Calculations for 2ohm into 1200w @ a 60 degree load phase angle. ? - diyAudio
Go Back   Home > Forums > Amplifiers > Solid State

Solid State Talk all about solid state amplification.

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 26th December 2007, 12:25 AM   #1
Fanuc is offline Fanuc  United Kingdom
diyAudio Member
 
Join Date: Feb 2006
Location: Anstruther, Fife
Default Calculations for 2ohm into 1200w @ a 60 degree load phase angle. ?

Hi,

Need some help with some power output stage calculations! (not the greatest in the world at math plus no proper EE). Basically I want a design that delivers 300W rms into 8 ohms and doubles down to 4 ohm (600W), then 2 ohm (1200W).

Yes I am aware of voltage sag etc with heavy current delivery and resistive losses etc. The OP stage is regulated with low Z so I can ignore half of the usual arguements.

The snag is, that I am using a fully regulated output stage, so rather than work out the power calculations into a 1200w 2r (purely resistive) load I have to factor in load phase angle because there is no impulse (transient) power available from the series regulator for a reactive load. I also think the regulator has to be very very fast. This is the price to pay for excellent load regulation in a series reg I think.

So basically can someone do the calculations for 2ohm into 1200w @ a 60 degree load phase angle. ? Consider this the absolutely the worst case and should be able to drive some large PA speaker bass bins etc.

PS. This will be a one off diy design. I was thinking if I am going to build something make it "decade" proof! lol. A powerful amp transcends time I find! lol. ) still have some old hitachi PA types kicking around

Thanks for any help

Kevin
  Reply With Quote

Reply


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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
how to caculate the phase degree by spice ?? titanchen68 Class D 0 5th June 2006 01:49 AM
360 degree phase switch Puffin Subwoofers 19 18th April 2006 10:50 PM
360 degree phase switch Puffin Everything Else 4 10th April 2006 06:50 PM
passive crossover for 2ohm load Mikael Abdellah Parts 0 1st November 2005 11:57 AM
Can TDA7370 drive 2ohm load? Dxvideo Chip Amps 5 14th January 2004 09:32 AM


New To Site? Need Help?

All times are GMT. The time now is 01:00 PM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright 1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2