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

3 paralleled opa541's
3 paralleled opa541's
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 11th May 2005, 01:59 PM   #1
odysseybmx414 is offline odysseybmx414  United States
diyAudio Member
Join Date: Feb 2005
Location: Watertown, NY
Default 3 paralleled opa541's

how much power should i expect in general when i parallel 3 opa541 chips with +-21DCV(42.6V total) and drive a 2 ohm sub (dual 4 ohm voice coils hooked in parallel to give 2 ohm)
  Reply With Quote
Old 11th May 2005, 02:37 PM   #2
macboy is offline macboy  Canada
diyAudio Member
Join Date: Oct 2003
Location: Ottawa, Canada
Accourding to the datasheet, the output swing will go within about 4 V of each rails so the maximum voltage that this could drive will be about +/- 17 V. A sinewave at +/- 17 V (that's 34 V p-p) is 12.0 V rms. Convert that to power into 2 ohms, and you get 72 W rms (P = V^2 / R). Given the currents that you will be driving, you could easily get away with just two '541's instead of three, and still get the same output power. Or if you kept three, you could increase the power supply voltages to get more power.
  Reply With Quote


3 paralleled opa541'sHide 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
DAC 1955 paralleled fabiodord Digital Source 9 25th September 2008 11:20 PM
paralleled rectifiers for +/-v ? snkby Parts 4 23rd May 2006 04:24 PM
Paralleled Toroids? theAnonymous1 Solid State 5 19th July 2004 03:40 AM
DAC with paralleled TDA1541's sugano Digital Source 0 2nd May 2003 09:14 AM
Zen v4 with paralleled FETs Stanislav Pass Labs 15 4th March 2003 11:48 AM

New To Site? Need Help?

All times are GMT. The time now is 07:07 AM.

Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 16.67%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright ©1999-2017 diyAudio