MOSFET Amplifier IRFP240/IRFP9240 - Page 35

apexaudio · 1st December 2010, 07:24 PM

Quote:

Originally Posted by vijay_meyou

Output seems like mosfet IRf 240 and 9240.

mile is it new ciruit ?

seems like all new componets

HV23 is circuit from post #1.
Regards

Valenca · 7th December 2010, 11:03 PM

Apex, i back !!!! haha... sory... finaly I can modificate the pictures of my HV350, gooood sound !!!

apexaudio · 8th December 2010, 08:09 AM

Quote:

Originally Posted by Valenca

Apex, i back !!!! haha... sory... finaly I can modificate the pictures of my HV350, gooood sound !!!

Nice work, what is rail voltage, bias, speakers...?
Regards

Valenca · 8th December 2010, 08:30 AM

The rail voltage is +/- 80v, I'm not remamber the bias now, speakers I use 4 WPU1509 (450W RMS - Selenium) is a BOOOOOMMMM... but sub-used with this amplifier. Do you undestand me ?

apexaudio · 8th December 2010, 08:58 AM

Quote:

Originally Posted by Valenca

The rail voltage is +/- 80v, I'm not remamber the bias now, speakers I use 4 WPU1509 (450W RMS - Selenium) is a BOOOOOMMMM... but sub-used with this amplifier. Do you undestand me ?

Maximum rail voltage +/-80v is for 4xIRFP240/9240, with 2xIRFP240/9240 use +/-60v max. Do you increase volume to light clip LED?
Regards

Valenca · 8th December 2010, 09:10 AM

No no, 2 x IRFP240/9240 was only for test...

Valenca · 8th December 2010, 09:18 AM

I put those modules in the box with good sink, tell me one thing when the clip LED lights, I mean the the sound is bad?

apexaudio · 8th December 2010, 11:24 AM

Quote:

Originally Posted by Valenca

I put those modules in the box with good sink, tell me one thing when the clip LED lights, I mean the the sound is bad?

No clip LED light in case output voltage is 12v to rail voltage, amp clip about 5v output to rail.
Regards

gooseneck · 9th December 2010, 02:06 AM

hi miles,
can you post power amplifier with grounded collector which you have tested already, coz this amp is simple in design like the PHONIC MAR Series.

apexaudio · 9th December 2010, 09:03 AM

Quote:

Originally Posted by gooseneck

hi miles,
can you post power amplifier with grounded collector which you have tested already, coz this amp is simple in design like the PHONIC MAR Series.

Phonic, Behringer... and many other brands are QSC clones.
http://www.qscaudio.com/support/libr...ies/rmx850.pdf
Regards

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8th December 2010, 08:30 AM	#344
Valenca diyAudio Member Join Date: Nov 2007	The rail voltage is +/- 80v, I'm not remamber the bias now, speakers I use 4 WPU1509 (450W RMS - Selenium) is a BOOOOOMMMM... but sub-used with this amplifier. Do you undestand me ?

8th December 2010, 09:10 AM	#346
Valenca diyAudio Member Join Date: Nov 2007	No no, 2 x IRFP240/9240 was only for test...

8th December 2010, 09:18 AM	#347
Valenca diyAudio Member Join Date: Nov 2007	I put those modules in the box with good sink, tell me one thing when the clip LED lights, I mean the the sound is bad?

9th December 2010, 02:06 AM	#349
gooseneck diyAudio Member Join Date: Apr 2010 Location: Ligao City, Albay, Philippines	hi miles, can you post power amplifier with grounded collector which you have tested already, coz this amp is simple in design like the PHONIC MAR Series.