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

Solid State Talk all about solid state amplification.

Noise filter for my amp? Please help
Noise filter for my amp? Please help
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
Reply
 
Thread Tools Search this Thread
Old 30th October 2007, 08:30 AM   #1
jacquesl is offline jacquesl  South Africa
diyAudio Member
 
jacquesl's Avatar
 
Join Date: Feb 2005
Location: Lego Land
Default Noise filter for my amp? Please help

A couple of years ago I build a 200W RMS and now I have my own homemade completed UPS with a load off extra functions added plus working serial interface for PC, but I have a HUGE problem, then I try to debug my UPS it sometimes trip then I plug the amp in with the same UPS line, and I hear a noise on my speakers then it runs on battery power (mains failure), because of my modified sine wave inverter, but my mixer and PC doesn't make any noises

So is there a way of putting a cap or something in parallel with my amps transformer in the mains line to suppress the noise from my UPS, because it make my inverter tripping or (induction/emf/noise) feedback or something

My amp takes 13Watt on idle
The total is 200W then PC is on + screen + mixer + amp
Inverter is 400W and 800W peak


thx
  Reply With Quote
Old 30th October 2007, 06:23 PM   #2
myhrrhleine is offline myhrrhleine  Belize
diyAudio Member
 
myhrrhleine's Avatar
 
Join Date: Jan 2006
Location: Avalon Island
>The total is 200W

But how much power does it use to deliver 200Watts?
How efficient is it?
How many channels?
__________________
[Grasshopper]:Old man, how is it that you hear these things?
[master]:Young man, how is it that you do not?
  Reply With Quote
Old 30th October 2007, 08:32 PM   #3
jacquesl is offline jacquesl  South Africa
diyAudio Member
 
jacquesl's Avatar
 
Join Date: Feb 2005
Location: Lego Land
the amp takes 13W AC power then on normal use "idle mode, no music playing"

its a 2 channel amp, but it makes a annoying buzz sound on my speakers then i run it on inverter power

transistors is MJ2955 AND 2N3055 a couple of them, but i need to make a plan with my amp or something because then it switches over to inverter power in a 3/60 of second dip it triggers something in my inverter to shut down "some times"
  Reply With Quote

Reply


Noise filter for my amp? Please helpHide 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
USB noise filter Thomas Digital Source 8 23rd January 2014 10:50 PM
Choke, filter for white noise grandcanuck Analog Line Level 0 10th September 2008 04:20 PM
Noise filter for my amp? Please help jacquesl Power Supplies 35 7th November 2007 06:35 PM
Question about active filter noise sol Solid State 2 17th August 2006 05:59 AM
using noise filter or not?? ronardi Parts 0 17th April 2005 06:27 AM


New To Site? Need Help?

All times are GMT. The time now is 12:00 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
Wiki