ucd 25 watts to 1200 watts using 2 mosfets - Page 299

manojtm · 30th November 2012, 11:52 AM

Quote:

what is the switching frequency?

@250KHz

Regards
MANOJ

stewin · 30th November 2012, 12:56 PM

thanks manoj you are a saint

manojtm · 1st December 2012, 06:20 AM

Hi ALL,

IRFP250 can switch up to 1MHz(1000nS). not tested with class d amp, simple oscillator used for testing(supply 24V)

Regards
MANOJ

don2007ksa · 1st December 2012, 04:50 PM

To chago25,please check

stewin · 2nd December 2012, 11:43 AM

hi all the correct artwork of irs900d

jancso2002 · 2nd December 2012, 12:58 PM

Quote:

Originally Posted by don2007ksa

To chago25,please check

Hello, in this version we built four pieces, none work, even planting corrections pieces notified by the author.
enter only periodic oscillation and works only with two IRFB 2772
I say this because others have no trouble on this scheme

jancso2002 · 01:21 PM

Quote:

Originally Posted by stewin

hi all the correct artwork of irs900d

Hello, in this version we built four pieces, with two IRFB 2772 powered by 75V, with small changes works perfectly. frequency is 450 KHz
which is the rated power of the amplifier and is the standard audio input

ionutzxpo · 2nd December 2012, 01:14 PM

hy ,jancso IRFB4227,450Khz ....

stewin · 2nd December 2012, 01:19 PM

Quote:

Originally Posted by manojtm

Hi ALL,

IRFP250 can switch up to 1MHz(1000nS). not tested with class d amp, simple oscillator used for testing(supply 24V)

Regards
MANOJ

will this be true at +/-60vlts

jancso2002 · 2nd December 2012, 01:19 PM

Quote:

Originally Posted by ionutzxpo

hy ,jancso IRFB4227,450Khz ....

give 450 kHz, with your help and many thanks for the support given to you

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30th November 2012, 12:56 PM	#2982
stewin diyAudio Member Join Date: Jul 2007	thanks manoj you are a saint

1st December 2012, 06:20 AM	#2983
manojtm diyAudio Member Join Date: Aug 2008	Hi ALL, IRFP250 can switch up to 1MHz(1000nS). not tested with class d amp, simple oscillator used for testing(supply 24V) Regards MANOJ

2nd December 2012, 01:14 PM	#2988
ionutzxpo diyAudio Member Join Date: Sep 2009 Location: Romania,Calarasi	hy ,jancso IRFB4227,450Khz ....