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

new LM4780 layout, any comments?
new LM4780 layout, any comments?
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 30th June 2009, 10:56 AM   #61
Redshift187 is offline Redshift187  Canada
diyAudio Member
Join Date: Aug 2008
Bleeder resistors are put one on each power supply rail, near the large capacitors. The purpose is to discharge the capacitors when power is removed, and there is no sonic purpose. Some people use them some don't. They increase (slightly) power dissipation, but increase (slightly) safety. The will not make much difference in how quick the amp turns off though.
  Reply With Quote
Old 30th June 2009, 03:18 PM   #62
AndrewT is offline AndrewT  Scotland
diyAudio Member
Join Date: Jul 2004
Location: Scottish Borders
They increase the draw on the Power Supply.
This increases the ripple on the PSU output.
A low bias ClassAB amplifier may suffer from increased 100Hz hum.
regards Andrew T.
Sent from my desktop computer using a keyboard
  Reply With Quote


new LM4780 layout, any comments?Hide 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
Crossover Layout Comments luvdunhill Multi-Way 13 4th February 2009 02:50 PM
Need comments on this P3A PCB layout goering Solid State 7 27th August 2004 06:04 AM
My new Aleph layout. Comments? louischia Pass Labs 12 18th May 2003 08:02 PM

New To Site? Need Help?

All times are GMT. The time now is 03:38 AM.

Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 15.79%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright ©1999-2017 diyAudio