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Professional Audio
Power stage asks for 50v voltage and I have a 72v tranfo. It serves?
hace 6 años
hace 6 años
Hi, the topic is this, I have a 36-0-36 v 3 amp source, and a small plate that asks me for 50 v to work.
The tranfo if I connect it from point to point will give me 72 v and not wanting to lose amperage I would not want to lower them to 50 v.
the question is, if I connect the 72 goes the entry asking for 50v will there be a problem or everything is fine and will I get it?
And if it is necessary to lower it, they recommend not to lose amperage.
From already thank you very much.
236
hace 6 años
What is the plate? possibly if it was over powered and you will change all the working voltages at the different points of the board, in addition to 72 when you rectify and filter it equal rises to 82, what you could do is use a single phase of the amplifier leaving it at 36, that when you rectify it and filter it the same reaches about 50, that is worth it if the plate does not use symmetric tension.
hace 6 años
Haber, the transformer is 36-0-36 3 amp. Alternating current.
The board is for an audio power of 130w. Asking for an income of 50 v.
When you make the diode bridge and the capacitor, bone rectification and filter, you think it will reach 41 volt approx.
Is this preferable to greater tension? let me know and long.
268
hace 6 años
hello brother FIRST is absolutely right, do not target 72v because you are going to break several components greetings
hace 6 años
Yes, the question is that if I give only one channel I will not kill the transformer in a short time.
1.274
hace 6 años
hace 6 años
Let's see, do not be confused, if you look closely the plate works with voltages + 50v Gnd -50v, what you must put together is a symmetrical source with which you will have the final voltage you need of + 50v and -50v approximately, each point of the traffic will go to the bridge rectifier, obtaining from this the positive and the negative, and the central point of the traffic will be the Gnd, obviously with its capacitors connected correctly.
65.783
hace 6 años
hace 6 años
Error in the calculations, if it has 72 volts of alternating and rectifies it with a diode bridge it would go to 101 volts dc, the whole amplifier would fly since it asks only 50 rectified volts. If you need only 50 volts you can use two connections of the 3 that has the secondary of the traffic and send it to a diode bridge and get 50 volts, since 36 volts of alternating rectified delivers 50 volts dc Now that I have seen the aries plate 130w, if you need a symmetric source, and that Have you serve. Greetings
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