ucd 25 watts to 1200 watts using 2 mosfets - Page 328

Hadighorbani · 22nd January 2013, 06:02 PM

Quote:

Originally Posted by manojtm

Hi Hadi,

Over current preset point connected to 104 this line should be connect to zener ZD5v6

Regards
MANOJ

thanks sir manoj

DETED AUDIO · 23rd January 2013, 02:51 PM

Hi All, good night ... ^___^

andrewlebon · 23rd January 2013, 03:29 PM

Hi IRSound
greetings TRY detex audio 2 pair amp with ocp post# 3219 FIRST PICTURE
i used orignal cores which detex audio used 2 cores parallel 2 srx speakers on 2 ohm load
NO ISSUES with amp heatwise and sound
warm regards
andrew lebon

luizcpimenta · 23rd January 2013, 03:42 PM

Quote:

Originally Posted by andrewlebon

Hi IRSound
greetings TRY detex audio 2 pair amp with ocp post# 3219 FIRST PICTURE
i used orignal cores which detex audio used 2 cores parallel 2 srx speakers on 2 ohm load
NO ISSUES with amp heatwise and sound
warm regards
andrew lebon

Hi andrewlebon.
You can send me the layout you are using the plates?
Thank you.
luizcpimenta@yahoo.com.br
luizcpimenta@gmail.com

IRSound · 23rd January 2013, 04:24 PM

Hi Andrewlebon ,
Thanks for guides..

yes , i should try it ! but can you tell me about output inductor ? what is the part number , manufacture and where the core originally from ? what is the value if you measured it with lcr meter ?

did you use FDA69N25 ?

Regards,
IRSound

luizcpimenta · 23rd January 2013, 04:50 PM

Quote:

Originally Posted by andrewlebon

Still to test on 120 volts dc +/- sameerx1
warm regards
andrew lebon

Hi andrewlebon.
You can send me the files of smps and amplifier?
Thank you

SERGIODS · 24th January 2013, 03:10 AM

Quote:

Originally Posted by Hadighorbani

in this picture
bias gnd connected to -vss
about +vdd: can i connect the input pin lm7812 to +vdd and connect the out put pin lm7812 to + bias ?
what about gnd ? i mean can i connect the input lm7812 to gnd and out put pin lm7812 to +biass ?
thanks friends

Well then the PCB of this other part is that if you do not mind. that looks great (DETEX), if it were in sprint layout, or other software would be great, thank you very much in advance to all

Also if they could climb the source information and the delay speakers(off delay)

jlester87 · 03:53 AM

Quote:

Originally Posted by irvynejay

@jlester87
gates diodes 1N5817/5819

Hi irvinejay,

Why is 1n4148 not suitable? It has a trr of 4ns.
Should the gate diode be a schottky type?

Thanks

ionutzxpo · 24th January 2013, 03:54 AM

Trr 4ns but at 400mA current will heat. 1N5817/5819 has 1A will do just fine or MUR120 the best, low Trr and 1A (this is what i use in my comercial amps)

jlester87 · 24th January 2013, 04:33 AM

Thanks ionutzxpo,

But I think not all 1A is flowing into it because of the parallel resistor.

23rd January 2013, 02:51 PM	#3272
DETED AUDIO diyAudio Member Join Date: Dec 2007 Location: NAKHONRATCHASIMA	Hi All, good night ... ^___^ __________________ detex-audio

23rd January 2013, 03:29 PM	#3273
andrewlebon diyAudio Member Join Date: Feb 2008	Hi IRSound greetings TRY detex audio 2 pair amp with ocp post# 3219 FIRST PICTURE i used orignal cores which detex audio used 2 cores parallel 2 srx speakers on 2 ohm load NO ISSUES with amp heatwise and sound warm regards andrew lebon __________________ [image][/image]"It's Better to try and fail than to never know and always wonder"

24th January 2013, 03:54 AM	#3279
ionutzxpo diyAudio Member Join Date: Sep 2009 Location: Romania,Calarasi	Trr 4ns but at 400mA current will heat. 1N5817/5819 has 1A will do just fine or MUR120 the best, low Trr and 1A (this is what i use in my comercial amps) __________________ Iacob Ionut www.pulsaudio.com

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23rd January 2013, 04:24 PM	#3275
IRSound diyAudio Member Join Date: Feb 2012	Hi Andrewlebon , Thanks for guides.. yes , i should try it ! but can you tell me about output inductor ? what is the part number , manufacture and where the core originally from ? what is the value if you measured it with lcr meter ? did you use FDA69N25 ? Regards, IRSound

24th January 2013, 04:33 AM	#3280
jlester87 diyAudio Member Join Date: Sep 2010 Location: Quezon City	Thanks ionutzxpo, But I think not all 1A is flowing into it because of the parallel resistor.

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