MOSFET Amplifier IRFP240/IRFP9240 - Page 20

apexaudio · 14th April 2010, 07:06 PM

Quote:

Originally Posted by Valenca

Apex, Could you send the schema and PCB of power?

What do you mean "power"?

Valenca · 15th April 2010, 10:35 AM

Sorry, the "power" the same as "Amplifier" in brazil.

apexaudio · 11:25 AM

Quote:

Originally Posted by Valenca

Sorry, the "power" the same as "Amplifier" in brazil.

U can find circuits and pcbs in my threads,
900W H-class PA Amp with Limiter and 500w PA amplifier with Limiter
http://www.diyaudio.com/forums/searc...earchid=963131
Regards

Valenca · 15th April 2010, 11:13 AM

My friend, The link not work.

Valenca · 15th April 2010, 11:30 AM

OK, thanks !

I found.

apexaudio · 16th April 2010, 08:33 PM

Quote:

Originally Posted by Valenca

Apex, Could you send the schema and PCB of power?

This PSU was used in time when I building this mosfet amplifier. There is PSU, DC and overload cut-out protect for each channel and soft-start for toroidal transformer. This circuit can be used with any amplifier.

apexaudio · 19th April 2010, 10:52 PM

APEX MOSFET HV-23 screen from sim.

apexaudio · 23rd April 2010, 05:03 PM

PA Protect can be used with Hi-Fi amps also. For silent operation 47R/5W do not stafed, and fan do not work on low speed, when heatsink temperature is over 60deg it will turn on to high speed, and even without fan when heatsink is over 90deg protect will cut-out speakers anyway.

apexaudio · 23rd April 2010, 05:52 PM

Short circuit protect cut-out speakers, and not turn on again until amplifier was turn off, and turn on again (power on reset). DC protect turn on speakers when DC gone, and thermal protect turn speakers again when amp get cold.

Valenca · 27th April 2010, 11:09 AM

Hallo apex, My HV350 is almost done, I wonder with this amplifier adjust the BIAS. could you help me?

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15th April 2010, 10:35 AM	#192
Valenca diyAudio Member Join Date: Nov 2007	Sorry, the "power" the same as "Amplifier" in brazil.

15th April 2010, 11:13 AM	#194
Valenca diyAudio Member Join Date: Nov 2007	My friend, The link not work.

15th April 2010, 11:30 AM	#195
Valenca diyAudio Member Join Date: Nov 2007	OK, thanks ! I found.

23rd April 2010, 05:52 PM	#199
apexaudio diyAudio Member Join Date: Feb 2010 Location: Serbia	Short circuit protect cut-out speakers, and not turn on again until amplifier was turn off, and turn on again (power on reset). DC protect turn on speakers when DC gone, and thermal protect turn speakers again when amp get cold.

27th April 2010, 11:09 AM	#200
Valenca diyAudio Member Join Date: Nov 2007	Hallo apex, My HV350 is almost done, I wonder with this amplifier adjust the BIAS. could you help me?