MOSFET Amplifier IRFP240/IRFP9240 - Page 65 - 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 June 2012, 03:04 AM   #641
comasus is offline comasus  India
diyAudio Member
 
Join Date: Jul 2010
Location: India
These are the pictures
Attached Images
File Type: jpg 25062012116.jpg (490.3 KB, 1024 views)
File Type: jpg 25062012117.jpg (538.9 KB, 879 views)
File Type: jpg 25062012118.jpg (508.4 KB, 737 views)
File Type: jpg 25062012119.jpg (496.6 KB, 606 views)
  Reply With Quote
Old 22nd July 2012, 01:17 PM   #642
diyAudio Member
 
Join Date: Sep 2010
Location: Quezon City
Hi Comasus,

Did you notice any difference in sound when you connected it to your amplifier?
I just wonder if this short circuit + speaker protect module will affect the sound of my amplifier...

Thanks
  Reply With Quote
Old 22nd July 2012, 06:17 PM   #643
comasus is offline comasus  India
diyAudio Member
 
Join Date: Jul 2010
Location: India
Quote:
Originally Posted by jlester87 View Post
Hi Comasus,

Did you notice any difference in sound when you connected it to your amplifier?
I just wonder if this short circuit + speaker protect module will affect the sound of my amplifier...

Thanks
Yes i can clearly notice in tweeters giving unnatural sound
  Reply With Quote
Old 23rd July 2012, 06:19 AM   #644
diyAudio Member
 
Join Date: May 2009
Default irfp

Hi all, i`ve made this amp,(hv350.2) and i would like to say that is working perfectly, clip works like a charm.I would like to build second module, but i have run out of 0.47r/5w, what component i have to change to put 0.33r/5w, because i have a bounch of those.
I whant to say thank you to apex for sharing this amp with us.Thank you in advance for your advice
  Reply With Quote
Old 23rd July 2012, 06:09 PM   #645
diyAudio Member
 
apexaudio's Avatar
 
Join Date: Feb 2010
Location: Serbia
Quote:
Originally Posted by zighi2002 View Post
Hi all, i`ve made this amp,(hv350.2) and i would like to say that is working perfectly, clip works like a charm.I would like to build second module, but i have run out of 0.47r/5w, what component i have to change to put 0.33r/5w, because i have a bounch of those.
I whant to say thank you to apex for sharing this amp with us.Thank you in advance for your advice
Can you post pictures of your HV350.2 ? You can use 0.33R/5W without changes.
  Reply With Quote
Old 24th July 2012, 05:02 AM   #646
diyAudio Member
 
Join Date: May 2009
Default irfp

Sure apex I`ve uploaded a couple of them here Pictures by zighi202 - Photobucket Ive made the other module with 0r33.Works perfectly, clip and everything.I,ve made the regulated psu you shared with us, and i`ve set 60 volts for start.I`ve managed to make a pcb for regulated psu with 4 pairs of outputs, i think is enough for 2 modules.I will share that pcb but only after i had test it.(if somewone whant it ofecurce)
For tuning i`ve set bias using a 10r resistor insted of a fuse in rail, and i have set 2 volt trough it.
Ofecuorce i will make a protection too.If you have some more advice to modify something, or to do something diffrent i am open to it.

have a nice day all.
  Reply With Quote
Old 17th September 2012, 03:34 AM   #647
diyAudio Member
 
Join Date: Oct 2009
hi apex sir,
if i use hv23 to outdoor , is it need add extra output pairs?
which is better for outdoor? hv23 or hv350.v2
what is the maximum voltage to run this amps to get maximum watts?.
  Reply With Quote
Old 17th September 2012, 05:59 PM   #648
44250 is offline 44250  Serbia
diyAudio Member
 
44250's Avatar
 
Join Date: Jan 2011
Location: Ugrinovci-Zemun-BELGRADE
Send a message via AIM to 44250
Quote:
Originally Posted by zighi2002 View Post
Sure apex I`ve uploaded a couple of them here Pictures by zighi202 - Photobucket Ive made the other module with 0r33.Works perfectly, clip and everything.I,ve made the regulated psu you shared with us, and i`ve set 60 volts for start.I`ve managed to make a pcb for regulated psu with 4 pairs of outputs, i think is enough for 2 modules.I will share that pcb but only after i had test it.(if somewone whant it ofecurce)
For tuning i`ve set bias using a 10r resistor insted of a fuse in rail, and i have set 2 volt trough it.
Ofecuorce i will make a protection too.If you have some more advice to modify something, or to do something diffrent i am open to it.

have a nice day all.
You should add some more soldier to power traces,otherwise it looks great! How does bias current behaveing? On HV23 it starts with about 100mA per pair and it quickley goes down to about 20mA per pair as the heatsink goes warmer.
  Reply With Quote
Old 19th September 2012, 04:38 AM   #649
diyAudio Member
 
Join Date: Dec 2010
Location: wigan
Quote:
Originally Posted by qusp View Post
Apexaudio, thanks for sharing, but I think if you expected to come here, put your design on display (and perhaps sell some PCBs) and get universal praise for your design and think that because it has been in use for 10 years that it cant be improved on, you are mistaken. these guys are not criticizing, they are bouncing ideas to improve the circuit around. there are some serious pros here, in general the attitude here is a proactive one, no need to be defensive. if you dont want constructive criticism, I have to wonder why you posted...... take it on board; or not. up to you
Apex knows what you and your side kicks are like . I do too. you are here comericially apex is not . you call your attitude proactive i would call it somthing else . PS we all know your designs are the best NOT. Stop wondering as it has no place in DIYAudio!!!!!!!!.
G,Day Ripper
  Reply With Quote
Old 1st October 2012, 08:24 AM   #650
tjako is offline tjako  Poland
diyAudio Member
 
Join Date: Dec 2004
Location: Wroclaw
Default APEX with 2SA1943/2SC5200 bipolar output tranzistors

Quote:
Originally Posted by apexaudio View Post
In last tree years in my PA amplifiers I use new design with 2SA1943/2SC5200 bipolar output tranzistors and IRF2807 mosfets for step. Amplifier work in H class 0,+/-60V,+/-120V.
Good morning.
I appreciate your good work and great experience in this matter.

So, You mentioned you have a new design of APEX with 2SA1943/2SC5200 bipolar output tranzistors.

Where I can to find the scheme, hints and pcb's for this design?

I mean to try to build just such model, because I have several pieces of this transistors type. Besides I do not want to make an error in the calculation because a wrong trial always leads to destroy the semiconductor.

I'll gratefull for your help and a quick reply, even to my private mailbox - bionix_at_bionix_dot_vel_dot_ pl

Sincerely
Ted Jako

Last edited by Mooly; 1st October 2012 at 10:29 AM. Reason: Email address
  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
IRFP240&IRFP9240 power amplifier schematic mos Solid State 31 26th June 2012 08:21 AM
IRFP240 / IRFP9240 MOSFETs danieljw Swap Meet 8 4th July 2009 01:51 AM
Wtb: Irfp240 / Irfp9240 folkeb Swap Meet 1 10th March 2009 10:18 AM
IRFP240 + IRFP9240 -- pairs jackinnj Swap Meet 1 2nd June 2006 02:22 AM
IRFP240 and IRFP9240 Wanted richeros Swap Meet 1 9th November 2002 12:38 PM


New To Site? Need Help?

All times are GMT. The time now is 07:41 AM.


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