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[Kooka]

Originally Posted by sgarbialan

In theory the pin 1 of the molex connector, if I understood well, should be connected to the +5V to activate the mute function.. but in the molex connector there's no +5V pin available as in the other boards based on the TA3020.. so probably connecting it to a point of the board where there's the +5V used for the TA3020 or an external +5 (through a series resistor of 100ohms for security) should do the job.. In the datasheet of TA3020 and in the documents it says just "a logic high will activate the mute function".. I guess that this "logic high" should be the +5V but maybe I'm wrong. At any rate the mute function is not needed for anti-thump if you use the external speaker protection board..

Yes, I checked and tha logic high should be a +5v taken somewhere. But why not taking to the molex connector even those +5v if the idea was to use those +5v on the board? Bah, we'll see. Thanks by now, and happy 2010!

[sgarbialan]

But why not taking to the molex connector even those +5v if the idea was to use those +5v on the board?

If you look to the v3a and v2 there is the +5V pin in the molex connector.. only the v3b and v3c have a smaller molex (6 pins instead of 8) and they don't have the +5V..

[Cristi]

First of all, Happy New Year to Everybody !!!!

on the latest version of the TA3020 amplifier boards i removed the +5V out from the connector to make sure that this voltage will not be improperly used to supply other stages which will require different voltage or higher current than what can be provided, and alterate the amplifier performances or even damage. anyway for pull-up the mute pin the 5V can be picked up from the board, the small 470uF cap which is on the bottom left of the board, the closest one from the mounting hole. this operation must be done with extreme care, to not short-circuit something or damage the board.

[Kooka]

Originally Posted by cnx

First of all, Happy New Year to Everybody !!!!

on the latest version of the TA3020 amplifier boards i removed the +5V out from the connector to make sure that this voltage will not be improperly used to supply other stages which will require different voltage or higher current than what can be provided, and alterate the amplifier performances or even damage. anyway for pull-up the mute pin the 5V can be picked up from the board, the small 470uF cap which is on the bottom left of the board, the closest one from the mounting hole. this operation must be done with extreme care, to not short-circuit something or damage the board.

That capacitor should be C31, at least on the V3b board, right?

[Kooka]

Originally Posted by DIGORA

HY cnx

Do you have an idea to use a vertical heatsink of an amplifier box for the TA3020 ?

I have an empty box like this : http://www.audiophonics.fr/images2/4...PANTE-5U_1.jpg

8ch off TA3020

Do you have a pic without heatsink of the V3C ?

Thanks

Hi, that case is from Hifi2000, you can see more of them on their website. Many very nice cases...

[Cristi]

i would like to continue the discussions from this thread here: Connexelectronic - diyAudio
each category at it's section.
thank you.

[Cristi]

New products are coming soon. keep close !!!

[Cristi]

Originally Posted by fb

Is it possible to have the TA3020v3b board fitted with IRFP4228 mosfets? From what I read it is the best option - allows higher output and cooler running.

The IRFP4228 MOS-FET's are now available as option for TA3020v2, TA3020v3b and TA3020v3c amplifier modules:
Connexelectronic

[Jack musician]

Hi,Cristi,would like to know if the 1000watts peak power is 1000watts with an output of +-45V as well as +-55v or if it's current limited and give more power in 55 volta than 45volts.And if it's current limited what is the peak current we can have from the output.
Also interesting to know if for example we can have 1000watts peak for each side of the
supply when driving amplifier.thanks

[Jack musician]

I forgot to mention that my question was about the power supply smps10000.