date: Jan 2010
Location: Cornwall
Originally Posted by fredos View Post
Simply short the speaker output with a TRIAC, and add fuse on supply rail! No relay on speaker line, a cheap 30A TRIAC will do the job and blow fuse on power supply if their any DC! That's the way I protect the speaker from my amplifier and that's work very well!

This seems like a very simple way to implement DC protection! Please could someone explain how this works?

TRIACS have a gate input, is this left disconnected?

Am I also right in thinking that the TRIAC simply allows the DC to pass when it reaches around 1V and therefore allows the fuses to blow? If this is the case, could you just use 2 back to back diodes across the speaker terminals?
  Reply With Quote


DC protectionHide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Need help with NAD amp! Goes in protection silversweden Car Audio 43 28th January 2014 05:44 PM
DC-protection? Skorpio Solid State 4 1st December 2007 09:09 AM
speaker protection (OR) overload protection myanmar Solid State 7 13th July 2006 08:21 AM
protection Dj BASS AMP Solid State 7 26th March 2003 09:53 AM

New To Site? Need Help?

All times are GMT. The time now is 01:26 PM.

Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 16.67%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Copyright ©1999-2018 diyAudio