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

Chip Amps Amplifiers based on integrated circuits

grounding question
grounding question
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 9th March 2004, 08:54 AM   #1
skyraider is offline skyraider  Malaysia
diyAudio Member
Join Date: Jan 2004
Location: malaysia
Default grounding question

hi guys,
i need advice here. I often heard 'power ground' and 'signal ground'. What does it means? I usually just ground everything to a single point. I thought ground is just a sink for all the currents to flow? Why is there two ground points?
  Reply With Quote
Old 9th March 2004, 09:12 AM   #2
Ropie is offline Ropie  United Kingdom
diyAudio Member
Ropie's Avatar
Join Date: Jul 2003
Location: SW London
This is a very well covered point, but two grounds are used to separate the signal current from the power source. The two grounds are then linked together (with a thin wire to help prevent the larger power current flowing back and infecting the signal ground).

Most people building gainclones use two grounds per channel as the power star ground should be placed as close to the 1000uF caps as is humanly possible, as this keeps the signal path short and makes for a better sounding amp.

Look at any schematic for details of which point to connect to which of the two grounds.
  Reply With Quote


grounding questionHide 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
OPT grounding question Nihilist Tubes / Valves 16 2nd June 2009 02:06 AM
chassis grounding question mnr102 Solid State 2 12th July 2008 09:14 AM
Grounding problem question? excetara2 Solid State 5 10th November 2006 04:39 PM
Power grounding question falcott Chip Amps 0 21st September 2004 07:50 PM
LM3886TF Grounding Question mothman Chip Amps 1 4th May 2003 11:42 AM

New To Site? Need Help?

All times are GMT. The time now is 04:45 PM.

Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 15.79%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.
Copyright ©1999-2019 diyAudio